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DTSTART;VALUE=DATE:20150816
DTEND;VALUE=DATE:20150822
DTSTAMP:20260424T164244
CREATED:20140909T134506Z
LAST-MODIFIED:20140909T134506Z
UID:1917-1439683200-1440201599@www.geotraces.org
SUMMARY:Goldschmidt 2015
DESCRIPTION:Goldschmidt 2015  Dates: 16-21 August 2015 Location: Prague\, Czech Republic \nFor further information: http://goldschmidt.info/2015/index \nGEOTRACES sessions: \n \nTheme 2: Ocean Geochemistry. Present Conditions and Past Variation: fluxes\, reservoirs and processes \n \nCo-ordinators:Geraldine Sarthou (Brest University\, France)Andrew Bowie (University of Tasmania) \n \nTeam members:Katherine Barbeau (Scripps\, USA)\, Kristen Buck (Univ South Florida\, USA)\, Zanna Chase (Institute for Marine and Antarctic Studies\, Austra)\, Rob Middag (Univ Otago\, New Zealand)\, James Moffett (Univ. Southern Carolina\, USA) \n \nOur understanding of the functioning of the Earth system requires a knowledge of the broad spectrum of processes that influence chemical composition\, cycling and transfer of elements in the oceans and their interactions with the atmosphere\, land and crust. Ocean geochemistry aims to link and integrate studies of the modern oceans with work using proxies to define how ocean chemistry and the coupled ocean-atmospheric system has changed through the past on a number of different timescales. Critical to these efforts are considerations of how ocean chemistry influences and responds to biological activity and the impact of anthropogenic activity on the marine environment\, with important outcomes to issues as diverse as climate change and the capacity of the oceans to remove toxic metals. This theme welcomes submissions in a wide range of marine research areas\, including contemporary ocean composition and speciation\, transport processes in the ocean\, air-sea gas exchange\, paleo-oceanography\, to the evolution of the ocean due to environmental forcings such as acidity\, temperature\, and oxygen. \nTheme 2 sessions descriptions (complete abstracts of all presentations are available at Goldschmidt site\, please click on the links below to access the Goldschmidt webpage for each session): \n02a: Trace Metals in the Ocean: Distributions\, Isotopic Variation and SpeciationSession Convenors: Katherine Barbeau (UC San Diego\, Scripps Institution of Oceanography\, USA)\, Andrew Bowie (University of Tasmania)\, Kristen Buck (University of South Florida\, College of Marine Science\, USA)\, Rob Middag (Univ Otago\, New Zealand)\, Christopher Pearce (National Oceanography Centre)\, Phil Pogge von Strandmann (Earth Sciences\, University College London\, UK)\, Géraldine Sarthou (LEMAR CNRS\, Brest\, France). \nAbstract: Many trace elements are critical for marine life. However\, the mechanisms controlling how these metals influence the functioning of ocean ecosystems remain elusive. In conjunction with changes in concentration and speciation\, variations in metal stable isotopes provide enhanced discriminatory power for constraining these biogeochemical cycles\, as each process imparts a unique isotopic signature to the water column. The GEOTRACES program\, which aims to map the world’s oceans for trace elements and isotopes with unprecedented resolution\, combined with a growing inventory of metal isotope systems\, has facilitated rapid progress in this area. This session seeks to bring together scientists from recent oceanographic cruises to integrate results within and between ocean basins\, providing new insights on the behaviour of trace metals in the global ocean. We invite abstracts on all aspects of oceanic trace metal distributions and speciation\, as well as their isotopes (both radiogenic and stable)\, including their application to reconstructing past marine processes such as ocean circulation\, redox conditions and hydrothermal activity. We also encourage inter-calibration studies\, development of new analytical techniques and modelling work. \nKeynote speaker: Gideon Henderson (University of Oxford\, UK)Invited speakers: François Lacan (LEGOS CNRS\, Toulouse\, France) \n02b: Radionuclides in the OceanSession Convenors: Bob Anderson (Lamont-Doherty Earth Observatory\, USA)\, Ken Buesseler (Woods Hole Oceanographic Institution\, USA)\, Pere Masque (Universitat Autònoma de Barcelona) \nAbstract: Natural uranium/thorium series\, cosmogenic and anthropogenic radionuclides\, with their in-built “clocks” and contrasting geochemical properties and biological affinities\, have been instrumental for understanding and quantifying many important questions in oceanographic research. Examples include circulation and mixing of water masses\, particle cycling\, sediment and coral dating\, and fluxes at ocean boundaries\, amongst many other processes.  The Fukushima Dai-ichi disaster has also recently heightened public and policy concerns related to the human health effects of radioactivity attributable to external exposure from ocean contact and internal exposure from seafood consumption. Yet knowledge gaps remain regarding the spatial and depth distributions and the temporal evolution of many radionuclides of importance to both oceanographic and human health issues. This session will bring together scientists that are using radionuclides to better understand processes in the oceans through field based studies\, such as GEOTRACES\, laboratory experiments\, and modeling approaches.  This session will also accept presentations on advances in our methods for sampling and the analysis of ocean radionuclides.  More broadly\, the session will consider presentations on new tools to enhance public understanding of radioactivity\, and the education and training of the next generation of marine radiochemists. \nInvited speakers: Valentí Rodellas (Institut de Ciència i Tecnologia Ambientals\, Universitat Autònoma de Barcelona\, Spain)\, John Smith (Bedford Institute of Oceanography\, Canada)\, Walter Geibert (Alfred Wegener Institute\, Germany) \n \n02c: Past Changes in Ocean Biogeochemistry and Circulation and their Interaction with ClimateSession Convenors: Zanna Chase (Institute for Marine and Antarctic Studies\, Australia)\, Martin Frank (GEOMAR Helmholtz centre for ocean research Kiel\, Germany)\, Norbert Frank (University of Heidelberg\, Germany)\, Katharina Pahnke (ICBM and MPI for Marine Microbiology\, Germany)\, Laetitia Pichevin (University of Edinburgh\, UK)\, Laura Robinson (University of Bristol\, UK)\, Tina van de Flierdt (Imperial College London\, UK)\, Kazuyo Tachikawa (Cerege\, CNRS\, France) \nAbstract: Ocean biogeochemistry and circulation have influenced or even controlled climate on different time scales. Given that historical observations of ocean properties are restricted to the last ~100 years\, it is essential to reconstruct their involvement in Earth’s climate prior to human induced changes.Trace-element and isotope geochemistry offer powerful tools to constrain such changes. For this session we invite contributions addressing past ocean circulation\, productivity and nutrient cycling based on stable\, radiogenic\, or radioactive isotope signatures or other geochemical tracers from millennial to million year time-scales from the recent past to deep time\, from bulk sediment to deep-sea corals. We also encourage contributions that integrate proxy data and models to understand the dynamics of past ocean circulation. \nKeynote speaker: Jess Adkins (California Institute of Technology\, USA)Invited speaker: Ruza Ivanovic (University of Leeds\, UK) \n02d: What are the unifying principles common to all three Oxygen Minimum Zones (OMZs)?Session Convenors: Jim Moffett (Univ. Southern Carolina\, USA)\, Aurélien Paulmier (LEGOS\, France) \nAbstract: Oxygen minimum zones (OMZs) arise from a combination of high productivity on overlying waters and sluggish rates of ventilation within their core\, giving rise to strong oxygen deficits.  In three OMZs (the Arabian Sea\, Eastern Tropical South Pacific\, and Eastern Tropical North Pacific) oxygen is probably effectively zero\, based on recent sensor data.   These are important areas for fixed nitrogen loss on a global scale. Other OMZs\, including the Benguela Upwelling and Bay of Bengal\, are poised to become denitrifying on a large scale but are not so at present. These regions have complex geochemistry and a global significance that extends beyond the nitrogen cycle alone. They are critical domains in which to investigate global change\, with shifts in redox chemistry and their boundaries evident or predicted to occur in the near future. Moreover\, carbon preservation in underlying sediments makes them excellent regimes to study past changes in ocean processes. The purpose of this session is to explore the biogeochemical features common to all OMZs as well as the features that make them different.Many nations have mounted expeditions to study OMZs in recent years\, including several European nations\, Japan\, the USA and states bordering OMZs\, particularly Peru\, Chile and India. Three cruises in the International GEOTRACES program have been staged in denitrifying OMZ regions since 2009\, by Japan\, the USA and India. Researchers from these and other programs\, as well as benthic studies are encouraged to participate in this session. \nKeynote speaker: Bess Ward (Princeton University\, USA)Invited speakers:  Niels Peter Revbesch (University of Aahrus\, Denmark)\, Marcel Kuypers (MPI for Marine Microbiology\, Germany)\, Phyllis Lam (NOCS\, UK)\, Sunil Singh (Physical Research Laboratory\, India) \n02e: Air-Sea Exchange\, the Biological Pump\, and Ocean AcidificationSession Convenors: Steve Emerson (University of Washington\, USA)\, Doug Wallace (Dalhousie University\, Canada) \nAbstract: The pCO2 content of the atmosphere is regulated by exchange with the upper ocean via the solubility and biological pumps.  About one quarter of the anthropogenic CO2 introduced to the atmosphere is ultimately stored in the ocean causing a decrease in pH.  Understanding the physical\, biological and chemical processes controlling the atmosphere-ocean carbon cycle are key to accurate predictions of ocean feedbacks to global warming. While there have been great advances on the relationship between air-sea exchange and wind speed\, mechanisms controlling the fluxes are still uncertain.  Satellite-based estimates of the biological pump predict geographic variations that are not observed in upper-ocean\, mass-balance studies.  The response of ocean pH to the anthropogenic CO2 invasion is nearly certain\, but generalizations about the effects on marine biology are still tenuous.  This session explores recent advances in marine carbon cycle studies in the upper ocean and atmosphere. \nInvited speakers: Henry Bittig (Helmholtz Ctr for Ocean Research\, Kiel\, Germany) and Jan Kaiser (University of East Anglia\, U.K.) \n02f: Biogeochemistry of Arctic and Antarctic sea ice systemsSession Convenors: Jun Nishioka (Univ. Hokkaido\, Japan)\, Delphine Lannuzel (University of Tasmania\, Australia) \nAbstract: Observations have demonstrated that sea ice is biologically and chemically active in the global biogeochemical cycles. However\, Earth system models currently represent sea ice as biologically and chemically inert. The aim of this session is to bring together those working on all aspects of sea ice biogeochemistry to gain a better understanding of the exchanges at the interface between sea ice and the atmosphere and sea ice and the ocean. We particularly encourage presentations on processes involved in the distribution of macro-nutrients\, trace metals and organic carbon\, as well as the uptake and production of climatically-important gases such as CO2\, CH4\, and DMS. \nKeynote speaker: Martin Vancoppenolle (LOCEAN CNRS\, Paris\, France) \n02g: Advances in marine N\, P and Si biogeochemistrySession Convenors: Damien Cardinal (University Pierre and Marie Curie\, LOCEAN\, Paris)\, Albert Colman (University of Chicago\, USA)\, Masha Prokopenko (University of Southern California\, USA)\, Christian März (Newcastle University\, UK) \nAbstract: Nitrogen\, phosphorus and silicon are critical nutrients that help govern net primary production in the oceans and the efficiency of carbon export from the euphotic zone. Though their cycles are coupled\, each element has a very distinct cycle with regard to ocean sources and sinks\, modes of internal recycling and residence times. The biological requirements\, remineralization pathways\, and chemical characteristics (redox state\, solubility\, coupling with carbon) diverge in many important ways\, leading to formation of biogeochemically diverse oceanic regions. In the recent years numerous methodological advances have been developed and several basic concepts revisited with regard to these key macronutrients (e.g. diazotrophy\, Redfield Ratios…). This session will focus on the new insights gained by application of such analytical and modeling approaches. We will particularly encourage contributions dealing with inter-elemental (de)coupling\, multi-spatial scales (from cell to global)\, and/or multi-temporal scales (from geologic past to future). \nKeynote speaker: Laetitia Pichevin (University of Edinburgh\, UK)Invited speakers: Greg de Souza (Princeton University\, USA)\, Kate Hendry (Bristol University\, UK)\, Caroline Slomp (University of Utrecht\, The Netherlands)\, Claire Mahaffey (University of Liverpool\, UK)\, Curtis Deutsch/Tom Weber (University of Washington) \n02s: Goldschmidt 25th Anniversary \nCatherine Jeandel\, GEOTRACES IPO senior scientist\, reviewed the last 25 years of marine geochemistry. Her talk is available to download here.
URL:https://www.geotraces.org/event/goldschmidt-2015/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20150626
DTEND;VALUE=DATE:20150701
DTSTAMP:20260424T164244
CREATED:20150123T132130Z
LAST-MODIFIED:20150123T132130Z
UID:1939-1435276800-1435708799@www.geotraces.org
SUMMARY:IUGG General Assembly 2015 - IAPSO Symposium
DESCRIPTION:IUGG General Assembly 2015 – IAPSO SymposiumDates: 26-30 June 2015Location: Prague\, Czeck Republic \nFor further information: http://www.iugg2015prague.com/iapso-symposia.htm \nAbstract submission deadline: 31 January 2015 \nGEOTRACES-relevant sessions: \nP12. IIOE to IIOE-2 – Five Decades of Indian Ocean Oceanography: Challenges in Physics and Biogeochemistry of the Indian OceanConveners:  Satheesh Shenoi (Hyderabad\, India)\, Mike McPhaden (Seattle\, USA)\, Yukio Masumoto (Tokyo\, Japan) and Raleigh Hood (Cambridge\, USA). \nThe first coordinated investigation of the Indian Ocean was carried out during the International Indian Ocean Expedition (IIOE) in 1962–65. It consisted of a basin-wide survey that subsequently resulted in a comprehensive hydrographic atlas and number of regional studies\, including the first survey of the seasonally reversing Somali Current. IIOE was planned and executed by the Scientific Committee on Ocean Research (SCOR) and the Intergovernmental Oceanographic Commission (IOC) with the involvement of 20 countries. Forty-six research vessels belonging to 14 countries participated in the basin wide hydrographic surveys. It was an unprecedented interdisciplinary endeavor embracing physical oceanography\, chemical oceanography\, marine biology\, meteorology and marine geology and geophysics. \nIn the 50 years since the IIOE\, many subsequent programs have lead to improvements in our ability to observe the ocean and atmosphere through the deployments of oceanographic and meteorological sensors on Earth-observing satellites and through deployment of in situ instruments like autonomous profiling floats\, moored buoys\, tsunami detection networks\, sea level gauges\, etc. All of them have dramatically improved the characterization of both physical and biological oceanographic variability and the atmospheric forcing of that variability. Together with the improvements in observing\, ocean modeling in all its facets from short-term forecasting to seasonal prediction to climate projections also has improved dramatically. Based on these improvements\, science foci have also been changed from understanding of climatological states to their variability. Hence\, compared to the IIOE era\, which relied almost exclusively on ship-based observations\, new measurement technologies in combination with targeted and well-coordinated field programs provide the capacity for a much more integrated picture of the Indian Ocean variability. This symposium\, on the eve of the 50th Anniversary of the IIOE\, will review the current state of our knowledge about the physics and biogeochemistry of the Indian Ocean and highlight the scientific challenges to be addressed during a second multi-disciplinary\, multi-national Indian Ocean Expedition (IIOE-2) to be carried out over 2015-2020.
