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DTSTART;VALUE=DATE:20200207
DTEND;VALUE=DATE:20200208
DTSTAMP:20260503T013513
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SUMMARY:2nd Russian GEOTRACES Seminar
DESCRIPTION:The 2nd Russian GEOTRACES seminar was held in February 7\, 2020 in Moscow at the Shirshov Institute of Oceanology\, Russian Academy of Sciences (https://ocean.ru). Eric Achterberg initiated the GEOTRACES seminar during his visit as part of the Helmholtz team. About 50 people attended the seminar in Moscow and some people listened to the presentation remotely in Sevastopol\, Kaliningrad\, and Arkhangelsk. The presentation aroused a great interest among the seminar participants. \n\n\n\nOrganizers \n\n\n\nProf. Dr. Eric Achterberg (SSC member)\, PhD Marina Kravchishina (SSC member) and Prof. Dr. Piotr Zavyalov (Corresponding Member of Russian Academy of Sciences (RAS)\, Shirshov Institute of Oceanology of RAS\, chairman of the regular academic council meeting). \n\n\n\nIntroduction \n\n\n\n12:00 (about 15 min) \n\n\n\nPiotr Zavyalov welcomed the colleagues of IO RAS and guests from other Institutes and Universities (Lomonosov Moscow State University\, Russian Federal Research Institute of Fisheries and Oceanography and etc). He then introduced Prof. Dr. Eric Achterberg (Chemical Oceanography GEOMAR\, Helmholtz Centre for Ocean Research Kiel and Christian-Albrechts University Kiel\, Germany\, member of the international GEOTRACES program) who initiated the GEOTRACES seminar. \n\n\n\nMarina Kravchishina reported about GEOTRACES activity in Russia and highlighted the main purposes of the study of the marine biogeochemical cycles of trace elements and their isotopes (TEIs) and the need for international collaboration.  \n\n\n\nOpening Speech \n\n\n\n50 minutes talk \n\n\n\nProf. Dr. Eric Achterberg  \n\n\n\nInternational GEOTRACES Programme: Observations across ocean gradients provide insights into biogeochemical cycles \n\n\n\nExperimental work in laboratories and at sea provides important detail on biogeochemical processes and (micro)-nutrient limitation of ocean productivity. Whilst forcing variables can be carefully manipulated in bottle and mesocosm experiments\, artefacts may occur due to exclusion of parts of plankton communities\, contamination and/or ´bottle´ effects. Biogeochemical process observations across biogeochemical gradients as part of section cruises form an elegant alternative. In this talk\, I will present examples of how cruises linked to the SOLAS and GEOTRACES programmes are providing excellent platforms for observations of changes in biogeochemical processes as a consequence of strong geochemical gradients. I will present geochemical gradients related to volcanic\, dust\, glacier and river inputs and their impacts on ocean biology. I will explore variations in nitrogen fixation\, (micro)-nutrient limitation of microbial communities\, and iron cycling related to changes in supply of (micro)-nutrients and oxygen. \n\n\n\nThe improved process understanding and quantification can be used for projections of biogeochemical processes in a future ocean. \n\n\n\nAbout 20 minutes – questions and discussion after the presentation. \n\n\n\nLunch  \n\n\n\nRound Table \n\n\n\nAbout two hours.  \n\n\n\nA very useful discussion on the TEIs clean sampling systems and analyses was organized after the seminar by Prof. Dr. Eric Achterberg (SSC member)\, PhD Marina Kravchishina (SSC member) and Dr. Ludmila Demina (Past SSC member). About 10 people took part in the discussion that interested in TEIs studying in seawater. \n\n\n\n 
URL:https://www.geotraces.org/event/2nd-russian-geotraces-seminar/
LOCATION:Shirshov Institute of Oceanology\, Russian Academy of Sciences\, Moscow\, Russian Federation
CATEGORIES:GEOTRACES Scientific Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20191208
DTEND;VALUE=DATE:20191211
DTSTAMP:20260503T013513
CREATED:20191016T090044Z
LAST-MODIFIED:20210726T123244Z
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SUMMARY:Asia GEOTRACES Workshop: Sources/sinks and internal cycling of mercury and other TEIs in the Northwest Pacific Ocean
DESCRIPTION:Asia GEOTRACES Workshop:Sources/sinks and internal cycling of mercury and other TEIs in the Northwest Pacific OceanLocation: Qingdao\, Shandong\, ChinaDates: December 8-10\, 2019 \n\n\n\nDownload the announcement \n\n\n\nAbout the workshop \n\n\n\nGEOTRACES project covers global oceans\, including the Northwestern Pacific Ocean (NWPO). However\, the knowledge on regional distributions and internal cycling of trace elements and their isotopes (TEIs) in seawaters in the NWPO is still limited. \n\n\n\nFor example\, mercury (Hg) cycling in the oceans has drawn extensive public concerns because of the production of methylmercury (MeHg) in the marine environments. The produced MeHg can then be biomagnified via food chain\, bioaccumulated to high concentrations in organisms at high trophic levels and pose great threat to human health. Some efforts have been made on investigating the distribution and cycling of Hg in the Pacific Ocean. East Asia is the largest source region for Hg. Large amounts of Hg were discharged into the ocean via riverine input and atmospheric deposition\, highlighting the importance of this region in Hg studies. However\, there is lack of studies on the distribution and cycling of Hg in the NWPO. Few mercury data following the GEOTRACES protocols were reported in this region and controlling processes and factors for Hg cycling in the NWPO are largely unknown. \n\n\n\nAs major GEOTRACES ocean interfaces\, exchange between atmosphere and surface water\, sediments and the overlying water column significantly influence the net sources and sinks for dissolved TEIs in seawater\, as well as the internal cycling of TEIs in the NWPO. However\, little is known about net supplies of TEIs from sediments and atmosphere as well as the key processes and key areas for the supplies in the NWPO. The marginal seas in the NWPO\, such as Bering Sea\, Sea of Okhotsk\, East China Sea\, and South China Sea\, receive significant amount of lithogenic and anthropogenic substances from fluvial input and submarine groundwater discharge. These marginal seas are also important source areas that supply trace elements to the NWPO\, which can highly influence TEIs cycling in open ocean. The major transport processes and fluxes for TEIs in each individual marginal sea remain to be explored. The major western boundary current of the NWPO\, the Kuroshio\, flows exactly through the region between the marginal seas and the NWPO\, passing by the eastern ends of Philippine and Taiwan and mixed with the seawater originated from the East and South China Seas\, then going northeastern direction to form the Kuroshio extension. The dynamic Kuroshio system not only links the NWPO and its marginal sea but also indicates the necessity for regional collaboration to fully understanding TEIs cycling in the oceanic region. \n\n\n\nAn Asia GEOTRACES Workshop\, organized by Ocean University of China\, will be held in Qingdao on December 8-10\, 2019. In this workshop\, we plan to invite GEOTRACES scientists in Asia as well as other regions to evaluate a full picture of the current status of the studies on the major sources/sinks and internal cycling processes of TEIs in seawater (emphasized on mercury) in the NWPO\, and to generate a future regional collaboration and action plan for Asia GEOTRACES. \n\n\n\nTopics \n\n\n\n1) Mercury in the NWPO (Part I) \n\n\n\nContributions of Asia marginal seas to mercury in the Pacific OceanMercury speciation and cycling in the NWPOMercury international inter-calibration and strengthening the capability of marine Hg analysis and study in the AsiaDiscussion on the Part II: Mercury international inter-calibration during the testing cruise via “Dongfanghong III”\n\n\n\n2) TEls fluxes and processes at ocean interfaces \n\n\n\nAtmospheric depositionContinental run-off (e.g. fluvial input and submarine groundwater discharge)Interaction between marginal seas and Kuroshio waterSediment-water boundary\n\n\n\nOrganizers \n\n\n\nJingling Ren\, Yanbin Li\, Qian Liu\, Jing Zhang\, Meixun Zhao \n\n\n\nVenue and Accommodation \n\n\n\nThe workshop will be held in Badaguan Hotel (Shanhaiguan Road 19\, Qingdao\, Shandong). The workshop organizer has contracted a special rate with the Badaguan Hotel (380 RMB per night (tax included)) and can book the rooms for the attendees if needed (please fill out the pre-registration form and send it to Ms. Yan Wang (wangyan2843@ouc.edu.cn) before November 15\, 2019). \n\n\n\nAbstract Submission and Pre-registration \n\n\n\nThere is no registration fee for this workshop. Deadline for the pre-registration and abstract submission is November 15\, 2019 (please send the filled pre-registration form and the abstract to Ms. Yan Wang (wangyan2843@ouc.edu.cn) before the deadline. \n\n\n\nWorkshop Agenda \n\n\n\nDecember 8\, RegistrationDecember 9\, Sessions and DiscussionDecember 10\, Sessions and Discussion \n\n\n\nContact \n\n\n\nDr. Yanbin Li Phone：+8613969878395；Email: liyanbin@ouc.edu.cn  \n\n\n\nDr. Qian LiuPhone：+8613012462801；Email: liuqian@ouc.edu.cn  \n\n\n\nMs. Yan Wang Phone：+8615066806036；Email: wangyan2843@ouc.edu.cn \n\n\n\nThis workshop is supported by the Ocean University of China.                                                   
URL:https://www.geotraces.org/event/asia-geotraces-workshop-sources-sinks-and-internal-cycling-of-mercury-and-other-teis-in-the-northwest-pacific-ocean/
LOCATION:Badaguan Hotel\, Qingdao\, Shandong\, China
CATEGORIES:GEOTRACES Scientific Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20190923
DTEND;VALUE=DATE:20190929
DTSTAMP:20260503T013513
CREATED:20190402T132216Z
LAST-MODIFIED:20210726T123303Z
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SUMMARY:GEOTRACES Summer School
DESCRIPTION:GEOTRACES Summer SchoolDates: 23-28 September 2019Location: Cadiz\, Spain \n\n\n\n\n\n\n\n \n\n\n\nBackground \n\n\n\nThe second GEOTRACES summer school will be held between the 23rd and 28th September 2019 in Cadiz\, Spain\, on board of the school ship Intermares A-41.  \n\n\n\nGEOTRACES summer schools aim at teaching the skills and knowledge necessary for a good understanding of the biogeochemical cycles of trace metals. General lectures will be given by 10 world-leading international scientists and practical sessions including field sampling workshops will be ran throughout the week. \n\n\n\nThe summer school is open to 36 students. The maintenance and lodging on board of the Intermares school vessel during the course will be covered for all students. \n\n\n\nOrganizers \n\n\n\nUniversity of Cádiz (UCA)\, the Andalusian Institute of Marine Sciences of the Spanish National Research Council (ICMAN-CSIC)\, the International Campus of Excellence of the Sea (CEI·MAR) and the International GEOTRACES programme. \n\n\n\nCall for applications \n\n\n\nPlease read the call for applications for information on the application procedure\, the summer school fees and the scholarship programme available. \n\n\n\nDeadline for applications \n\n\n\nPre-registration is open until May 15th\, 2019. Applications will be subject to selection. \n\n\n\nFor more information and applications \n\n\n\nPlease visit the summer school web site: https://geotraces.uca.es/ \n\n\n\nSponsors \n\n\n\nScientific Committee on Oceanic Research (SCOR)\, GEOTRACES\, General CSIC Foundation\,  International Doctorate School of Marine Studies (EIDEMAR) and CEI·MAR.