URL:https://www.geotraces.org/event/iugg-general-assembly-2015-iapso-symposium/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20150614
DTEND;VALUE=DATE:20150620
DTSTAMP:20260424T164244
CREATED:20150129T152055Z
LAST-MODIFIED:20150129T152055Z
UID:1940-1434240000-1434758399@www.geotraces.org
SUMMARY:12th International Conference on Mercury as a Global Pollutant
DESCRIPTION:12th International Conference on Mercury as a Global Pollutant Dates: 14 – 19 June 2015Location: Jeju\, Korea \nFor further information: http://mercury2015.com \nGEOTRACES-related Session: \n17. Integrating marine observational studies and model developmentConveners: Anne Laerke Soerensen & Lars-Eric Heimbürger \nOn a global scale the primary mercury exposure pathway for humans is via the consumption of marine fish that bioaccumulates methylmercury. The marine production of methylmercury is thought to be related to the bacterial degradation of organic matter and inorganic mercury availability. Anthropogenic mercury emissions have increased the oceanic mercury reservoir\, and thereby lead to increased methylmercury production and human exposure. Models simulating mercury biogeochemistry and transport in the oceans have been developed\, yet few oceanic observations have so far been available to evaluate model performance. Moreover\, marine mercury observations in most oceans have shown large decreases over the past decades. This may be related to decreased anthropogenic mercury inputs to the oceans or to better analytical performances. In this session we would like to confront recent model results with the latest field observations as well as define knowledge gaps and future research needs for combined observation – model assessments. We invite talks concerning mercury cycling and speciation in the oceans\, ideally\, but not limited to model approaches and field data. \n Conference Workshops: \nGEOTRACES Intercalibration exercises for Hg species in seawater discussion forumConveners: Lars-Eric Heimbürger \nMercury is one of the least concentrated elements in the oceans. We need to be able to measure\, understand and interpret variability in mercury concentrations in the ocean\, which is often as low as some 10 percent. We organized international intcalibration exercises for total mercury and total methylmercury determination in sea water collected during the 2013 Dutch GEOTRACES MedBlack cruise (GA04- Black Sea) and the 2014 French GEOTRACES GEOVIDE (GA01- North Atlantic Ocean). Both exercises were intended to primarily evaluate the analytical performance of each participating laboratory. Therefore each laboratory received a single sample bottle of similar size\, that has undergone the same cleaning procedure prior to sampling\, and each sample was preserved in the same manner. The 2013 exercise was intended as a broader screening with a maximum number (25) of participating laboratories. Results indicated substantial disagreement between the participating laboratories\, for both total mercury and methylmercury determinations. For the 2014 exercise we could only invite 10 laboratories. Intercomparability of the second exercise was considerably better\, but needs to be further improved in the years to come. For this workshop we invite the participants of the of those and previous GEOTRACES intercalibration exercises as well as scientists interested in marine mercury and low level measurements. Together\, we will examine the results of both intercalibration exercises in detail\, attempt to explain causes for disagreements\, and develop ideas for future developments to achieve traceable mercury measurements in the oceans.
URL:https://www.geotraces.org/event/12th-international-conference-on-mercury-as-a-global-pollutant/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20150323
DTEND;VALUE=DATE:20150328
DTSTAMP:20260424T164244
CREATED:20140410T125109Z
LAST-MODIFIED:20140410T125109Z
UID:1896-1427068800-1427500799@www.geotraces.org
SUMMARY:3rd International Symposium on "Effects of Climate Change on the World's Oceans"
DESCRIPTION:3rd International Symposium on the Effects of Climate Change on the World’s OceansDates: 23-27 March 2015Location: Santos\, Brazil \n \nFor further information: http://www.pices.int/meetings/international_symposia/2015/2015-Climate-Change/scope.aspx \n \nGEOTRACES-related session: \n \nS3. Changing Ocean Chemistry: From Trace Elements and Isotopes to Radiochemistry and Organic Chemicals of Environmental ConcernCo-chairs: Angelica Peña (Institute of Ocean Sciences\, Department of Fisheries and Oceans\, Canada) and Geraldine Sarthou (LEMAR\, IUEM\, Brest\, France) \n \nPlenary Speaker:Micha Rijkenberg (Royal Netherlands Institute for Sea Research\, The Netherlands) \n \nInvited Speaker:Maeve Lohan (School of Geography\, Earth and Environmental Sciences\, University of Plymouth\, UK) \n \nOcean chemistry has changed during the Anthropocene. International efforts such as GEOTRACES have improved scientific understanding of the marine biogeochemical cycles and distributions of trace element\, isotopes and organic chemicals in the marine environment\, and their synergistic relationships with anthropogenic drivers and climate change. This session invites presentations on assessments and understanding of changes in ocean chemistry including trace elements\, isotopes\, radiochemistry and organic chemicals of environmental concern. Areas of focus include (1) historical and future trends in ocean chemistry and synergistic relationships with marine biogeochemistry and ecosystems; (2) scientific outcomes of recent work on the marine biogeochemical cycles of trace elements\, isotopes\, radiochemistry and organic chemicals\, and measurements of change in ocean chemistry (e.g.\, iron\, mercury\, lead\, organic chemicals\, petroleum\, and plastics); and (3) future challenges facing the study of changes in ocean chemistry associated with anthropogenic drivers and climate change.
URL:https://www.geotraces.org/event/3rd-international-symposium-on-effects-of-climate-change-on-the-worlds-oceans/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20150222
DTEND;VALUE=DATE:20150228
DTSTAMP:20260424T164244
CREATED:20140625T085759Z
LAST-MODIFIED:20140625T085759Z
UID:1912-1424563200-1425081599@www.geotraces.org
SUMMARY:ASLO 2015\, Aquatic Sciences Meeting
DESCRIPTION:ASLO 2015\, Aquatic Sciences MeetingDates: 22-27 February 2015Location: Granada\, Spain \nFor further information: http://www.aslo.org/meetings/index.html \nGEOTRACES sessions: \n142 – Chemical Oceanography/GEOTRACESOrganizer: Andrea Kochinsky\, Jacobs University Bremen. \n \n037 – The Molecular Ecology of Metal-Microbe Interactions in the Ocean EnvironmentOrganizers: Robert Strzepek\, The Australian National University; Maite Maldonado\, The University of British Columbia; and Yeala Shaked\, The Hebrew University in Jerusalem. \nTrace metals are essential for life\, catalysing key cellular reactions such as photosynthesis and nutrient assimilation at the molecular level. The interactions between trace metals and ocean biota are reciprocal: not only do the metals control the productivity and distribution of microbes\, but also these organisms regulate the distributions\, chemical speciation\, and the biogeochemical cycling of these metals. With the advent of new high-resolution geochemical data from the international GEOTRACES program (www.geotraces.org)\, it is timely to consider recent advances in our understanding of the diversity of ways that the ocean biota acquire\, use\, and cycle trace elements in the ocean. There has been an explosive expansion of techniques in analytical chemistry\, molecular biology\, physiology and “omics” that has the potential to develop a mechanistic understanding of trace metal acquisition\, cellular function\, and the interactive effects of metals with changing environmental factors\, such as light\, temperature and pH. This session invites contributions that consider trace metal-biota interactions from a variety of perspectives. Presentations that strive to develop a mechanistic understanding of key cellular processes involving metals are encouraged. \n \nGEOTRACES-relevant sessions: \n \n014 – Atmospheric Deposition Effects in Aquatic Ecosystems Organizers: Francesc Peters\, Institut de Ciéncies del Mar (CSIC)\, Barak Herut\, National Institute of Oceanography\, Adina Paytan\, Institute of Marine Sciences\, Cecile Guieu\, Laboratoire d’oceanographie de Villefranche\, Ana M Aguilar-Islas\, University of Alaska Fairbanks\, Clifton Buck\, Skidaway Institute of Oceanography and Simon Usher\, University of Plymouth. \nAtmospheric aerosols including mineral dust\, anthropogenic particles\, gases and particles from volcanic eruptions\, and biogenic materials are continuously deposited into water bodies throughout the world. The deposition of aerosols into aquatic systems contributes many dissolved and particulate constituents including inorganic nutrients\, organic matter\, trace metals\, toxins\, pollen\, spores\, bacteria and viruses. These inputs change the chemistry and impact the ecosystems of receiving waters\, including the dynamics of phytoplankton and bacteria. The impacts vary considerably depending on the sources\, composition and bioavailability of the aerosols\, the chemical\, biological and ecological characteristics of the receiving water body and the timing of deposition. We welcome contributions studying the effects of aerosols of diverse origin in aquatic systems\, especially in relation to ecosystem dynamics and functioning and the interplay with global changes. Approaches may include experimentation\, observations\, and theoretical and modeling efforts with timeframes comprising from ecological to geological scales.
URL:https://www.geotraces.org/event/aslo-2015-aquatic-sciences-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20141215
DTEND;VALUE=DATE:20141220
DTSTAMP:20260424T164244
CREATED:20140415T092054Z
LAST-MODIFIED:20140415T092054Z
UID:1898-1418601600-1419033599@www.geotraces.org
SUMMARY:American Geophysical Union Fall 2014 Meeting
DESCRIPTION:American Geophysical Union Fall 2014 MeetingDates: 15-19 December 2014Location:  San Francisco\, California\, USA \n \nAbstract deadline: 6 August 2014 \n \nFor more information: http://fallmeeting.agu.org/2014/ \nGEOTRACES sessions: \n \nTrace Element and Isotope Cycling in the Coastal Environment – 40 Years of InnovationsConveners: Greg Cutter and Pete Sedwick \n \nIt could be argued that the first comprehensive treatise on chemical oceanography in coastal environments – estuaries\, salt marshes\, and shelf waters – was found in the 1975 book “Marine Chemistry in the Coastal Environment.” In the almost 40 years since this publication\, tremendous developments in sampling and analytical methods\, treating the coastal zone as a coupled atmosphere\, water column\, and sediment system\, and advanced modeling and simulation approaches have radically changed how we view these environments. Now that global investigations like GEOTRACES of trace elements and isotopes are including ocean margins\, it is timely to discuss the most recent insights into the biogeochemical functioning of the coastal zone. We are soliciting presentations on the cycling of trace elements and isotopes between the atmosphere (aerosols/dry and wet deposition; gas exchange)\, water column\, and sediments of the diverse coastal regime. \n \n-> In point of fact\, this session will be in honor of Dr. Tom Church (who edited the Marine Chemistry in the Coastal Environment book) upon his retirement from the University of Delaware. We will be having a retirement party for Tom the evening of the session as well\, so I encourage you to submit an abstract on any aspect of your work that has\, whether planned or not\, relevance to the broad spectrum of coastal zone research Tom has touched – trace elements\, radionuclides\, atmospheric deposition\, sediments\, water column\, etc. Then come to the party\, which as many of you know from the Hawaii Ocean Sciences Meeting\, I’m good at hosting! \n \nTrace metals and isotopes in the Eastern Tropical South Pacific: Results of the 2013 US GEOTRACES Zonal Transect and complimentary studies  Conveners: Jim Moffett\, Chris German and Martin Frank \n \nThe second US GEOTRACES sectional cruise was staged in 2013: a zonal transect from the Peruvian Coast to the central South Pacific. It included (1) the Peruvian Oxygen Minimum Zone (OMZ)\, (2) a vast oligotrophic region of the upper water column\, and (3) an extensive hydrothermal plume originating from the East Pacific Rise.  Approximately 25 research groups were involved in the cruise\, with samples collected for all key GEOTRACES parameters plus additional redox-sensitive tracers. The objectives were to understand the cycling of trace elements and isotopes in the highly diverse\, overlapping regimes surveyed within the transect.  Submissions are invited from participants in the US GEOTRACES program\, from other programs in the region (e.g. the German SFB754) with complimentary objectives – including related process studies – and from workers who have become involved in any aspects of data synthesis and modelling after the cruise was completed. \n \nGEOTRACES-related sessions: \n \nProductivity Proxies: New Developments and Records  Conveners: Fatima Abrantes\, Bob Anderson and Heather Stoll \nThe role of the ocean in the global carbon cycle is greatly mediated by microorganisms through primary productivity and C export\, the so-called biological pump. Understanding the sensitivity of the process and quantifying C export variability associated with past climatic conditions is fundamental to forecast how primary productivity may respond to the changing conditions generated by a CO2 increase in the atmosphere. To help reconstruct the response of the biological pump to past perturbations in forcing we need reliable\, varied and independent proxies for: the oceanic physical state\, nutrient availability and utilization\, primary production and export\, and\, burial conditions. Many have been proposed through the years; however\, problems with their utilization have also been identified. The plan for this session is to attain an overview of the recent progress in the creation of primary productivity related proxies\, as well as recently generated past records. \n \n-> Many of the trace elements and isotopes studied by GEOTRACES have been exploited as proxies of past changes in ocean biological productivity\, nutrient utilization and water chemistry. We encourage presentations on the development\, testing and application of these proxies. \n \nBiogeochemical cycling of silicon in coastal transition zonesConveners: Claudia Ehlert\, Patricia Grasse\, Daniel J Conley and Mark A Brzezinski \n \nThis session focuses on the bio(geo)chemical cycling of silicon between sources\, sinks and within the dynamic transition zones\, associated with the transformation of Si during transport from the freshwater to the marine environment. There are large variations in Si cycling in rivers and in estuaries\, in the contributions of groundwater and pore water discharge to Si cycling in coastal regions\, and within coastal zones themselves that result in large uncertainties in the global budget of silicon and in whether the silicon cycle in the ocean is in steady state. While this session emphasizes on the silicon cycle\, other data (e.g. trace elements like cadmium\, zinc\, iron\, aluminum\, etc) that elucidate the main processes and interactions between macro- and micro- nutrients within transition zones are also welcome. We explicitly solicit contributions from both isotope analyses as well as concentration studies with a focus on field study results. \nThe Biogeochemical Cycling of Mercury in the Coastal and Open OceanConveners: Robert P Mason and Arthur Russell Flegal \n \nThe ocean plays an important role in the global mercury cycle being the long-term sink for mercury emitted to the atmosphere\, and air-sea exchange influences its residence time in the biosphere. Ocean fish are the major route for human exposure to methylmercury\, an important health concern. Many processes are involved in the transformation of inorganic mercury to methylmercury asnd there is still uncertainty concerning the primary locations of its net methylation and bioaccumulation. The focus of this session is therefore presentations concerning mercury inputs into the marine environment\, and the factors influencing the transformation (methylation\, demethylation\, oxidation and reduction)\, both biotic and abiotic\, and fate in coastal and offshore waters\, and methylmercury bioaccumulation into the marine food chain. Papers describing new laboratory studies\, field investigations and/or modeling in coastal and offshore environments are welcome\, as are papers using stable isotope signatures or other innovative approaches\, or exploring global change implications. \n \nPast Ocean DynamicsConveners: Joerg Albert Lippold\, Luke Skinner and Sam Jaccard \n \nThe oceans have played a major role in amplifying past climate variability and causing shifts between regional\, and perhaps global\, climate states. In particular the meridional overturning circulations play an instrumental role in climate variability on a range of time scales\, by storing and redistributing heat\, fresh water\, carbon and nutrients.Trace-element and isotope geochemistry (including radiocarbon) are powerful tools to constrain past changes in the distribution of water masses as well as the dynamics of past ocean circulation However\, consensus on the occurrence\, intensity and precise timing of past variations in the large-scale overturning circulation rate\, for example during past abrupt or glacial-interglacial climate change\, remains lacking. For this session we invite contributions addressing past ocean circulation change on millennial to glacial/interglacial timescales. We particularly encourage contributions involving inter-proxy comparisons and/or that integrate proxy data and models toward a quantitative understanding of past ocean circulation dynamics. \n 
URL:https://www.geotraces.org/event/american-geophysical-union-fall-2014-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20141027
DTEND;VALUE=DATE:20141101
DTSTAMP:20260424T164244
CREATED:20140512T081228Z
LAST-MODIFIED:20140512T081228Z
UID:1902-1414368000-1414799999@www.geotraces.org
SUMMARY:24th Earth Sciences meeting
DESCRIPTION:24th Earth Sciences meetingDates: 27-31 October 2014Location: Pau\, France \nFor futher information: http://rst2014-pau.sciencesconf.org \nGEOTRACES related sessions: \nSession 8.7 Biogeochemical cycling of contaminants in the ArcticOrganizers: Lars-Eric Heimburger (GET\, Toulouse\, France) and Aurélien Dommergue (LGGE\, Grenoble\, France) \nAbstract: In the past fifteen years\, a new instrumentation has opened the door to the analysis of stable isotopes of light elements such as non-traditional Li\, Mg or Ca\, but also and mainly transition elements such as Fe\, Cu\, Zn or other heavier elements. Biogeochemical processes are responsible for some of the most important isotopic composition variations among those identified so far for these elements. The ability to unravel processes controlling the mobility\, bioavailability and biogeochemical cycling of essential and potentially toxic elements in the terrestrial environment has become a hot scientific topic. This session is an opportunity to make an updated inventory on the use of the isotopic composition of these elements and to show the latest developments\, especially in the biogeochemical field. \n  \nSession 8.5: Advances in mercury biogeochemistryOrganizers: Jeroen Sonke (GET\, Toulouse) and David Amouroux (LCABIE\, IPREM\, Pau) \n \nAbstract: Half a century of mercury research has provided scientists and policy makers with detailed understanding of mercury toxicology\, biogeochemical cycling and past and future impacts on human exposure. The complexity of the global biogeochemical mercury cycle has led to repeated and ongoing paradigm shifts in numerous mercury related disciplines and outstanding questions remain. In this session we invite contributions that target those outstanding questions on the biogeochemical cycling of mercury. \n 
URL:https://www.geotraces.org/event/24th-earth-sciences-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20140728
DTEND;VALUE=DATE:20140802
DTSTAMP:20260424T164244
CREATED:20140109T101750Z
LAST-MODIFIED:20140109T101750Z
UID:1891-1406505600-1406937599@www.geotraces.org
SUMMARY:AOGS 2014\, Asia Oceania Geosciences Society Annual Meeting
DESCRIPTION:Asia Oceania Geosciences Society 11th Annual Meeting (AOGS 2014)Dates: 28 July to 01 August\, 2014Location: Sapporo\, Hokkaido (Japan)Abstract deadline: 11 February 2014 \n \nFor further information: http://www.asiaoceania.org/aogs2014/public.asp?page=home.htm \nGEOTRACES sessions: \n \n*OS01: Trace elements and their isotopes in the ocean: GEOTRACES activities in Asia and Oceania \nMain Convener: Dr. Yoshiki Sohrin (Kyoto University\, Japan) \nCo-convener(s): Dr. Tung-Yuan Ho (Academia Sinica\, Taiwan)\, Dr. Pinghe Cai (Xiamen University\, China)\, Prof. Man Sik Choi (Chungnam National University\, Korea\, South). \n \nOceanic trace elements and their isotopes (TEIs) are promising tracers and proxies for important geochemical and biogeochemical processes in the modern and ancient oceans. The global distributions of TEIs have been extensively studied during the past decade\, mostly attributed to the sponsorship and support of an active international program\, GEOTRACES. Some of the TEIs data obtained at crossover stations by different research groups globally have already been intercalibrated and validated by GEOTRACES committee and the validated data will be reported in the Intermediate Data Product in early 2014. The contributions of Asian and Oceania countries to GEOTRACES related studies would be essential for the success of GEOTRACES programme. This session aims to bring together GEOTRACES related studies in Asia and Oceania to enhance and promote the related research in the region. Contributions from other regions are also welcome.
URL:https://www.geotraces.org/event/aogs-2014-asia-oceania-geosciences-society-annual-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20140608
DTEND;VALUE=DATE:20140614
DTSTAMP:20260424T164244
CREATED:20130731T093642Z
LAST-MODIFIED:20130731T093642Z
UID:1874-1402185600-1402703999@www.geotraces.org
SUMMARY:Goldschmidt 2014
DESCRIPTION:Goldschmidt 2014  Dates: 8-13 June 2014Location: Sacramento\, California\, USA \nFor further information: http://goldschmidt.info/2014/index \nGEOTRACES Town Hall: \n \nGEOTRACES Intermediate Data Product  (Included in the student events programme)Tuesday 10th June 12:30-14:00  Location: Restaurant\, Cafeteria 15L (View on map) – Capacity 100 persons. \n \nThe first GEOTRACES intermediate data product is now freely available on-line. The nature of the data made available\, the data policy\, and the procedure to access the data will be described. GEOTRACES (www.geotraces.org) is an international study of the marine biogeochemical cycles of trace elements and their isotopes. 654 stations (50 cruises) have been sampled resulting in 800 data sets. A question and answer session will follow a presentation of selected results and new data visualization tools. \nLunch boxes will be provided to the first 50 student participants and USB sticks containing the eGEOTRACES Atlas will be offered to the first 80 participants. \n  \nGEOTRACES sessions: \n \n17e: Trace Elements\, Microbes\, and Biogeochemical Cycles in the Ocean EnvironmentCo-convenors: Kathy Barbeau\, Maite Maldonado\, Benjamin Twining \n \nThe relationships between trace metals and biota in the oceans are interactive\, wide-ranging and can be perceived at molecular to ecosystem scales\, with multiple connections to and consequences for the biogeochemical cycling of carbon and nitrogen. Developments in this field are being led by advances in analytical chemistry\, nanotechnology\, molecular biology\, and bioinformatics as well as the expansion of ‘omics’-related observations of in-situ microbial communities and the advent of expansive new high resolution geochemical data sets via the international GEOTRACES program (www.geotraces.org). This session invites contributions which highlight trace metal-biota interactions and trace metal biogeochemistry in the oceans from a variety of perspectives. Presentations that include observations from ocean transects\, process studies\, laboratory or field-based incubation experiments and integration into models are encouraged. \n \n16g: Sources\, sinks and stores: integrating isotope and geochemical proxies for past and present surface processes\, from elementary reactions to global changeCo-convenors: Tim Conway\, Penelope Lancaster\, Damien Lemarchand\, Sunil Singh\, Sambuddha Misra \n \nInteractions between water and rock control the chemistry of surface waters as well as the sedimentary and oceanic geochemical budget over a range of time scales\, with global implications for pressing environmental and energy questions. Recent improvements in high resolution analytical tools\, especially geochemical and isotopic techniques by multi-collector ICP-MS\, have advanced our understanding of these critical processes in disciplines as diverse as the ultra-low concentration constituents of seawater\, the provenance of sediments and the mechanisms of chemical and physical weathering. This session invites state-of-the-art contributions which address critical uncertainties in our ability to interpret the recent abundance of geochemical data in three key areas: 1) Production and transport of sediments\, including new isotopic and geochemical proxies for weathering rates (non-traditional stable isotopes like Li\, Be\, B\, Mg\, Ca\, Si\, Fe\, Mo\, U- and Th-series\, isotopologues etc.); 2) isotopic and elemental fluxes to\, from and within the ocean\, and their influence on the composition of marine sediments and seawater dissolved isotope budgets (modeling/datasets focusing on novel marine isotope systems e.g. Cu\, Cd\, Zn\, Fe\, Ni etc.\, especially studies from the GEOTRACES program); and 3) interpreting sedimentary records\, particularly studies which link highly-sophisticated single-grain analyses of heavy minerals (zircon\, rutile\, apatite\, feldspar) to provenance and transport of sediment from source to sink. \n \nGEOTRACES-related sessions: \n \n14e: Climate and Biogeochemistry of Cryosphere EnvironmentsCo-convenors: Lori Ziolkowski\, Amy Townsend\, Ashley Dubnick\, Anders Carlson\, Sarah Aciego\, Alexandre Anesio\, Jill Mikucki \n \nGrowing observations indicate dramatic changes in the cryosphere. The cryosphere includes frozen environments derived from sources of freshwater (glacial and ice-sheet ice\, snow\, lake ice)\, salt water (sea ice\, ice shelves\, saline lakes) and soil (permafrost). In this session we focus on three important aspects of the cryosphere: • Ice sheets as agents that influence sea level\, and regional to global climate on orbital\, millennial\, centennial and anthropogenic timescales. Their dynamics need to be understood in the context of past climate changes; we will present new research across geomorphology\, glaciology\, geochemistry and oceanography that link paleoclimate information with ice sheet extent\, volume\, subglacial environments and regional and global climate change. • The history and ultimate fate of carbon released from arctic and alpine environments with implications for climate feedbacks in a warming world. We will present new research at the intersection of atmospheric\, oceanic and terrestrial chemistry including novel analytical techniques\, modeling and field measurements that study the carbon cycling of arctic and alpine environments. • Microbial organisms that have survive long-term encasement in an ice matrix and\, in some cases\, adapted to metabolize and even thrive within the ice. Evidence for their ability to influence the formation and decay of icy interfaces and to play important roles in the cycling of carbon and other climate is increasing. The inhabitants of Earth’s cryosphere also provide model systems for considering the evolution of life during Snowball Earth and possible analogs for life on other icy planets and moons. This session will bring together biologists\, biogeochemists\, glaciologists and astrobiologists to debate the most recent advances in understanding the habitation of ice on Earth — past\, present and possibly beyond. \n \n17a: Natural and Anthropogenic Impacts on Ocean Chemistry (Nutrients\, Oxygen and the Biological Pump)Co-convenors: Cecile Guieu\, Linn Hoffman\, Martha Gledhill\, Jay Cullen \nThe colloidal phase of estuarine and marine waters\, the interface between truly soluble and particulate matter\, remains one of the greatest enigma’s in the study of marine biogeochemistry. Methods for studying this phase are operational and for the most part differ among studies\, so with few exceptions then there are no means for quantitatively comparing findings. The colloidal phase itself comprises organic and inorganic materials\, and it seems clear that the relative distribution of these phases changes spatially and temporally\, even in oceanic environments. Sources comprise terrestrial outflow\, aerosols (either direct or indirect)\, and in-situ processes. Although in some cases colloid aggregation has been demonstrated to facilitate the removal of “dissolved” substances\, it also appears able to buffer truly soluble essential metals for phytoplankton growth (e.g.\, Fe). The aim of this session is to bring together those working on all aspects of marine-related colloids to gain a better understanding of our current state of knowledge of the marine colloidal phase. We particularly encourage presentations on the sources and processes affecting colloidal abundance and composition\, and their effects on marine biogeochemical cycles. \n \n17g: Hydrothermal Vents: Controls and Influences – Nano-Scale to Global – On Earth and BeyondConvenors: Emma A. A. Versteegh\, Kathrin Streit\, Max Coleman \n \nDeep-sea hydrothermal vents are hot spots for geochemical interactions. They have complex tectonic and structural controls\, and in turn influence physical and biological processes on a wide range of spatial scales. These systems have been increasingly intensively studied since their discovery 37 years ago\, and much scientific progress was made in recent years. Technical developments continuously improve our ability to investigate these extreme environments. Geochemists with diverse scientific backgrounds have made major contributions to our understanding of hydrothermal vent systems. This session aims to bring together these researchers\, working at any of the relevant spatial scales on all aspects of hydrothermal vent geochemistry. Potential topics might include but are not limited to\, the role of vents in global geochemical cycles (e.g. C\, S and Fe)\, tectonic and structural controls on hydrothermal circulation and water-rock interaction\, rock\, and fluid chemistry\, and the spectrum of ecosystems they support. We also encourage contributions looking at the potential significance of hydrothermal vents in the origin of life and in astrobiology\, for example\, habitability and potential biosignatures on the moons of the Outer Planets. \n \n19c: The Biogeochemical Cycling of the Nutrients N\, P and Si: Terrestrial and Marine Insights for the Present\, Past and FutureCo-convenors: Karen Casciotti\, Troy Baisden\, Gabriel Filippelli\, Mak Saito \n \nNutrients (e.g.\, Nitrogen\, Phosphorous and Silicon) underpin vital processes within Earth’s ecosystems. In modern-day systems\, these nutrient cycles exhibit complex\, non-linear dynamics. Paleo-studies of nutrient cycles also suffer from this complexity\, combined with imperfect geochemical preservation of evidence. New developments in biogeochemistry are improving our ability to describe nutrient dynamics in contemporary systems\, and when combined with models\, may also improve our ability to interpret the past and predict future responses of nutrients to global change. We consider both biologically-mediated nutrient cycles as well as cycles with competing biotic and abiotic regulation of sources or sinks. This theme encourages insights describing how biogeochemical nutrient dynamics can be understood in the face of apparent complexity\, and applied to global changes in the past or future. \n \n19f: Biogeochemical Processes Influencing Mobilization\, Transformations\, and Bioavailability of MercuryCo-convenors: Helen Hsu-Kim\, Nathan Yee\, Andrew Graham \n \nMercury is a global pollutant and a neurotoxin that presents significant risks for human health. Solutions to the mercury problem can be difficult\, due to the complex array of processes that ultimately lead to food web accumulation of this element in the form of monomethylmercury. This session will focus on the biogeochemical processes that influence the geochemical speciation of mercury\, transport in the environment\, and bioaccumulation. Specific topics include photochemical transformations\, redox-related processes\, biochemical pathways involved in net methylmercury production\, and the consequences of climate change on the global Hg cycle.