URL:https://www.geotraces.org/event/geotraces-summer-school-2/
CATEGORIES:GEOTRACES Training Activities
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20190912
DTEND;VALUE=DATE:20190914
DTSTAMP:20260503T013513
CREATED:20200311T160644Z
LAST-MODIFIED:20210726T123319Z
UID:6133-1568246400-1568419199@www.geotraces.org
SUMMARY:Southern Ocean Biogeochemistry Workshop
DESCRIPTION:Background \n\n\n\nThe workshop will bring together national and international scientists as well as local students and researchers in biogeochemical oceanography\, modelling and paleoceanography focused on the Southern Ocean’s response to climate change. It will also discuss the development of collaborative projects including GEOTRACES process studies. \n\n\n\nProgramme \n\n\n\nThe Workshop programme is available to download here.
URL:https://www.geotraces.org/event/southern-ocean-biogeochemistry-workshop/
LOCATION:IMAS\, IMAS Waterfront Building\, University of Tasmania\, Hobart\, Australia
CATEGORIES:GEOTRACES Scientific Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20190909
DTEND;VALUE=DATE:20190912
DTSTAMP:20260503T013513
CREATED:20180927T082711Z
LAST-MODIFIED:20180927T082711Z
UID:2098-1567987200-1568246399@www.geotraces.org
SUMMARY:2019 GEOTRACES Scientific Steering Committee Meeting
DESCRIPTION:2019 GEOTRACES SSC MeetingDates: 9-11 September 2018Location: Hobart\, Tasmania \n 
URL:https://www.geotraces.org/event/2019-geotraces-scientific-steering-committee-meeting/
CATEGORIES:GEOTRACES Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20190907
DTEND;VALUE=DATE:20190909
DTSTAMP:20260503T013513
CREATED:20180927T082833Z
LAST-MODIFIED:20180927T082833Z
UID:2099-1567814400-1567987199@www.geotraces.org
SUMMARY:2019 GEOTRACES Data Management Committee Meeting
DESCRIPTION:2019 GEOTRACES DMC MeetingDates:  7-8 September 2019Location: Hobart\, Tasmania.\n 
URL:https://www.geotraces.org/event/2019-geotraces-data-management-committee-meeting/
CATEGORIES:GEOTRACES Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20190818
DTEND;VALUE=DATE:20190824
DTSTAMP:20260503T013513
CREATED:20190117T095920Z
LAST-MODIFIED:20190117T095920Z
UID:2103-1566086400-1566604799@www.geotraces.org
SUMMARY:Goldschmidt 2019
DESCRIPTION:Goldschmidt 2019Dates: 18 – 23 August 2018Location: Barcelona \nFor further information: https://goldschmidt.info/2019/ \nAbstract submission deadline: 29 March 2019 \nGEOTRACES sessions: \n \n10c: Arctic and sub-Arctic Processes: Understanding Changing Ocean Circulation and Biogeochemistry \nConveners: Núria Casacuberta\, Michael Karcher\, John Smith\, Lauren Kipp\, Christian März\, Robyn Tuerena \nResearch in the context of GEOTRACES and beyond has shown the value of using chemical tracers in seawater for documenting and understanding transient ocean processes. Tracer applications in ocean models have provided significant additional insights into physical oceanography and fostered the improvement of ocean models. Natural and anthropogenic tracers such as radionuclides\, gas tracers\, oxygen isotopes\, DOM\, etc. can facilitate a better understanding of circulation and mixing in high latitude regimes. With a focus on the Arctic Ocean and its adjacent seas we invite contributions dealing with chemical tracers as tools for investigations on the circulation within and exchanges between the Arctic and sub-Arctic Seas\, including the northern Atlantic and Pacific oceans. We encourage contributions on large-scale processes occurring over annual to decadal time scales\, that provide insight into dispersion pathways in the Arctic and sub-Arctic seas and tele-connections between Arctic circulation and the Meridional Overturning Circulation via the Arctic Loop Current. We especially encourage contributions combining modelling with tracer measurements. Questions to be addressed may include: • What can be learned about circulation and modification of water masses in the northern oceans based on tracer observations and modelling? • What are the elements of water mass dispersion that appear to be stable over timescales of years to decades\, and which are changing? • What are the governing physics and bio-geochemistry factors? • What are the most promising new tracers for the Arctic domain? • How can collaboration between observational tracer science and modelling be improved? \n10j: Biogeochemical Cycles of Low Oxygen Zones and their Response to Ocean Deoxygenation  \nConveners: Nicole Bale\, Darci Rush\, Ruifang Xie\, Tim Conway\, Insa Rapp\, Laura Bristow \nKeynote: Caroline Slomp (Utrecht University) \nObservations in the past decades have confirmed steadily declining dissolved oxygen concentrations in the subsurface oceans including coastal systems (coastal hypoxia) and open ocean oxygen minimum zones. Future expansion and spread of oxygen deficient zones in the ocean is predicted as a consequence of climate change\, and will result in major changes to marine biogeochemical cycles. These changes will impact sources and sinks of nitrogen\, phosphorus\, sulfur and redox-sensitive trace metals in the oceans\, with global effects on the biota that utilize these elements. This session seeks to bring together geochemical\, biological and physical scientists working on present and past low-oxygen environments\, in order to gain an integrated view of biogeochemistry in these systems. We thus invite submissions of field\, experimental and modelling studies focusing on major nutrients\, trace elements\, dissolved gases\, microbial ecology\, molecular biomarkers\, productivity and physical drivers in these systems. We encourage submissions focusing on (1) the distribution\, isotopic composition\, and speciation of macro- (e.g.\, N\, P\, S\, Si) and micronutrients (e.g.\, Fe\, Zn\, Cd\, Ni\, Cu) across the entire oxic-anoxic transition both in the modern ocean and the geologic past such as oceanic anoxic events\, (2) assessment of the marine sources and sinks of these elements from low-oxygen environments\, (3) N2O and CH4 production and emissions in low-oxygen systems\, and (4) the impacts of chemical and physical change on productivity and microbial pathways. Regional or global interpretations based on earth system models or large chemical datasets from programs such as GEOTRACES are especially encouraged. \n10k: Trace Metal Cycling and Radioisotope Tracers of Ocean Biogeochemistry (GEOTRACES)  \nConveners: Aridane G. González\, Hannah Whitby\, Amber Annett\, Emilie Le Roy \nThis session will highlight recent advances in marine trace element chemistry and the use of radionuclides as tracers in the marine system. In particular\, we focus on the speciation and ligand-binding reactions of trace metals\, and investigation of both micro- and macro-nutrient cycles and fluxes using natural and anthropogenic radionuclides. The GEOTRACES program\, which aims to map the world’s oceans for trace elements and their isotopes with unprecedented resolution\, has facilitated rapid progress in these research areas. Radioisotopes are becoming increasingly powerful tracers for studying the biogeochemical cycles of carbon\, nutrients\, trace elements and isotopes in the world’s oceans. These tracers can be naturally-occurring or anthropogenic\, with a wide range of half-lives allowing their application to a broad array of processes. Methodological advances and standardization (e.g. through GEOTRACES and RiO5) are contributing to increasing spatial coverage and temporal resolution of data of many marine radioisotopes. In order to understand the processes behind trace metal fluxes and export\, we must also understand the physico-chemical interactions and organic speciation of trace metals\, which play an important role in their biogeochemical cycling. The GEOTRACES effort has vastly increased the database of metal-binding organic ligand distributions\, demonstrating key features and distinct regional trends. However the identification of these ligands\, as well as their effect on the redox reactions and bioavailability of trace metals in natural waters\, are still largely unconfirmed. In this session\, we invite observational\, experimental and modelling contributions on the distribution and characterization of organic ligands in the ocean\, as well as their effect on the redox reactions of metals in seawater. In tandem\, this session brings together studies using radionuclides to investigate aspects of marine biogeochemistry from local to global scale: fluxes and export of particulate material\, sources and sinks of macro- and micro-nutrients\, elemental cycles at ocean margins (e.g. estuaries\, sediments\, hydrothermal vents\, air-sea interface)\, or rates of biological processes (e.g. biological export and remineralisation). Studies presenting advances in methodology\, novel applications of radionuclide tracers\, or using radioisotopes to quantify human impacts on ocean biogeochemistry are also welcome. \n08m: Wally Broecker: A Scientific Celebration of a Life in Geochemistry \nConveners: Sidney Hemming\, Edouard Bard\, Sigurdur Gislason\, Roberta L. Rudnick \nWally Broecker was a towering figure in geochemistry. His research themes that spanned many sub-fields of modern geochemistry\, notably radiocarbon dating (the topic of his Ph.D. thesis)\, chemical oceanography and atmospheric chemistry and their changes through time. He developed methods for dating and tracing processes in the Earth system and applied them to various natural archives such as sediments from the deep-sea and from lakes on land\, fossil corals from tropical islands\, speleothems from caves and varnish deposits from deserts. This allowed him to address myriad research questions\, including testing the orbital theory; determining paleo-hydroclimate in drylands and documenting abrupt climate change that involved coupling between atmosphere and ice-sheets dynamics and the general circulation of the global ocean.Wally became intensely interested in\, and worried about\, the fate of anthropogenic CO2 in the atmosphere\, ocean and biosphere and its consequences such as greenhouse warming and ocean acidification. He was among the first scientists to warn us about the negative aspect of global warming and pleaded for engineering solutions to capture and sequester fossil fuel CO2.Over his long and exceptional career\, Wally always had a powerful and positive influence on a large number of students\, post-docs\, collaborators and fellow scientists working in other institutions on all continents. This session is in honor of Wally’s legacy and in the spirit of his wide-ranging interests and generosity. \nIncludes the GEOTRACES talk: \nGEOTRACES: Inspired by GEOSECS to Investigate Trace Elements and their Isotopes in the Ocean Anderson R\, Francois R\, Frank M\, Henderson G\, Jeandel C & Sharma Mhttps://goldschmidt.info/2019/abstracts/abstractView?id=2019002892Wednesday 21 August 2019\, 10h15 \nGEOTRACES-related sessions: \n08f: The Role of Carbon in Regulating Climate States: Lessons from Earth’s Past \nConveners: Kate Littler\, Gerhard