URL:https://www.geotraces.org/event/goldschmidt-2014/
CATEGORIES:GEOTRACES Relevant Special Sessions
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20140601
DTEND;VALUE=DATE:20140607
DTSTAMP:20260424T164244
CREATED:20130611T102909Z
LAST-MODIFIED:20130611T102909Z
UID:1864-1401580800-1402099199@www.geotraces.org
SUMMARY:International Conference on Atmospheric Dust
DESCRIPTION:International Conference on Atmospheric DustDates: 1-6 June 2014Location: Castellaneta Marina\, Italy \n \nFor futher information: http://www.dust2014.org \n \nGEOTRACES relevant sessions:  \n \nDust in the Sea — Impact on Biogeochemistry and ClimateChristel S. Hassler – Université de Genève – CHVéronique Schoemann – Université Libre de Bruxelles – BEDust laden nutrients deposited in surface waters affect phytoplankton with impact for their primary productivity\, biomass and biodiversity. Primary productivity is a critical step for climate regulation. Given that iron limits primary productivity in up to 30 % of the ocean and that most of the dust being deposited bear a significant amount of iron\, its solubility\, reactivity and bioavailability are actively studied. Such research goals are part of the GEOTRACES international science program. In order to improve our understanding of the links between continental dust\, the ocean and the carbon cycle\, this session welcomes contributions on the fate of elements delivered by atmospheric dust to the ocean\, their bioavailability and their implication for the primary productivity. As the consequences from global change on dust deposition and atmospheric processing remain unknown\, contributions on the global impact of dust oceanic deposition nowadays but also in the future are also welcome.
URL:https://www.geotraces.org/event/international-conference-on-atmospheric-dust/
CATEGORIES:GEOTRACES Relevant Special Sessions
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20140223
DTEND;VALUE=DATE:20140301
DTSTAMP:20260424T164244
CREATED:20120305T091713Z
LAST-MODIFIED:20120305T091713Z
UID:1783-1393113600-1393631999@www.geotraces.org
SUMMARY:2014 Ocean Sciences Meeting
DESCRIPTION:2014 Ocean Sciences Meeting Dates: 23-28 February 2014Location: Honolulu\, HI\, USA. \nFor more information: http://www.sgmeet.com/osm2014/default.asp \nGEOTRACES-Town Hall Meeting: \nGEOTRACES Intermediate Data ProductDate: Tuesday\, February 25\, 2014 Time: 12:45:00 PM \nThe GEOTRACES program will publicly release its first data product. The nature of the data to be made available\, the data policy\, and the procedure to access the data will be described. GEOTRACES (www.geotraces.org) is an international study of the marine biogeochemical cycles of trace elements and their isotopes. 618 stations (49 cruises) have been sampled resulting in 800 data sets. A question and answer session will follow a presentation of selected results and new data visualization tools \nGEOTRACES-Relevant Sessions: \n018 – Advancing the frontiers of the Si cycle in terrestrial\, coastal\, and open ocean ecosystems \nOrganizers: Paul Treguer\, European Institute for Marine Studies; Joanna Carey\, U.S. Environmental Protection Agency; Mark Brzezinski\, Marine Science Institute\, University of California; Christina De La Rocha\, European Institute for Marine Studies; Robinson Fulweiler\, Boston University; Manuel Maldonado\, Centro de Estudios Avanzados de Blanes. \nRecent work in a variety of systems and across a range of spatial scales has shown that the silicon (Si) cycle is unexpectedly dynamic and perhaps far from steady state. These new findings also highlight many unknowns. It is now recognized that terrestrial vegetation plays a critical role in the recycling of biogenic Si (BSi) and the ultimate flux of Si to the coastal ocean. However\, these land-to-sea pathways are poorly constrained and we know little about how human activities directly alter the magnitude and timing of Si transport to the ocean. Additionally\, atmospheric Si deposition remains largely un-quantified. Within marine systems\, rates of BSi production\, dissolution\, and export by non-diatoms (e.g.\, sponges\, radiolarians\, and some cyanobacteria) are inadequately known\, as are rates of Si effluxes from hydrothermal vents. Moreover\, we lack data on rates of reverse weathering and low temperature basalt dissolution on continental margins and in the deep sea. This session will address key issues related to the biogeochemical cycling of Si\, including magnitude and rates of Si cycling in previously understudied reservoirs of the biosphere. We welcome contributions from terrestrial and aquatic systems\, including\, but not limited to\, rivers\, wetlands\, estuaries\, continental margins\, and the deep sea. \n  \n037 – Dynamics of Coupled Processes in the Ocean: A tribute to the career of Dr. James Murray \nOrganizers: Laurie Balistrieri\, USGS/UW Oceanography; Kathryn Kuivila\, USGS; Hans Jannasch\, MBARI \nWorking on research issues that cross discipline boundaries and involve multidisciplinary teams is both challenging and rewarding. Many of the fundamental science issues of our day\, such as climate change\, ocean acidification\, and human impacts on coastal oceans\, require researchers to bridge traditional disciplines and collectively work to synthesize a broader understanding of complex earth system processes at diverse scales. This session intends to bring together scientists who work on understanding the dynamics of coupled processes in the oceans\, provide opportunities for enhanced and new collaborations\, and pay tribute to the career of Dr. James Murray upon his retirement. The focus of his career has been interdisciplinary research in chemical oceanography and aquatic chemistry\, and we invite contributions from researchers involved in Dr. Murray’s main areas of research in coastal and open oceans: Particle reactive chemical tracers of biogeochemical processes; Role of iron and other metals in controlling food-web structure and new production; Carbon\, nitrogen\, and metal cycling across redox boundaries in sediments and water columns; Links among climate change\, ocean acidification\, and fossil fuel/energy supplies. \n  \n080 – Biogeochemistry of Trace Elements and their Isotopes \nOrganizers: Rob Middag\, University of Otago; Alessandro Tagliabue\, University of Liverpool; Peter Sedwick\, Old Dominion University; Claudine Stirling\, University of Otago; Andrew Bowie\, University of Tasmania; Jingfeng Wu\, University of Miami. \nTrace elements and their isotopes (TEIs) are critically important in regulating ocean biology\, as tracers of oceanic processes\, and as paleoceanographic tools. The past decade has seen major advances in our understanding of the distribution\, cycling\, and biogeochemical function of TEIs in the ocean\, afforded by the first basin-scale surveys completed as part of the CLIVAR and GEOTRACES programs\, and by concurrent advances in chemical and isotopic analysis\, numerical modeling and molecular biology. In this session\, we invite contributions that address the biogeochemical cycling of TEIs in the ocean\, with three main themes: (1) the distribution and physico- chemical speciation of TEIs in the ocean\, including results from recent GEOTRACES field activities and intercalibration efforts; (2) the exchange of TEIs between the lower atmosphere and the upper ocean; and (3) parallel studies of TEIs that inform our understanding of key regulatory processes\, including their input\, speciation\, biological cycling and removal. \n  \n092 – From VERTEX to GEOTRACES: honoring Ken Bruland’s contributions to marine biogeochemical cycles \nOrganizers: Gregory Cutter\, Old Dominion University; Ana Aguilar-Islas\, University of Alaska; Kristen Buck\, Bermuda Institute of Ocean Sciences; William Landing\, Florida State University; Maeve Lohan\, Plymouth University. \nStudying marine biogeochemistry requires highly interdisciplinary approaches that include multiple stable and radioactive elements\, appropriate analytical methods to reveal concentrations and chemical speciation\, collection methods to distinguish size fractionation\, and of course tight coupling with biological investigations. One of the leaders in marine biogeochemistry is Ken Bruland who started developing his pioneering methods in the mid 1970s\, refined them in the VERTEX cruises of the early 1980s\, and has continued changing biogeochemical paradigms into the present day GEOTRACES program. In honor of his retirement\, this session seeks presentations on\, or approaches to\, studying marine biogeochemical processes. These can range from bacteria to radionuclides\, trace to major elements\, atmosphere to sediments\, estuaries to the open ocean\, and present-day to paleoceanographic processes. \n  \n114 – Application of natural and anthropogenic radionuclides to the study of ocean processes \nOrganizers: Matt Charette\, WHOI; Marcus Christl\, ETH Zurich; Nuria Casacuberta\, ETH Zurich; Ken Buesseler\, WHOI. \nThe goal of GEOTRACES is to identify processes and quantify fluxes that control the distribution of trace elements and isotopes (TEIs) in the ocean\, and to establish the sensitivity of these distributions to changing environmental conditions. Natural uranium/thorium series\, anthropogenic and cosmogenic radionuclides\, with their in-built clocks\, their different input functions\, and contrasting geochemical properties and biological affinities are essential tools for interpreting lateral and vertical TEI distributions in the ocean. This session will focus on international GEOTRACES and other marine studies that employ radionuclides to quantify TEI particle cycling rates and fluxes\, land-derived inputs (e.g. groundwater\, rivers)\, bottom boundary layer processes (e.g. sediment resuspension\, hydrothermal vents) and atmospheric inputs. We further invite submissions on anthropogenic tracers from all compartments of the oceans (sea water\, sediments\, corals\, biota\, etc.)\, including studies that may help constrain or trace accidental (e.g. Chernobyl\, Fukushima) or authorized (e.g. nuclear reprocessing plants) releases into the ocean. Contributions related to observational studies and modeling applications are welcome\, as well as presentations on novel developments in radionuclide detection and sampling in the environment. \n  \n116 – Advances in approaches to assess metal-binding organic ligands and perspectives on the impacts of ligands on metal-biota interactions in the oceans \nOrganizers: Maeve Lohan\, University of Plymouth; Kristen Buck\, Bermuda Institute of Ocean Sciences; Sylvia Sander\, University of Otago. \nThe bioactive trace metals iron (Fe)\, copper (Cu)\, cobalt (Co)\, nickel (Ni)\, zinc (Zn) and cadmium (Cd) are essential micronutrients for marine phytoplankton and exert a major influence on the global carbon and nitrogen cycles. Fully understanding the marine carbon and nitrogen cycles is\, thus\, intimately tied to our efforts to determine the distribution\, chemical speciation and resulting bioavailability of trace metals to the marine biota. Complexation of these metals by organic ligands may enhance or reduce bioavailability depending upon the metal-ligand complex formed. Yet\, we know little about the composition\, source and provenance of metal-binding ligands\, which is hindering further advances in the field of trace metal biogeochemistry. New and fruitful collaborations between trace metal biogeochemists\, organic geochemists and biogeochemical modelers are being achieved through a SCOR working group (WG139) “Organic Ligands-A key control on trace metal cycling in the ocean”. We invite submissions to this session that highlight recent accomplishments in metal-binding ligand characterization and in approaches for assessing ligand distributions\, composition\, sources\, cycling processes\, and impacts on metal- biota interactions in the oceans. \n  \n146 – Marine micronutrient trace element cycling in oxygen minimum zones \nOrganizers: David Janssen\, University of Victoria; Maija Heller\, University of Southern California; Christina Schallenberg\, University of Victoria. \nThis session aims to further the understanding of the chemical speciation and biogeochemical cycling of micronutrient trace elements and macronutrients and their isotopes in ocean oxygen minimum zones (OMZs). Redox cycling of trace metals (e.g. Fe\, Cu\, Mn\, Co) and other aqueous species (e.g. SO42-/S2-) is known to significantly influence marine trace metal solubility and bioavailability. A growing body of data from OMZ waters\, through efforts such as the international GEOTRACES program\, illustrates the potential control of oxygen minima on regional and basin scale distributions of trace metals. Model projections predict that oxygen minima will intensify and will expand in spatial extent due to global climate change. Therefore\, increasing our understanding of the influence that oxygen minima exert on trace metal and macronutrient cycling and bioavailability is essential for explaining current and future oceanic distributions of bioactive trace metals and isotopes. This session welcomes contributions discussing the redox cycling\, sources\, sinks and speciation of trace elements and macronutrients and their isotopes in OMZ waters. \n  \n060 – Submarine Groundwater Discharge – from Ridge to Reef: Groundwater Evolution\, Climate\, Land-Use\, Coastal Hydrology and Marine Biogeochemical Impacts \nOrganizers: Steven Colbert\, University of Hawaii Hilo; Henrieta Dulaiova\, University of Hawaii; Craig R. Glenn\, University of Hawaii; Jason Adolf\, University of Hawaii \nSubmarine groundwater discharge (SGD) is now recognized as a significant source of biogeochemically important components to the coastal ocean. Groundwater discharge studies in diverse coastal systems are vitally important to establish baseline characteristics of current SGD behavior and its implications on coastal biogeochemistry before we can anticipate future effects of climate change\, sea level rise\, and population increase. This session invites presentations (both oral and poster) on 1) upstream processes that influence SGD from the land\, such as rock-water interactions\, watershed studies that examine natural and anthropogenic controls on groundwater recharge\, transport and composition\, including climate\, hydrogeology and land use; 2) measurement and modeling of SGD that reveal its spatial and temporal variability\, physicochemical properties\, as well as biogeochemical processes within the subterranean estuary; and 3) downstream coastal effects of SGD\, including biological response\, biogeochemistry\, chemical budgets of elements\, contaminant fates\, and coastal zone management. We seek to better understand the interplay between all of these factors\, and all contributions related to submarine groundwater discharge origins\, transformations\, fates and impacts of are welcome.
URL:https://www.geotraces.org/event/2014-ocean-sciences-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20130911
DTEND;VALUE=DATE:20130914
DTSTAMP:20260424T164244
CREATED:20131008T130248Z
LAST-MODIFIED:20131008T130248Z
UID:1877-1378857600-1379116799@www.geotraces.org
SUMMARY:2013 Japan Association of Mineralogical Sciences Annual Meeting
DESCRIPTION:2013 Japan Association of Mineralogical Sciences Annual MeetingDates: 11-13 September 2013Location: University of Tsukuba\, Japan. \nFor further information: http://jams.la.coocan.jp/e_index.html \nGEOTRACES-relevant Sessions: \nTrace metals and their isotopes in the oceanCo-conveners: H Obata\, J Zhang\, K Norisuye and K Horikawa. \n 
URL:https://www.geotraces.org/event/2013-japan-association-of-mineralogical-sciences-annual-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20130825
DTEND;VALUE=DATE:20130831
DTSTAMP:20260424T164244
CREATED:20120305T093622Z
LAST-MODIFIED:20120305T093622Z
UID:1784-1377388800-1377907199@www.geotraces.org
SUMMARY:Goldschmidt 2013
DESCRIPTION:Goldschmidt 2013   Dates:   25-30 August 2013 Location: Florence – Italy  \nFor further information: http://goldschmidt.info/2013/index \n  \nGEOTRACES Relevant Special Sessions: \n \n* 16h. Chemical Weathering in Marginal EnvironmentsConvenors: Bernhard Peucker-Ehrenbrink and Morgan JonesKeynote: Catherine Jeandel (LEGOS\, Toulouse) \nThis session aims at focusing on chemical weathering processes not taking place in the soils but in deeper aquifers\, in floodplains\, in estuaries and in marine sediments. It is of particular importance to evaluate the diversity of processes at play and their quantitative importance. Is our view of the global chemical weathering picture or global carbon cycle significantly modified when these marginal weathering environments are taken into account? \n \n*17a. The ins and outs of mud: chemical fluxes between sediments and seawaterConvenors: Silke Severmann and Rachel Mills Keynote: Ronnie N. Glud (University of Southern Denmark) \nMarine sediments are the ultimate sink for many constituents in seawater\, but this flux is significantly moderated at the seafloor before burial. Solute exchange between marine sediments and the overlying water column is occurring throughout the ocean basins. Elemental mass fluxes operate in both directions\, often with profound effects on the local or global seawater chemistry. Rates of exchange are sensitive to various internal and external forcing mechanisms that operate on seasonal to geological time scales. In the shelf seas the benthic boundary layer communicates with the surface ocean through upwelling and mixing\, thus providing a feedback between primary productivity and benthic respiration. Seafloor exchange in the deep ocean can contribute significantly in terms of the element’s global mass balance. Microbial processes are important drivers for many of these exchange processes in shallow and deep-sea sediments. \nTechnical innovations have led to improved quantification of these fluxes in the modern ocean\, while development of novel paleo-proxies provide new insight into changes in the nature and rate of benthic-pelagic exchange over longer time scales. This session invites contributions that examine the process regulating benthic exchange\, as well as techniques to quantify these fluxes on a variety of time scales. \n \n* 17b. Constraining rates of ocean processesConvenors: Laura Robinson and Matt Charette Keynote: Bill Jenkins (WHOI) \nImportant physical\, chemical\, and biological processes in the ocean occur over a wide range of timescales from seconds up to millennia. Geochemical tracers provide tools to assess the rates and timescales of these processes. For example radiocarbon\, nuclear bomb test products and long-lived U-series isotopes have been used to look at oceanic overturning circulation rates. Radiogenic thorium has been used to quantify fluxes of particles (and carbon) through the water column and to the seafloor\, and radium has been used examine the extent of lateral advection from the continents to the ocean interior. These and other traditional and novel approaches provide insight into ocean mixing and biogeochemical cycling processes central to the ocean’s interaction with the Earth system as a whole. In this session we welcome contributions that use geochemical approaches to examining the rates of oceanic processes both in the modern ocean and in the past. Invited speakers – Bob Anderson and Pieter Van Beek. \n \n*17d Isotope geochemistry of the modern oceansConvenors: Seth John \, Julie Granger\, Katharine Pahnke and Gregory F. de SouzaKeynote: Curtis Deutsch (University of Washington) \nIsotopic tracers are a powerful tool for studying the balance between physical circulation and biogeochemical processes that govern the cycling of elements within the global ocean. While the impact of the large-scale circulation on the marine distribution of radiogenic isotopes has long been recognized\, the recent increase in measurements of stable isotopes in seawater has made it also possible to observe interactions between circulation and stable isotope distributions. This session aims to bring together these two fields by encouraging contributions pertaining to stable isotope constraints on the cycling of globally important macro- and micronutrients (e.g. nitrate δ15N\, nitrate δ18O\, δ30Si\, δ56Fe\, δ114Cd)\, as well as isotopic proxies that trace ocean circulation pathways (e.g. εNd). To this end\, we explicitly solicit contributions from both the modeling and observational communities. While this session emphasizes isotopic tracers\, other data (e.g. trace elements) that elucidate the interactions between physical circulation and biogeochemical processes governing marine elemental distributions in the modern or past ocean are also welcome. \n*17g Metal-biota interactions in seawaterConvenors: Jay Cullen\, Maeve Lohan and Martha GledhillKeynote: Mak Saito (Woods Hole) \nRecent advances in analytical chemistry and molecular biological techniques indicate that trace metal micronutrients play an important role in regulating the species composition and physiological rate processes of the marine microbial community. Fully understanding the marine carbon and nitrogen cycles is thus intimately tied to our efforts to determine the distribution\, chemical speciation and resulting bioavailability of trace metals to the marine biota. New and fruitful collaborations between chemical oceanographers and microbial physiologists are being achieved through\, for example\, high spatial resolution data as obtained via the ongoing international GEOTRACES program (www.geotraces.org). We invite submissions to this session which highlight trace metal-biota interactions and the complex interlacing of geochemical\, physiological and ecological maps which shape the tempo and mode of carbon and nitrogen transformations in the ocean. \n​
URL:https://www.geotraces.org/event/goldschmidt-2013/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20130804
DTEND;VALUE=DATE:20130810
DTSTAMP:20260424T164244
CREATED:20130402T114014Z
LAST-MODIFIED:20130402T114014Z
UID:1849-1375574400-1376092799@www.geotraces.org
SUMMARY:The 2013 Gordon Research Conference on Chemical Oceanography
DESCRIPTION:The 2013 Gordon Research Conference on Chemical OceanographyDates: 4-9 August 2013Location: University of New England\, in Biddeford\, Maine\, USA \nApplication Deadline: 7 July 2013 \nFor further information: http://www.grc.org/programs.aspx?year=2013&program=chemocean
URL:https://www.geotraces.org/event/the-2013-gordon-research-conference-on-chemical-oceanography/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20130624
DTEND;VALUE=DATE:20130629
DTSTAMP:20260424T164244
CREATED:20130515T091915Z
LAST-MODIFIED:20130515T091915Z
UID:1862-1372032000-1372463999@www.geotraces.org
SUMMARY:AOGS 2013\, Asia Oceania Geosciences Society Annual Meeting
DESCRIPTION:2013 Asia Oceania Geosciences Society Annual Meeting (AOGS2013)Dates: 24-28 June 2013Location: Brisbane\, Australia \nFor futher information: http://asiaoceania.org/aogs2013/public.asp?page=home.htm \nGEOTRACES Relevant Session: \nControls on the Biogeochemistry of the Northwestern Pacific Ocean and its Adjacent Marginal SeasMain Convener: Dr. Tung-Yuan Ho (Academia Sinica\, Taiwan)Co-conveners: Dr. Sohrin Yoshiki (Kyoto University\, Japan)\, Prof. I-I Lin (National Taiwan University\,Taiwan) and Dr. George T F Wong (Academia Sinica\, Taiwan) \nThe Northwestern Pacific Ocean and its adjacent marginal seas is an important and notable biogeochemical province in the world’s oceans. It includes the largest marginal sea of the world\, the South China Sea\, and some world class shelf-seas (e.g.\, the East China Sea and Northern South China Sea Shelf-sea and the Sunda Shelf). Its biogeochemistry is driven by diverse anthropogenic and natural forcings at strengths that are among the strongest in the world. They include riverine inputs from some of the major rivers of the world such as the Changjiang\, Huangho\, Pearl River and Mekong River\, atmospheric deposition with material from multiple origins (including desert dust\, volcanic aerosols\, anthropogenic aerosols\, biomass burning) at some of the highest fluxes in the world\, typhoons occurring at frequencies and strengths that are among the highest in the world\, internal waves with amplitudes that are almost unmatched in the world and one of the two primary western boundary currents in the world’s oceans. In addition\, it is also affected by global phenomena such as El Niño-Southern Oscillation\, La Niña\, ocean acidification and global warming. This joint (BG-OS-AS) session welcomes submissions of studies from broad disciplines in the biogeochemistry of the region\, including observations\, modeling\, and remote sensing efforts.
URL:https://www.geotraces.org/event/aogs-2013-asia-oceania-geosciences-society-annual-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20130217
DTEND;VALUE=DATE:20130223
DTSTAMP:20260424T164244
CREATED:20120305T091150Z
LAST-MODIFIED:20120305T091150Z
UID:1782-1361059200-1361577599@www.geotraces.org
SUMMARY:ASLO 2013\, Aquatic Sciences Meeting
DESCRIPTION:ASLO 2013\, Aquatic Sciences MeetingDates: 17-22 February 2013Location: New Orleans\, Louisiana \nFor further information: http://www.aslo.org/meetings/neworleans2013/ \nGEOTRACES relevant sessions: \n**SS57: Trace Elements and Isotopes in the Ocean and Atmosphere: the International GEOTRACES ProgramConveners: Peter Morton\, Florida State University; Carl Lamborg\, Woods Hole Oceanographic Institution. \nThe international GEOTRACES program is a multi-nation and multi-year effort to determine the concentration and speciation of trace elements and select isotopes in the world’s major ocean basins and some marginal seas at high vertical and horizontal resolution\, reminiscent of the GEOSECS program. This program’s goal is “to improve the understanding of biogeochemical cycles and large-scale distribution of trace elements and their isotopes in the marine environment.” ( www.geotraces.org). To date\, 35 “GEOTRACES compliant” section and process cruises have been completed and many more are planned. For this session\, we invite investigators to share their findings from any GEOTRACES cruise including those related to dissolved and particulate trace elements\, isotopes\, nutrients and dissolved gases as well as atmospheric analyses. We also welcome presentations describing intercalibration\, data management and modeling efforts related to GEOTRACES process and section studies. \n**SS08: Biogeochemistry of Metal-binding Organic Ligands in the Ocean: Sources\, Composition and Impacts on Trace Metal CyclingConveners: Maeve C. Lohan\, University of Plymouth; Sylvia G. Sander\, University of Otago; Kristen N. Buck\, Bermuda Institute of Ocean Sciences \nThe bioactive trace metals iron\, copper\, cobalt\, nickel\, zinc and cadmium are essential micronutrients for marine phytoplankton and exert a major influence on the global carbon cycle. Complexation of these metals by organic ligands may enhance or reduce bioavailability depending upon the metal-ligand complex formed. Yet we know little about the composition\, sources and cycling of metal-binding ligands\, which is hindering further advances in the field of trace metal biogeochemistry. An active SCOR Working Group (WG 139) ‘Organic Ligands- A Key Control on Trace Metal Cycling in the Ocean’ fosters the multidisciplinary collaboration of trace metal biogeochemists\, organic geochemists and biogeochemical modelers in order to advance this field. This session is a community wide forum to highlight recent accomplishments in metal-binding ligand characterization and approaches for assessing ligand composition\, sources and impacts on trace metal cycling in the aquatic environment\, and to discuss future efforts in this field. We welcome abstracts related to metal-binding ligands from throughout the multidisciplinary field of oceanography.
URL:https://www.geotraces.org/event/aslo-2013-aquatic-sciences-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20130106
DTEND;VALUE=DATE:20130111
DTSTAMP:20260424T164244
CREATED:20120710T074202Z
LAST-MODIFIED:20120710T074202Z
UID:1818-1357430400-1357862399@www.geotraces.org
SUMMARY:93rd AMS Annual Meeting
DESCRIPTION:93rd American Meterological Society (AMS) Annual MeetingDates: 6-10 January 2013Location: Austin\, Texas\, US  \nFor further information: http://annual.ametsoc.org/2013/ \nAbstract submission deadline: 1 August 2012  \nGEOTRACES Relevant Session:  \n2013 Robert A. Duce Symposium: “Air-Sea Chemical Exchange: Impacts on the Atmosphere and Ocean” \nIt will honor Bob’s distinguished contributions to research related to chemical cycles of pollutant and natural substances in the global atmosphere and\, in particular\, atmospheric transport of chemicals from the continents\, their deposition to the ocean and impact on marine biogeochemistry\, atmospheric chemistry and climate\, with studies in Antarctica\, the Arctic\, and all the world’s ocean.The symposium will also recognize his leadership of the atmospheric/oceanic science community both in the US and internationally.