Kuhn\, Norbert Frank\, Thomas Chalk\, William Gray \nKeynotes: Jessica Tierney (University of Arizona)\, Robert (Bob) Anderson (LDEO – Columbia Univ.) \nThis session aims to bring together scientists from the proxy and model communities that study all aspects of past cold and warm states of the Earth’s climate system. We welcome model or proxy studies of biogeochemical cycles and climate change that bring new evidence to light of the concentration and movement of carbon between atmosphere\, biosphere\, oceans\, and sediments and its role in regulating the climate states. This is because Earth’s climate is strongly forced by the concentration of CO2 in the atmosphere on a number of different timescales and climate models rely on accurate information from carbon reservoirs to reconstruct our past and predict our future climate states. Therefore\, this session aims to gather work on reconstructing CO2 and/or its movements between reservoirs to narrow down on the primary mechanisms of climate change on geological timescales\, as well as divining our near future through past evidence of glacial CO2 changes\, long-term CO2 drawdown and release\, and major climate transitions. Submissions interrogating the nature of orbital scale climate variability from any period are strongly encouraged as well as those looking at modern processes of carbon regulation and uptake. \n10a: Silicate Alteration in Ocean Sediments and Synthetic Glasses: Process\, Consequence\, and Kinetics \nConveners: Wei-Li Hong\, Jianghui Du\, Isabelle Muller\, David A McKeown \nKeynote: Catherine Jeandel \nReverse weathering and alteration of silicate mineral-glass under low temperature is of fundamental importance in the source and sink of various elements\, planetary climate\, carbon cycling\, and considerations for long-term nuclear waste glass storage. Silicate glass stability is of concern to many scientific studies: basaltic glasses in geochemical systems\, nuclear waste glasses in their final repository\, and weathering of industrial or cultural heritage glass objects. These processes have been studied through field observations as well as by laboratory experiments. For example\, reverse weathering is known to acidify solution through the neo-formation of clay minerals\, which constitutes significant sinks for trace elements and alkalinity in the ocean and sediments. Weathering of marine silicate minerals\, on the other hand\, has been shown to buffer solution pH and promote the precipitation of authigenic carbonates by increasing alkalinity and the release of cations. The interaction of silicate glass and water has been investigated by laboratory leach tests that range from days to over 30 years. These leach studies have identified smectites concomitant with long-term glass stability at low leach rates\, as well as the common occurrence of rapid acceleration of glass alteration associated with zeolite formation at high temperatures or high ratios of glass surface area to leachant volume. Outstanding issues concerning silicate alteration that will be addressed in this session include: the impact on benthic fluxes of various elements in the ocean; the effect on the global elemental cycle and planetary climate; how the strength of these processes vary with time and space; the factors governing the formation of aluminosilicate minerals (such as zeolites and smectites)\, the associated kinetics during glass alteration and its modeling. The two keynote speakers will share their insights on how submarine weathering of lithogenic material affects benthic fluxes of macro- & micro-nutrients (Dr. Catherine Jeandel from LEGOS)\, and macroscopic to atomic scale silicate glass alteration (Dr. Stéphane Gin from CEA). \n  \n10h: The Oceanic Particle Flux and its Cycling within the Deep Water Column \nConveners: Maureen Conte\, Rut Pedrosa Pamies\, Phoebe Lam\, Henry Ruhl \nThe oceanic particle flux plays a major role in global elemental cycles\, the ocean uptake of carbon dioxide\, and the transfer of energy and matter to the deep ocean and sediments. The particle flux and its composition represent a dynamic balance between biological processes that generate large sinking particles in the upper ocean and particle cycling processes within the ocean interior that consume\, modify and produce new sinking particles\, including biologically-driven organic matter remineralization\, particle aggregation/disaggregation\, chemical scavenging\, and authigenic mineral precipitation. New observational platforms\, sampling methods and advances in chemical and molecular techniques (e.g.\, metabolomics\, metagenomics\, transcriptomics) allowing for expanded particle characterization are providing novel insights on particle flux transformations within the deep water column\, including the depth evolution of particle-associated microbial communities and the scavenging of dissolved and suspended materials associated with biological reprocessing of flux materials. Synthesis and modeling studies are providing increased understanding of linkages between ecosystem structure and global patterns in surface export and flux transfer efficiency to the deep ocean. This multidisciplinary session will bring together scientists under research themes related to geochemistry\, biology\, oceanography\, modeling and climatology to present the current status of our understanding of processes controlling the magnitude and composition of the oceanic particle flux\, its attenuation and transformation with depth\, and its coupling with associated biogeochemical cycles. Session presentations will describe novel findings and syntheses which\, in turn\, will highlight key knowledge gaps in the particle flux and its role in geochemical cycles. \n  \n12a: Hydrobiogeochemical Processes at the Sediment-Water Interface: Wetlands\, River Corridors and Coastal Zones \nConveners: Dipankar Dwivedi\, Xingyuan Chen\, Joseph Tamborski\, Valentí Rodellas\, Edward O’Loughlin\, Yamin Deng\, Virginie Sanial \nKeynote: Christof Meile (University of Georgia) \nTerrestrial-aquatic and surface-groundwater interfaces are transitional zones that play a vital role in controlling the exchange of water and chemical constituents between land and water systems. In terrestrial-aquatic interfaces (e.g.\, wetlands and lagoons) the movement of water and the biogeochemically catalyzed transformations of its constituents determine the mobility of nutrients and contaminants\, the emission of greenhouse gasses into the atmosphere\, carbon (C) cycling and sequestration in subsurface environments\, and the quality of water itself. Likewise\, groundwater-surface water interactions (e.g. hyporheic and porewater exchange\, terrestrial and submarine groundwater discharge) have long been recognized as an important component of the hydrological cycle and an essential pathway for the transfer of material (e.g. nutrients\, metals\, C\, and contaminants) to surface water bodies (e.g. coastal ocean\, streams\, lakes\, lagoons\, and wetlands). This session brings together studies focusing on hydrobiogeochemical exchanges occurring at terrestrial-aquatic and surface-groundwater interfaces\, and their impacts on freshwater and marine systems. We particularly welcome new contributions addressing i) geomorphological and hydrobiogeochemical processes (including redox dynamics and transformations of C\, nutrients\, metals\, and contaminants) occurring in wetland environments (sediments\, rhizosphere\, and water)\, coastal aquifers\, submarine groundwater discharge zones\, and hyporheic zones; ii) modeling of ecosystem processes; iii) the challenges of bridging across scales (e.g.\, molecular to landscape; regional to global-scale). Method-based contributions which address iv) omics and bioinformatics approaches for identifying microbial interactions\, and v) new methodologies and the combination of approaches to trace groundwater-surface water interactions and associated forcing mechanisms\, are also welcomed. \n  \n13f: Trace Elements Speciation: Novel Methodologies and Insights into Transformations Influencing their Global Biogeochemical Cycle \nConveners: Sylvain Bouchet\, Adrien Mestrot \nMany trace elements (TE) can be toxic (e.g.\, As\, Hg\, Sb) and/or essential (e.g.\, Cu\, I\, Se) for humans\, plants and wildlife. Some also play important roles in atmospheric processes\, e.g.\, S\, I and Br. To understand the biogeochemical cycle and effects of TE\, it is crucial not only to quantify them in environmental and biological compartments\, but also to determine their speciation. This entails the distribution of TE between specific chemical forms in term of electronic or oxidation state\, molecular structure or complexes formed with various ligands. Indeed\, the partitioning\, transport\, bioavailability\, bioaccumulation and toxic or beneficial effects of TE largely depend on their speciation. The goal of this session is to highlight recent advances (1) in methodologies\, using elemental\, molecular and/or spectroscopic techniques\, allowing the identification and/or quantification of TE species (2) in our mechanistic understanding of the biotic and/or abiotic transformations affecting TE species (e.g.\, alkylation/dealkylation\, oxidation/reduction\, colloid formation and sorption/desorption) and (3) in assessing fluxes of TE among aquatic\, terrestrial and atmospheric (eco)systems. Contributions to the session may include fundamental and applied research based on laboratory work\, field experiments and/or modeling approaches. Studies looking at the potential effects of on-going and future global changes\, such as climate change and eutrophication\, on the fate of TE and their species are also strongly encouraged. \n  \n13e: Radionuclides in the Environment: Modeling\, Experimental\, Scaling\, Controlling Chemical/Microbial/Hydrological Processes \nConveners: Peter H. Santschi\, Daniel Kaplan \nSince the onset of the Manhattan project\, fluxes of anthropogenic radionuclides through the environment increased. This has resulted in increased concentrations of a number of anthropogenic radionuclides in the various environmental reservoirs. Consequently\, there is a growing need to understand and predict the consequences of increased fluxes of anthropogenic radionuclide\, in relation to those of natural radionuclides. At the same time\, the input of both anthropogenic and natural radionuclides can provide us\, due to their radioactive decay\, with the ability to get insights into time and spatial scales of key chemical/microbial/hydrological processes. The objective of this session is increased understanding of biogeochemical processes that control radionuclide cycling and their consequences in natural and anthropogenic systems. The emphasis is on modeling\, experimental\, scaling\, controlling chemical/microbial/hydrological processes. Themes can include: 1) Radionuclide speciation in aquatic\, terrestrial and atmospheric compartments\, including particulate and colloidal phases\, and the role biological processes play in determining radionuclide mobility\, oxidation state and degree of organic complexation/chelation. 2) Radionuclides in environments that provide sinks of radionuclides in the geosphere\, including wetlands\, lake sediments and soils. 3) Controlling chemical/microbial/hydrological processes\, including dissolution from primary mineral or organic phases\, sorption and incorporation into secondary phases. \n  \n 