URL:https://www.geotraces.org/event/93rd-ams-annual-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20121203
DTEND;VALUE=DATE:20121208
DTSTAMP:20260424T164244
CREATED:20120305T092307Z
LAST-MODIFIED:20120305T092307Z
UID:1802-1354492800-1354924799@www.geotraces.org
SUMMARY:American Geophysical Union Fall 2012 Meeting
DESCRIPTION:American Geophysical Union Fall 2012 MeetingDates: 3-7 December 2012Location:  San Francisco\, California\, USA \nFor more information: http://fallmeeting.agu.org/2012/ \nGEOTRACES Relevant sessions: \n **OS013: Isotope Tracers in the 21st Century Ocean: New Results\, Interesting Challenges\, and Unique OpportunitiesConveners: Steven L Goldstein (Columbia University)\, Alison E Hartman (Lamont-Doherty Earth Observatory)\, Howie D Scher (University of South Carolina) and Torben Stichel (University of Hawaii at Manoa). \n Bioactive\, particle-reactive\, and provenance-sensitive elements with isotopic variability in seawater are widely used to trace present and past processes in the oceans. Current research efforts\, such as GEOTRACES\, are increasingly multi-proxy\, high resolution\, and require smaller samples due to recent advances in mass spectrometry. Together these advances provide unprecedented opportunities to address source-to-sink questions and integration of tracers of different processes. This session brings together groups with new results from isotope tracers (Th\, Pa\, Nd\, Hf\, Cd\, Fe\, etc.) in the hopes of revealing new developments in our understanding of chemical cycling of the oceans \n**OS036: Sources\, Sinks\, and Speciation of Marine Micronutrient Trace ElementsConveners: Jessica N Fitzsimmons (MIT) and Christopher T Hayes (Columbia University
) \nMarine primary production can be limited by the concentration of micronutrient trace metals such as Fe. Linking micronutrient supply to biology remains a challenge\, however\, because of a poor understanding of the marine distribution and cycling of these metals. The de-convolution of micronutrient biogeochemical cycles is aided by an investigation of their size partitioning/chemical speciation\, as well as the cycles of other metals (such as Al\, Th) that constrain individual parts of the micronutrient cycle. This session welcomes data from recent GEOTRACES cruises\, process studies\, or modeling efforts focused on understanding the distribution\, supply\, removal\, or chemical speciation of marine micronutrient trace elements.
URL:https://www.geotraces.org/event/american-geophysical-union-fall-2012-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20121015
DTEND;VALUE=DATE:20121018
DTSTAMP:20260424T164244
CREATED:20120604T061913Z
LAST-MODIFIED:20120604T061913Z
UID:1816-1350259200-1350518399@www.geotraces.org
SUMMARY:Open Science Symposium on Western Pacific Ocean Circulation and Climate (OSS-2012)
DESCRIPTION:Open Science Symposium on Western Pacific Ocean Circulation and Climate (OSS-2012)Dates: October 15-17\, 2012Location: Qingdao\, ChinaFor further information: http://oss2012.csp.escience.cn \nAbstract submission deadline: July 15\, 2012Financial support application deadline:  July 30\, 2012 \nGEOTRACES Relevant Session: \nTheme 5: Carbon cycling\, biogeochemistry and ecosystem in the Western Pacific Ocean (WPO) \nTheme Conveners： Minhan Dai (Xiamen University\, China\, mdai@xmu.edu.cn)\, Fei Chai (University of Maine\, USA\, fchai@umaine.edu)\, James D. Murray (University of Washington\, jmurray@u.washington.edu)\, Francisco P. Chavez (Monterey Bay Aquarium Research Institute\, USA\, chfr@mbari.org)\, Tukul Rameyo Adi (Agency for Marine and Fisheries Research\, Indonesia\, rameyo_adi@dkp.go.id). \nThe Open Science Symposium on Western Pacific Ocean Circulation and Climate (OSS-2012) is to be jointly organized by Northwestern Pacific Ocean Circulation and Climate Experiment (NPOCE\, http://npoce.qdio.ac.cn/default.asp) and Southwest Pacific Ocean Circulation and Climate Experiment (SPICE). The objectives of OSS-2012 is to provide a forum for oceanographers and meteorologists to exchange recent progresses and advances in their study of the Western Pacific Ocean (WPO) circulation and climate\, marine biogeochemistry and ecosystem\, their variability\, change and impact\, to explore opportunities for international collaboration\, and to promote interdisciplinary study.
URL:https://www.geotraces.org/event/open-science-symposium-on-western-pacific-ocean-circulation-and-climate-oss-2012/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20120624
DTEND;VALUE=DATE:20120630
DTSTAMP:20260424T164244
CREATED:20101126T124837Z
LAST-MODIFIED:20101126T124837Z
UID:1709-1340496000-1341014399@www.geotraces.org
SUMMARY:Goldschmidt 2012
DESCRIPTION:Goldschmidt 2012Dates: 24-29 June 2012Location: Montréal – CanadaFor further information: http://www.vmgoldschmidt.org/2012/index.htm \nAbstract submission is closed. \nRelevant sessions: \n10a. Proxy development for paleoclimate and paleocean chemistryCo-convenors: Ann Russell (University of California at Davis) – Pamela Martin (University of Chicago) – Bärbel Hönisch (Lamont-Doherty Earth Observatory \n10c. Past and future changes in ocean circulationCo-convenors: Eric Galbraith (GEOTOP-McGill University) – Laura Robinson (University of Bristol) \n11a. Biogeochemical cycling of aerosols and their effects in the evolving Earth’s climate(co-hosted by Themes 11 and 10)Co-conveners: Nicholas Meskhidze (North Carolina State University) – Ina Tegen (Institute for Tropospheric Research\, Leipzig\, Germany)   \n12b. Pa and Th distributions in the ocean: controlling mechanisms(co-hosted by Themes 12 and 13)Co-convenors: Abel Guihou (SUNY-Stony Brook) – Robert F Anderson (LDEO of Columbia University) \n12e. Present and past biogeochemical cycling of nutrients and metals in high latitude marine environments(co-hosted by Themes 12 and 16)Co-convenors: Dr. Laura Wehrmann (University of California Riverside\, USA) – Dr. Christian März (Newcastle University\, UK)  \n12g. Contribution of submarine groundwater discharge to oceanic chemical cycles(co-hosted by Themes 12 and 22)Co-convenors: Aaron Beck (Virginia Institute of Marine Science) – Richard Peterson (Coastal Carolina University) \n13b. Geochemical proxies for past ocean circulationCo-convenors: Anton Eisenhauer (IFM-GEOMAR/Kiel) – Steven L. Goldstein (Lamont-Doherty Earth Observatory) – Ralph Schneider (Universität Kiel) \n13d. GEOTRACES\, the international science programCo-convenors: Géraldine Sarthou (Université de Brest) – Kazuyo Tachikawa (CEREGE\, France) – Tina van De Flierdt (Imperial College\, London) \n17e.The application of synchrotron X-ray techniques to study marine biogeochemical cyclesCo-convenors: Phoebe J. Lam (Woods Hole Oceanographic Institution) – Brandy M. Toner ( University of Minnesota – Twin Cities) – Benjamin S. Twining (Bigelow Laboratory for Ocean Sciences) \nDescriptions: \n*10a. Proxy development for paleoclimate and paleocean chemistry(co-hosted by Themes 10 and 13)Co-convenors: Ann Russell (University of California at Davis) – Pamela Martin (University of Chicago) – Bärbel Hönisch (Lamont-Doherty Earth Observatory)Development of geochemical proxies for reconstructing past climatic and ocean chemical conditions is a key component of paleoclimate and paleoceanographic research and essential for gleaning insight into the Earth’s future from its history. Archives of paleoenvironmental information include both biogenic and authigenic precipitates and isolating an environmental signal can be convoluted by post-depositional overgrowths. Covariation of environmental parameters can also make it difficult to calibrate the response of a proxy to a single environmental parameter. In deep time\, additional complications can arise when the possible controls over proxy relationships are less constrained and different_from_modern seawater chemistry may change proxy relationships from the conditions under which the proxy was calibrated.This session seeks to share progress on identifying the primary geochemical mechanisms and environmental controls over marine proxies\, as well as approaches and tools for addressing post- depositional alteration. We welcome contributions focused on the geochemistry of proxies from carbonates\, diatoms\, organic material\, as well as bulk sediments and authigenic precipitates. We encourage analytic method development and specifically contributions that go beyond empirical correlations between ocean parameters and proxy signals\, which may improve the quality of proxy applications by delving into the mechanistic basis for the relationship.Keynote speaker: TBA \n*10c. Past and future changes in ocean circulationCo-convenors: Eric Galbraith (GEOTOP-McGill University) – Laura Robinson (University of Bristol)Despite decades of research\, the large-scale drivers of deep-ocean circulation – and its susceptibility to change – remain poorly understood. Ocean mixing\, especially vertical mixing\, is of critical importance to this circulation\, but is difficult to observe in the modern ocean. Paleoceanographic records offer great potential in constraining past changes in ocean circulation\, which can help reveal natural variability of ocean mixing\, while ocean models can provide insight into mechanisms\, constrained by present-day observations. Together\, these approaches help to predict the biogeochemical impacts of future changes in ocean circulation. This session aims to bring together geochemical observations and theory that can shed light on ocean mixing and its impacts on ocean circulation\, and gas and nutrient cycling in the past\, present and future. We invite contributions that can constrain or quantify deep ocean circulation on any timescale\, and particularly encourage contributions that bear on vertical mixing in the ocean. We also welcome theoretical and modeling contributions that address the role of ocean circulation on biogeochemistry\, or that help to interpret geochemical observations.Keynote speaker: TBA \n*11a. Biogeochemical cycling of aerosols and their effects in the evolving Earth’s climate(co-hosted by Themes 11 and 10)Co-conveners: Nicholas Meskhidze (North Carolina State University) – Ina Tegen (Institute for Tropospheric Research\, Leipzig\, Germany)Climate projections remain an important scientific goal for the earth science community. A large fraction of the uncertainty in predicting climate change lies in the uncertainties associated with feedbacks in the carbon cycle and aerosol forcing. These feedbacks are the result of land-atmosphere-ocean natural and anthropogenic interactions. Understanding those interactions is of great importance for characterizing possible future changes in the evolving Earth. While aerosols are a source of micronutrients (iron\, phosphorus\, nitrogen) for the ecosystems\, the emission and transformation processes of many aerosols (e.g. desert dust or secondary organic aerosols of biogenic sources) can themselves be influenced by biogeochemical processes. We invite submissions on lab/field measurements\, remote sensing\, and modeling that lead to process-level understanding of biogeochemical land-atmosphere-ocean interactions. Interdisciplinary research on deposition of dust and volcanic particles\, heterogeneous chemical/photochemical transformation of aerosols\, and in-situ studies for the effects of aerosols on ocean/terrestrial biogeochemistry are welcome. The earth system models with aerosol deposition coupled to the land-ocean biogeochemistry are in their infancy. Until such models can reliably reproduce the effect of aerosol deposition on carbon cycle\, it will be problematic to estimate how changes in aerosol deposition over time might have affected the evolving climate of the Earth. \n*12b. Pa and Th distributions in the ocean: controlling mechanisms(co-hosted by Themes 12 and 13)Co-convenors: Abel Guihou (SUNY-Stony Brook) – Robert F Anderson (LDEO of Columbia University)231Pa and long-lived Th isotopes are naturally occurring radionuclides. Their potential to provide quantitative information of modern and past oceanographic processes (such as large scale ocean circulation and particle fluxes and dissolution) has been acknowledged for decades. However\, some uncertainties still remain regarding what actually controls their distribution in the ocean. This session invites contributions aimed to better understand these mechanisms such has new dissolved and particulate water column profiles\, new views on the distribution of these radionuclides onto particles from natural samples or from laboratory experiments as well as modeling studies.Keynote speaker: Michiel Rutgers van der Loeff (Alfred Wegener Institute for Polar and Marine Research) \n*12e. Present and past biogeochemical cycling of nutrients and metals in high latitude marine environments(co-hosted by Themes 12 and 16)Co-convenors: Dr. Laura Wehrmann (University of California Riverside\, USA) – Dr. Christian März (Newcastle University\, UK) This session targets the emerging field of biogeochemical research in Arctic and Antarctic environments\, with a focus on understanding the role of the high latitudes for global element cycles (C\, N\, P\, S\, Si\, transition metals) at present and in the past. We welcome contributions elucidating the cycling of these elements in the water column\, at the ice-sediment and sediment-water interface\, in shallow as well as in deeply buried marine sediments of high latitude environments. This session aims to gather scientists studying Arctic and Antarctic fjords\, estuaries and river mouths\, glacial and pro-glacial environments\, as well as associated continental shelves\, slopes\, and the deep oceans. Topics of particular interest include\, but are not limited to the (coupled) cycling of carbon\, sulphur\, phosphorus\, iron and manganese in Arctic and Antarctic sediments; the overprint of paleoclimate proxies by biogeochemical processes; the role of microbial processes in shaping the diagenetic characteristics of high latitude environments; biogeochemical interactions between glaciers and the coastal ocean; the role of high latitude environments for global biogeochemical cycles in the past. We especially encourage contributions that apply multidisciplinary approaches\, novel analytical techniques\, and computer modelling to natural samples and/or in laboratory experiments.Keynote speaker: Prof. Rob Raiswell (Emeritus)\, School of Earth and Environment\, University of Leeds\, UK \n*12g. Contribution of submarine groundwater discharge to oceanic chemical cycles(co-hosted by Themes 12 and 22)Co-convenors: Aaron Beck (Virginia Institute of Marine Science) – Richard Peterson (Coastal Carolina University)Submarine groundwater discharge (SGD) comprises all water transported by advection across the permeable sediment-water interface\, including both fresh groundwater and recirculated seawater. Biogeochemical reactions such as ion exchange\, dissolution and precipitation\, and metal redox cycling occur in the subsurface mixing zone of fresh and saline groundwaters (the “subterranean estuary”)\, resulting in brackish SGD that can be very different in composition from either of the original end-members. Further\, the advection of groundwater through the diagenetic zone can mobilize regenerated nutrients\, and serve as a transport pathway of these recycled nutrients back to the water column. A growing body of work demonstrates the importance of SGD and subterranean estuaries to marine budgets of nutrients\, radionuclides\, and trace elements. Understanding current SGD-driven chemical fluxes is critical for predicting how future changes in the hydrologic cycle\, coastal margins\, and anthropogenic factors may affect chemical cycling in the ocean. This session will explore the role of SGD and the subterranean estuary in controlling chemical fluxes between land and sea. We especially encourage studies that assess the ecological impact of these fluxes\, which is yet relatively unrepresented in this field. \n*13b. Geochemical proxies for past ocean circulationCo-convenors: Anton Eisenhauer (IFM-GEOMAR/Kiel) – Steven L. Goldstein (Lamont-Doherty Earth Observatory) – Ralph Schneider (Universität Kiel) The ocean circulation is an important aspect for the marine trace metal and nutrient cycling for the Present and in the Past. In particular\, ocean circulation interferes with the global carbon cycle influencing atmospheric pCO2 as well as long and short term climate change. In order to better understand present and past biogeochemical cycles it is most important to document and understand ocean dynamics on all time scales. Past changes in ocean circulation can only be reconstructed from geological archives\, among others\, through the application and interpretation of geochemical proxies. This session invites contributions addressing new developments and findings\, both experimental and theoretical\, on the application of geochemical proxies\, trace elements and isotopes to reconstruct past ocean dynamics.Keynote speaker: Gerald H. Haug (ETH Zürich)  \n*13d. GEOTRACES\, the international science programCo-convenors: Géraldine Sarthou (Université de Brest) – Kazuyo Tachikawa (CEREGE\, France) – Tina van De Flierdt (Imperial College\, London)Many trace elements are critical for marine life\, and affect the functioning of ocean ecosystems. On the other hand\, some trace elements and isotopes are used to track modern ocean processes\, and if they are recorded faithfully in marine archives\, they are powerful indicators of past changes. International science program GEOTRACES aims at identifying processes\, quantifying fluxes and establishing the sensitivity of the distribution of key trace elements and isotopes. We invite contributions that focus on fluxes and processes at ocean interfaces\, internal cycle of the trace elements and isotopes\, and development of proxies for past changes\, based on experimental and/or modelling approaches. Results from the recent GEOTRACES cruise are particularly welcome. \n*17e.The application of synchrotron X-ray techniques to study marine biogeochemical cyclesCo-convenors: Phoebe J. Lam (Woods Hole Oceanographic Institution) – Brandy M. Toner ( University of Minnesota – Twin Cities) – Benjamin S. Twining (Bigelow Laboratory for Ocean Sciences)Synchrotron X-ray techniques in the soft\, “tender”\, and hard x-ray energy ranges are increasingly applied to address questions in marine science. Applications have included two- and three-dimensional element-specific imaging at nanometer to micron scales to determine cell quotas and elemental distributions and function\, and spectroscopic analyses to determine the speciation\, provenance\, and bioavailability of key nutrients such as phosphorus and iron. We invite abstracts from researchers who are already applying synchrotron techniques to marine problems\, as well as those whose work in other areas of Earth science might be applicable to topics in marine biogeochemical cycling. For example\, poorly understood processes such as scavenging of trace metals in the ocean might be informed by studies of complexation of surface-adsorbed species onto model minerals and microorganisms. Similarly\, mechanisms of elemental substitution in inorganic and biominerals may change the stability and thus biogeochemical role of these minerals in the oceans. We envision a session enabling cross-fertilization of ideas between laboratory and field researchers\, and biologists and geochemists.Keynote speaker: Jay Brandes (Skidaway Institute of Oceanography) \n 