URL:https://www.geotraces.org/event/goldschmidt-2019/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20190708T080000
DTEND;TZID=Europe/Paris:20190718T170000
DTSTAMP:20260503T013513
CREATED:20190123T083828Z
LAST-MODIFIED:20190123T083828Z
UID:2107-1562572800-1563469200@www.geotraces.org
SUMMARY:27th IUGG General Assembly
DESCRIPTION:27th IUGG General Assembly Dates: 8-18 July\, 2019Location: Palais des Congrès in Montréal\, Québec\, Canada \nThe 27th International Union of Geodesy and Geophysics (IUGG) General Assembly will be held July 8-18\, 2019 at the Palais des Congrès in Montréal\, Québec\, Canada. This is a special opportunity for participants from Canada and from around the world to come together and share their science and culture. 2019 marks the 100th anniversary of IUGG; we will look back on the accomplishments of the previous century of Earth and space science research\, and forward to the next century of scientific advancement. Join us for a host of scientific activities\, including special public lectures\, keynote Union lectures and a wide variety of themed sessions. \nIAPSO is sponsoring or co-sponsoring 31 symposia covering a wide range of topics\, including several two linking to biogeochemistry (see below) but also subjects such as marine plastics and ocean acidification. \nThe program details can be found at the Assembly’s website: http://www.iugg2019montreal.com/iugg-program.html. Deadline for abstract submission in February 18th 2019. \nGEOTRACES relevant sessions: \n \nP02 – PHYSICS AND BIOGEOCHEMISTRY OF SEMI-ENCLOSED\, SHELF SEAS\, AND COASTAL ZONES \nConvener: Peter Zavialov (Russia) \nCo-Conveners: Jianping Gan (China)\, Osmar Moller Jr (Brazil)\, Katrin Schroeder (Italy) \nDescription \nThis interdisciplinary symposium provides a joint forum for oceanographers whose research focuses on physical\, chemical\, and biological processes in coastal zones\, semi-enclosed and shelf seas of the World\, as well as their responses to climate change and anthropogenic impacts. These areas are often characterized by complex interactions between land\, ocean\, and atmosphere\, they exhibit rich dynamics driven by a variety of feedbacks and forcing mechanisms. Marginal seas and coastal areas are particularly vulnerable to climate change effects and anthropogenic stressors. Given their limited geographical extension and their sometimes constricted connection to the open ocean\, these environments often exhibit shorter timescales in their responses to external forcing: this is why they are widely recognized as natural “laboratories” for studying oceanic processes and interactions between the physical\, biogeochemical and climatic spheres. They also play an exceptionally important role in ecosystem services and socio-economic issues and require careful governance measures to avoid or mitigate environmental deterioration. \nGathering experts from different regions\, the symposium will give a global perspective of the topic through comparison and elucidation of similarities and differences. Contributions on different regions are invited\, related to themes such as innovative observational\, theoretical\, experimental and modeling studies of the hydrodynamics\, marine biogeochemistry (e.g.\, nutrient dynamics\, primary production\, acidification\, algae blooms) and the influence these regional seas and coastal zones exert on the adjacent basins/oceans and on the global scale. Studies of past\, present and future climate variability are welcome\, as well as interdisciplinary studies on the bio-physical interactions in semi-enclosed and shelf seas. \nP09 – MARINE BIOGEOCHEMISTRY THROUGH TIME: NUTRIENT\, TRACE METAL\, OXYGEN\, AND CARBON CYCLING IN THE PAST\, PRESENT AND FUTURE \nConvener: Kate Hendry (UK) \nCo-Conveners: Zanna Chase (Australia)\, Katja Fennel (Canada)\, Patrick Rafter (USA) \nDescription \nOcean biogeochemistry is undergoing significant changes\, with likely effects on primary production and ecosystem health from massive human perturbations of the global carbon and nitrogen cycles. Future projections are highly uncertain\, but unlocking drivers and effects of biogeochemical reorganizations in Earth’s past may hold clues. \nThe aim of this symposium is to explore recent developments in our understanding of marine biogeochemistry at the interface of different disciplines. Topics could include limitation of primary production by micro-nutrients and macro-nutrients; the role of ecological interactions at the scales of populations\, assemblages and ecosystems; boundary processes including sedimentary cycling\, inputs from rivers\, groundwater\, the cryosphere and atmosphere; and physical movement that influences nutrient distribution and light availability by turbulent mixing\, mesoscale eddies and large-scale ocean circulation. We welcome contributions that offer a broad perspective from a wide range of disciplines\, including studies that utilise and bring together paleoclimate archives\, modern oceanographic observations\, and models.