URL:https://www.geotraces.org/event/goldschmidt-2012/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20120220
DTEND;VALUE=DATE:20120225
DTSTAMP:20260424T164244
CREATED:20101115T083404Z
LAST-MODIFIED:20101115T083404Z
UID:1737-1329696000-1330127999@www.geotraces.org
SUMMARY:2012 Ocean Sciences Meeting
DESCRIPTION:2012 Ocean Sciences Meeting20–24 February 2012Location: Salt Lake City – Utah – USA \nFor further information: http://www.sgmeet.com/osm2012/ \nRelevant sessions:  \n*057: Biogeochemical Cycling of Micronutrient Trace Elements  Organizers: Maeve Lohan\, University of Plymouth; Andrew Bowie\, Antarctic Climate & Ecosystems CRC; Toshi Gamo\, Univeristy of Toyko; Greg Cutter\, Old Dominion University  There is growing international interest (e.g.\, GEOTRACES\, SOLAS\, IMBER) to identify processes and quantify fluxes that control the distributions of key trace elements and isotopes in the ocean and to establish the sensitivity of these distributions to changing environmental conditions. This session will focus on the trace elements that serve as micronutrients (e.g.\, Fe\, Cu\, Co\, Zn\, etc)\, the availability of which influence the biogeochemical activity of marine organisms\, control the structure of ocean ecosystems and hence regulate the ocean carbon cycle. We also welcome presentation of data on diagnostic trace elements (e.g.\, Al\, Mn\, rare earths\, etc) and isotopes that help characterise micronutrient sources and sinks. Submissions are invited which focus on micronutrients and diagnostic tracers in different phases (dissolved\, particulate\, speciation) that have been studied both along ocean sections from different ocean basins and in the context of process studies. We also welcome abstracts focusing on the numerical modeling of micronutrients to quantify lateral and vertical transports\, as well as biogeochemical sources and sinks. \nView the complete abstracts of the oral and poster presentations. \n *049: Advances in the Oceanography of Trace Elements and Isotopes in the Atlantic and Polar Oceans  \nOrganizers: Micha Rijkenberg\, Royal Netherlands Institute for Sea Research; Rob Middag\, University of California Santa Cruz; Stephanie Owens\, Woods Hole Oceanographic Institution; Patricia Cámara Mor\, Universidad Autonoma de Barcelona \nThe dynamic hydrography of Atlantic\, Arctic and Antarctic Oceans is key to the distribution of trace elements in the global oceans. Trace elements like iron play a pivotal role in controlling ocean productivity and therefore global climate. Moreover\, several Trace Elements and Isotopes (TEIs; stable or radioactive; natural or anthropogenic) serve as important tracers for unraveling ocean processes and turnover rates. Novel ultraclean rapid sampling systems and international reference samples facilitate measurement of TEIs along deep ocean sections in unprecedented high spatial resolution\, coverage and accuracy. For example\, the international effort resulted in the thus far longest 13000 kilometer full depth ocean section of TEIs in the Atlantic basin. Intercalibration at crossover stations further confirms accuracy between cruises. The high resolution and multi-tracer approaches produces novel relationships among TEIs and other tracers\, and reveals details not seen before. This in turn leads to shifts of paradigms. For example\, hydrothermal supply of iron and manganese appears more important for ocean inventory budgets than previously realized. For this session we like to invite topics on TEIs in the Atlantic and polar oceans\, including methods\, intercalibration\, field data and ocean modeling. Relevant topics in other oceans are most welcome as well. \nView the abstracts of the oral and poster presentations. \n*005: Metal Speciation in the Ocean: Metal-Binding ligand composition and role in the transport of metals through the marine environment  \nOrganizers: Sylvia Sander\, University of Otago; Constant van den Berg\, University of Liverpool; Kristen Buck\, Bermuda Institute of Ocean Sciences \nThe biogenic trace metals iron\, cobalt\, zinc\, nickel and copper are complexed by organic ligands in the marine system\, which can influence trace metal solubility and bioavailability. Little is known about the composition of these metal-binding ligands\, although siderophores\, thiols\, humic substances and saccharides have been identified. There is evidence that this organic complexation helps transport trace metals from their source (hydrothermal vents\, estuaries\, etc.) to the open ocean. Dynamic aspects related to photochemical changes in metal speciation are also being recognised. This session welcomes abstract submissions related to all aspects of metal speciation in the oceans\, and particularly to identifying sources and cycling processes of metal-binding ligands.  \nView the complete abstract of the oral and poster presentations.  \n*166: Redox and Coordination Chemistry of Iron Marine Systems \nOrganizers: James Moffett\, University of Southern California; Katherine Barbeau\, UC San Diego \nIron undergoes redox cycling between Fe(II) and Fe(III)\, and is strongly complexed by organic ligands. In the upper ocean\, organically complexed forms predominate and ultimately determine the reactivity and biological availability of iron. Fe(II) is produced through biological and photochemical processes and may at times be the predominant inorganic form of iron\, even in oxygenated waters. Recent evidence suggests that the coordination environment of iron created through organic complexation may influence the kinetics and thermodynamics of redox cycling. This session is directed at investigators who are studying iron redox and complexation processes at the molecular level\, and how those processes interactively influence biological iron utilization and cycling in diverse marine environments. Both field and laboratory-based investigations are of interest. While the session is focused on iron\, studies of related processes with other transition metals are also welcome. \nView the complete abstract of the oral and poster presentations. \n*EVW09: US Arctic GEOTRACES (Town Hall)Wednesday February 22\, 18:00 – 21:00\, Room 151 A\, B\, C\, G \nOrganizers: David Kadko\, University of Miami; Robert Anderson\, Lamont-Doherty Earth Observatory. \nGEOTRACES is an international program focused on understanding the cycling of trace elements and isotopes in the oceans. Since the inception of this program\, there has been strong interest in carrying out studies in the Arctic Ocean. The Arctic Ocean is at the epicenter of climate change\, and warming climate will likely have a profound impact on the carbon budget\, geochemical cycles\, and ecosystem of the Arctic. Furthermore\, these changes will ultimately be felt globally\, through feedbacks related\, for example\, to melting ice and release of carbon from permafrost. This interest has led to national and international discussions\, and planning has begun for a multi-national\, multi-icebreaker\, GEOTRACES field effort to the Arctic likely in 2015. The US will be an active participant in this endeavor. The purpose of this meeting is to provide an update on the status of the planning process and to solicit input from the community. \n*EVT15: ConCOAC: Connecting Chemical Oceanography with Analytical Chemistry (Town Hall)Tuesday February 21\, 18:00 – 21:00\, Ballroom J \nOrganizers: Chris Measures\, University of Hawaii; Maxime Grand\, University of Hawaii. \nWe are developing a new program to connect experts from analytical chemistry with oceanographers to adapt newly available technology to the determination of parameters in seawater that are of interest to oceanography. The goal of the town hall is to alert the broader community to our open science meeting\, the first component of this new program. We seek community input into workshop design particularly from young scientists who will become active members of this bridge between the fields.
URL:https://www.geotraces.org/event/2012-ocean-sciences-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20120216
DTEND;VALUE=DATE:20120221
DTSTAMP:20260424T164244
CREATED:20111205T084525Z
LAST-MODIFIED:20111205T084525Z
UID:1758-1329350400-1329782399@www.geotraces.org
SUMMARY:AAAS 2012 Annual Meeting
DESCRIPTION:American Association for the Advancement of Science (AAAS) 2012 Annual MeetingDates: 16-20 February 2012Location: Vancouver\, Canada \nFor more information:  http://www.aaas.org/meetings/ \nRelevant sessions: \n*Documenting a Changing Ocean Through International Multidisciplinary CollaborationsFriday\, February 17\, 2012: 1:30 PM-4:30 PMRoom 212 (VCC West Building) \nResource exploitation\, pollution\, acidification\, temperature\, and salinity changes are altering marine ecosystems\, seawater chemistry\, and ocean circulation in complex ways that are interconnected and feedback on the causes that initiated them. Understanding these changes is essential to providing food sources\, to sustaining economic development\, and to predicting future atmospheric greenhouse gas levels and global warming. The complexities and interrelatedness of these questions demand that oceanographic research be multidisciplinary\, integrative\, and based on global-scale observations conducted through large\, frequently multinational\, programs. The speakers will present major achievements from large-scale oceanographic programs addressing interrelated physical\, chemical\, and biological changes in the ocean. They will particularly focus on lessons learned and future challenges in crafting cross-cutting\, collaborative\, and global ocean observational programs. \nOrganizer: Roger Francois\, University of British ColumbiaCo-organizers: Roberta Hamme\, University of Victoria and Andrey Proshutinsky\, Woods Hole Oceanographic Institution \nSpeakers: \nEddy Carmack\, Fisheries and Ocean CanadaRapidly Changing Arctic Ocean: Observations from the International Polar Year \nHein de Baar\, Royal Netherlands Institute for Sea ResearchHighlights of Recent GEOTRACES Field Programs \nIan Perry\, Fisheries and Oceans CanadaShifting Paradigms and Improving Decision-Making for Marine Systems Under Change \nW. Brechner Owens\, Woods Hole Oceanographic InstitutionThe International Argo Program: Providing Global Ocean Observations for Climate \nKendra Daly\, University of South FloridaOcean Carbon and Biogeochemistry: Building a Community from the Bottom Up \nJ. Anthony Koslow\, Scripps Institution of OceanographyPerspectives on Ocean Climate from a 60+ Year Ocean Observation Program
URL:https://www.geotraces.org/event/aaas-2012-annual-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20110814
DTEND;VALUE=DATE:20110820
DTSTAMP:20260424T164244
CREATED:20101126T123659Z
LAST-MODIFIED:20190912T142043Z
UID:1707-1313280000-1313798399@www.geotraces.org
SUMMARY:Goldschmidt 2011
DESCRIPTION:Goldschmidt 2011Dates: 14-19 August 2011Location: Prague – Czech Republic \nFor more information: http://www.goldschmidt2011.org/index \nAbstract submission deadline 15 April 2011. \nRelevant sessions: \n15a: The GEOTRACES Programhttp://www.goldschmidt2011.org/themes?theme=15 \nConvenor: Ed Boyle\, Massachusetts Institute of Technology \n15b: Deep Ocean Circulation in the Pasthttp://www.goldschmidt2011.org/themes?theme=15 \nConvenors: Bob Anderson\, Lamont-Doherty Earth Observatory; and Jeanne Gherardi\, Laboratoire des Sciences du Climat et de l’Environnement \n11g: The Rare Earth Elements: Their Deposits\, Geochemistry\, and Environmental Impacthttp://www.goldschmidt2011.org/themes?theme=11&showDescriptions=true#session_11g \nConvenors: Michael Bau (Jacobs University)\, Ulrich Schwarz-Schampera (BGR)\, James R. Hein (USGS)
URL:https://www.geotraces.org/event/goldschmidt-2011/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20110808
DTEND;VALUE=DATE:20110813
DTSTAMP:20260424T164244
CREATED:20110118T091929Z
LAST-MODIFIED:20110118T091929Z
UID:1713-1312761600-1313193599@www.geotraces.org
SUMMARY:Asia-Oceania Geosciences Society (AOGS) Meeting 2011
DESCRIPTION:Asia-Oceania Geosciences Society (AOGS) Meeting 2011Dates: 8-12 August 2011Location: Taipei – Taiwan \nFor more information: http://www.asiaoceania.org/aogs2011/ \nAbstract submission is closed. \nRelevant Sessions: \nSession 1 details (OS09) Section OS – Ocean Sciences Session Title: Geochemical and Isotopic Proxies Deciphering Past Environmental and Oceanographic Changes \nMain Convener(s): Dr. Selvaraj Kandasamy (Academia Sinica\, Taiwan). \nCo-convener(s): Dr. Nagender Nath Bejugam (National Institute of Oceanography\, India). Dr. Madhavaraju Jayagopal (Universidad Nacional Autonoma de Mexico\, Mexico). Dr. Shuh-Ji Kao (Academia Sinica\, Taiwan ). \nSession Description \nEarth System Scientists and Marine Geochemists are interested in reconstructing the past environmental and oceanographic changes over the orbital to millennial timescales by using solid-phase geochemical proxies. Geochemical proxy data for paleoenvironmental and paleoceanographic changes could have large uncertainties\, and thus this decade has witnessed the invention of several new proxies\, catalyzing a renaissance of sediment geochemical research especially from South and East Asian regions. This session focuses on the advances made in using elemental and isotopic proxies for the past environmental and oceanographic changes in the low- and mid-latitude regions. We welcome contributions related to the critical evaluation of climate-environmental-specific proxies in modern and ancient terrestrial\, lacustrine and oceanic environmental settings. \n  \nSession 2 DetailsSectionIWG – Interdisciplinary Working Groups Session Title: Weathering Studies in Asia: Geochemical and Clay Mineralogical Constraints from Modern and Ancient Sediments  \nMain Convener(s): Dr. Nagender Nath Bejugam (National Institute of Oceanography\, India). \nCo-convener(s): Dr. Selvaraj Kandasamy (Academia Sinica\, Taiwan). Dr. Madhavaraju Jayagopal (Universidad Nacional Autonoma de Mexico\, Mexico). \nSession Description \nThe Earth’s Critical Zone and associated terrestrial life is governing by two interdependent surface processes\, namely erosion and weathering. A combination of atmospheric carbon dioxide levels and continental weathering intensity controls the Earth’s climate on glacial-interglacial timescales. Recent chemical weathering investigations from East Asia \, although only a few\, reveal a wide range of chemical weathering conditions that were not previously known. Given the importance of diverse climatic and tectonic regimes in Asia \, this session explores the recent advances in chemical weathering using geochemical and clay mineralogical studies of river\, lake and ocean sediments\, including sedimentary rocks. Chemical weathering studies from oceanic islands\, in-land lake systems and comparison between large and small river systems in Asia are most welcome. This session further evaluates the unexplored potential geographical regions for future investigations.
URL:https://www.geotraces.org/event/asia-oceania-geosciences-society-aogs-meeting-2011/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20110522
DTEND;VALUE=DATE:20110527
DTSTAMP:20260424T164244
CREATED:20101110T073943Z
LAST-MODIFIED:20101110T073943Z
UID:1699-1306022400-1306454399@www.geotraces.org
SUMMARY:ICAS 2011\, IUPAC International Congress for Analytical Sciences
DESCRIPTION:ICAS 2011\, IUPAC International Congress for Analytical SciencesDates: 22-26 May 2011Location: Kyoto\, Japan  \nCo-organized by The Japan Society for Analytical Chemistry (JSAC) and International Union of Pure and Applied Chemistry (IUPAC)For further information: http://www.icas2011.com/index.html \nRelevant session: \nS17) Geochemical Analysis \nCo-chair: Yoshiki Sohrin (Kyoto Univ.) Trace Elements and Isotopes in Marine Geochemistry \n    Kenneth W. Bruland (Univ. of California\, USA)    Derek Vance (Univ. of Bristol\, UK) 
URL:https://www.geotraces.org/event/icas-2011-iupac-international-congress-for-analytical-sciences/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20110502
DTEND;VALUE=DATE:20110507
DTSTAMP:20260424T164244
CREATED:20101110T084819Z
LAST-MODIFIED:20101110T084819Z
UID:1703-1304294400-1304726399@www.geotraces.org
SUMMARY:43th International Liège Colloquium on Ocean Dynamics
DESCRIPTION:43th International Liège Colloquium on Ocean DynamicsTracers of physical and biogeochemical processes\, past changes and ongoing anthropogenic impactsDates: 2nd – 6th May 2011Location: Liège – Belgium \nFor further information: http://modb.oce.ulg.ac.be/colloquium/ \nThe abstracts are available to download. \nOverview \nTracers such as Trace Elements and Isotopes (TEI) play an important role in oceanography as tools to (1) describe physical processes\, (2) quantify production and carbon export\, energy transfer\, and tro- phic pathways\, (3) understand the role of limiting micronutrients regulating ecosystem production and structure\,(4) reconstruct past ocean conditions\, (5) study transport and fate of anthropogenic inputs and pollutants. These thematics are investigated in the framework of several international projects: GEOTRACES\, SOLAS\, IMBER\, among others. Section cruises and process studies have taken place in polar oceans during the International Polar Year (2007-2008) and are now underway in other oceans. \nThe 43rd International Liege Colloquium on Ocean Dynamics will investigate new developments and insights related to tracers and proxies (from temperature and salinity to gases and isotopes) with a particular attention on the use of TEI as tracers.  \nAgenda \nThe Agenda is available to download.
URL:https://www.geotraces.org/event/43th-international-liege-colloquium-on-ocean-dynamics/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20110403
DTEND;VALUE=DATE:20110409
DTSTAMP:20260424T164244
CREATED:20101110T074335Z
LAST-MODIFIED:20101110T074335Z
UID:1700-1301788800-1302307199@www.geotraces.org
SUMMARY:EGU 2011\, European Geosciences Union
 General Assembly
DESCRIPTION:EGU 2011\, European Geosciences Union
 General AssemblyDates: 3-8 April 2011Location: Vienna\, Austria \nFor more information: http://meetingorganizer.copernicus.org/EGU2011/session/6985 \nRelevant session : \nIG14/CL4.14 Isotopic tracers and chronometers of climate\, ocean and environmental changes in the Arctic/sub-Arctic domains \nConvener: Alain Veron \nCo-Conveners: Claude Hillaire-Marcel\, Martin Frank \n  \nResearch activity about climatic\, environmental and paleoceanographic changes in the Arctic Ocean\, its surrounding continents and sub-arctic seas\, has increased drastically in recent years. Stable\, radioactive and radiogenic isotopes provide here a large array of tools to document land-ocean fluxes\, atmospheric and oceanic circulation patterns as well as an essential tool for the setting of time series from sedimentary archives. The planned session aim at joining expertise about land processes\, dissolved and particulate fluxes towards the Arctic Ocean and surrounding seas\, from such isotopic perspectives\, with special attention to i) the dating of environment/ocean changes during the Late Quaternary\, ii) the identification of eolian/marine sediment sources and their change through time\, iii) on-going natural/anthropogenically driven processes and iv) isotopic links between continental/marine and ice time series.
URL:https://www.geotraces.org/event/egu-2011-european-geosciences-union%e2%80%a8-general-assembly/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20110213
DTEND;VALUE=DATE:20110219
DTSTAMP:20260424T164244
CREATED:20100930T065128Z
LAST-MODIFIED:20100930T065128Z
UID:1697-1297555200-1298073599@www.geotraces.org
SUMMARY:ASLO 2011\, Aquatic Sciences Meeting
DESCRIPTION:ASLO 2011\, Aquatic Sciences MeetingDates: 13-18 February 2011Location: Puerto Rico \nFor more information: http://www.aslo.org/meetings/sanjuan2011/ \n\nRelevant Sessions:  \n*GSO2: Chemical Oceanography/GEOTRACESPresentations available at: https://www.sgmeet.com/aslo/sanjuan2011/sessionschedule.asp?SessionID=GS02 \nConveners: Greg Cutter\, Old Dominion University and Pere Masqué\, Universitat Autònoma de Barcelona \n*S87: Trace Metals and their Nutritional Importance to Marine Phytoplankton and BacteriaPresentations available at: http://www.sgmeet.com/aslo/sanjuan2011/sessionschedule.asp?SessionID=S87 \nConveners: Mak Saito\, Woods Hole Oceanographic Institution; Pete Sedwick\, Old Dominion University. \nThe past few decades have seen a growing appreciation of the vital role of micronutrient trace metals in the ocean carbon cycle. With the launch of the international GEOTRACES program and the rapid development of molecular techniques\, now is an opportune time to strengthen linkages between the geochemists and biologists who focus on trace metals and metalloproteins in the ocean. For this session\, we invite presentations on geochemical\, physiological\, biochemical and modeling studies that address the complex interactions between trace micronutrients and marine microbiota on scales ranging from global to molecular. \n*Town Hall Meeting: Microbial Biogeography and Biogeochemistry   \nConveners:  Eric Webb\, University of Southern California and Ben Van Mooy\, Woods Hole Oceanographic Institution. \n An Ocean Carbon and Biogeochemistry (OCB) Scoping Workshop chaired by Jim Moffett and Eric Webb (University of Southern California) was held in Los Angeles in November 2010 entitled “The Molecular Biology of Biogeochemistry.” The goal of this workshop was to assess the potential role of molecular biology to study marine biogeochemical cycles\, particularly the carbon cycle\, via large survey programs such as GEOTRACES.  Rapid advances in molecular methods are providing new tools applicable to global surveys and other observational programs focused on the oceans’ response to changing climate and other impacts.   However\, molecular biologists generally examine ecological problems like community diversity\, whereas geochemists are more interested in functionality and rates.  Here\, geochemists and molecular biologists sought common ground to identify which molecular biological measurements would be most useful for understanding marine biogeochemical cycles and characterizing their response to climate change. \n Workshop participants were enthusiastic about the integration of geochemical and marine biological tools in existing large survey programs but recognized the need for a new\, stand-alone field campaign to characterize the biogeography of marine microbial communities that will complement the existing global survey and observational programs.  The new program will characterize the distribution of microbial communities within the ocean on complete surface to bottom sections and couple these data with important geochemical measurements and rate measurements of key processes.    Such a program was seen as essential to achieve the core science objectives in biogeochemistry that was the charge of the workshop.  A stand-alone program is desirable for logistical and science reasons\, but the core parameters in GEOTRACES are highly complementary.  Therefore\, a plan was outlined for a sectional survey cruise in Fall 2013 concurrently or back to back with a proposed GEOTRACES zonal section in the eastern tropical South Pacific.  The effort will be spearheaded by participants at the workshop\, and led by Ginger Armbrust (University of Washington).  However\, planning of the program is still at a very early stage\, and input from the broader community of marine microbiologists\, biogeochemists and modelers is essential.  \n The following objectives were developed as an organizational framework for the development of the hypotheses and approaches for the first sectional cruise and the program as a whole: \n (1)    Characterize and define the connections between the presence and activity of microbes (i.e.\, functional biogeography) and physical and chemical parameters\, utilizing the tools of an unprecedented\, large group of microbiologists and geochemists. (2)    Utilize genomics\, transcriptomics\, proteomics\, and metabolomics in combination with process measurements to define biogeochemical ‘connections’ and their constraints. (3)    Integrate results from multiple sections to identify boundaries of microbial biogeographic provinces (analogous to the Longhurst provinces) over horizontal and vertical scales.\n(4)    Develop an operational framework for many laboratories to collaborate together using a variety of molecular and biogeochemical  tools that includes rigorous protocols for methodological inter-calibration and standardization (5)    Incorporate the program’s observations into a new generation of models that capture the connections between microbes and chemistry in an ocean perturbed by climate change.  \n At the Town Hall Meeting\, these plans will be discussed along with a detailed summary of the meeting deliberations about the topics in points 1-5.
URL:https://www.geotraces.org/event/aslo-2011-aquatic-sciences-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20100322
DTEND;VALUE=DATE:20100327
DTSTAMP:20260424T164244
CREATED:20100423T113531Z
LAST-MODIFIED:20100423T113531Z
UID:1626-1269216000-1269647999@www.geotraces.org
SUMMARY:2010 Ocean Science Meeting
DESCRIPTION:2010 Ocean Sciences MeetingDates: 22 – 26 FebruaryLocation: Portland\, Oregon \nFor further information: http://www.agu.org/meetings/os10/ \nRelevant sessions: \n*C007: GEOTRACES in the International Polar Year \nConvener: Rob Middag\, Royal Netherlands Institute for Sea Research; Delphine Lannuzel\, University of Tasmania and Celia Venchiarutti\, Alfred Wegener Institute. \nTrace elements\, such as iron\, play a pivotal role in controlling ocean productivity and therefore global climate. Moreover several trace elements and isotopes serve as key tracers for unraveling processes and turnover rates in the oceans. The international GEOTRACES program pursues the characterization of marine biogeochemical cycles of Trace Elements and Isotopes (TEIs; stable or radioactive; natural or anthropogenic). In context of the International Polar Years (IPY) 2007-2009 the GEOTRACES program had its flying start with four Arctic and six Antarctic expeditions in order to study TEIs abundances\, processes and fluxes in the polar oceans. The multi-tracer approaches and inter-calibration exercises carried out during IPY-GEOTRACES have produced novel relationships among TEIs and other tracers and improved methods for sampling and analyses. We seek topics on TEIs as controling elements as well as tracers of biogeochemical processes in the polar oceans in the context of IPY-GEOTRACES and other relevant projects. \n*C009: Getting the Right Number: Precision and Accuracy in Chemical Oceanography \nConvener: Gregory Cutter\, Old Dominion University and Robert Sherrell\, Rutgers University. \nAccuracy and precision are essential for all biogeochemical studies. Some important chemical species are in extremely low concentration while others require high precision for optimal interpretation. Intercalibration is an active process among laboratories that includes all steps from sampling to analyses\, with the goal of achieving the same accurate results regardless of the method or lab. Past intercalibration efforts included examinations of colloids and carbonate system parameters\, and more recently the Sampling and Analysis of Iron (SAFe) experiment. The GEOTRACES intercalibration program is currently underway. This session seeks presentations focusing on methods to assess the accuracy and precision of determining various chemical parameters in the ocean (from organics to metals to isotopes in dissolved and particulate phases) and results from intercalibration programs. An important goal will be for attendees to discuss how best to assess accuracy from sampling to analysis when suitable certified reference materials are not available. \n 
URL:https://www.geotraces.org/event/2010-ocean-science-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20091214
DTEND;VALUE=DATE:20091219
DTSTAMP:20260424T164244
CREATED:20100505T074517Z
LAST-MODIFIED:20100505T074517Z
UID:1686-1260748800-1261180799@www.geotraces.org
SUMMARY:American Geophysical Union Fall 2009 Meeting
DESCRIPTION:2009 American Geophysical Union Fall MeetingDates: 14 – 18 December 2009Location: San Francisco\, CA USA \nFor further information: http://www.agu.org/meetings/fm09/ \nRelevant session: \nPP05: Late Pleistocene Variability in Ventilation of Deep and Intermediate Water Masses
URL:https://www.geotraces.org/event/american-geophysical-union-fall-2009-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
END:VCALENDAR