URL:https://www.geotraces.org/event/27th-iugg-general-assembly/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20190611
DTEND;VALUE=DATE:20190613
DTSTAMP:20260503T013513
CREATED:20190121T142342Z
LAST-MODIFIED:20190121T142342Z
UID:2104-1560211200-1560383999@www.geotraces.org
SUMMARY:GEOTRACES Standards and Intercalibration Committee Meeting
DESCRIPTION:Standards and Intercalibration Committee MeetingDates: 11-12 June 2019Location: Old Dominion University\, Norfolk\, Virginia
URL:https://www.geotraces.org/event/geotraces-standards-and-intercalibration-committee-meeting-12/
CATEGORIES:GEOTRACES Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20190421
DTEND;VALUE=DATE:20190426
DTSTAMP:20260503T013513
CREATED:20190329T133423Z
LAST-MODIFIED:20191010T083223Z
UID:2108-1555804800-1556236799@www.geotraces.org
SUMMARY:SOLAS Open Science Conference
DESCRIPTION:SOLAS Open Science Conference\nDates: 21-25 April 2019\nLocation: Sapporo\, Japan \nFor further information: https://www.confmanager.com/main.cfm?cid=2778 \n\nGEOTRACES Special Session:  \nAtmospheric deposition of iron\, ocean biogeochemistry and marine emission of biological aerosols \nConveners: Akinori Ito (JAMSTEC)\, William M. Landing (Florida State University) and Douglas S. Hamilton (Cornell University) \nAtmospheric deposition of aerosols to the ocean has been suggested to modulate marine primary productivity. Marine organic material has been shown to be an important source of ice-nucleating particles (INP) in high-latitude environments\, and hence impacts the atmospheric energy balance. Significant progress has been made in our understanding of atmospheric inputs of labile iron (Fe) from natural and anthropogenic sources to the surface oceans. However\, there are still large uncertainties regarding the relative importance of different sources of aerosols\, the effects of atmospheric aerosol deposition on bioavailable Fe concentrations in the ocean and on the marine organic material and its role as INP. The discussion in this session focuses on problems and challenges in laboratory experiments and field measurements to improve the representations of trace metal biogeochemistry in atmosphere and ocean models\, in particular\, the two-way movement of aerosol material across the boundary between the atmosphere and ocean.
URL:https://www.geotraces.org/event/solas-open-science-conference-2/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20190223
DTEND;VALUE=DATE:20190303
DTSTAMP:20260503T013513
CREATED:20180921T130603Z
LAST-MODIFIED:20191010T083351Z
UID:2097-1550880000-1551571199@www.geotraces.org
SUMMARY:ASLO 2019\, Aquatic Sciences Meeting
DESCRIPTION:ASLO 2019\, Aquatic Sciences Meeting\nDates: 23 February – 2 March 2019\nLocation: San Juan\, Puerto Rico \nFor further information: https://aslo.org/sanjuan2019/main\n \n\nGEOTRACES sessions: \n\nSS51. New views on the biological transformation of metals in the marine environment \nRandelle Bundy\, University of Washington\nShane Hogle\, Massachusetts Institute of Technology\nKatherine Heal\, University of Washington\nKristen Buck\, University of South Florida\nP. Dreux Chappell\, Old Dominion University \n \nRecent results from the GEOTRACES program and other large-scale oceanographic surveys have provided compelling new insights into the distributions\, chemical speciation\, sources\, and sinks of trace metals. The bio-active trace metals such as iron\, copper\, cobalt\, zinc\, nickel and manganese are particularly compelling because they influence surface ocean primary productivity\, deep ocean carbon storage\, and atmospheric carbon dioxide concentrations in our modern earth system and over geologic timescales. There is still much to learn about the regeneration of bioactive metals from organic matter\, the influences of biological ligand production\, and the impacts of trace metal bioavailability in the ocean. Insights from recent biogeochemical studies have raised new questions related to the biogeochemical processes impacting the distributions of trace metals\, and novel methodological approaches are now revealing the molecular mechanisms that connect major bio-active trace metal cycles to the physiology\, ecology\, and evolution of marine microorganisms. However\, these techniques have only begun to be coupled with the wealth of existing geochemical knowledge afforded by existing large-scale programs. Here we welcome submissions relating to the cycling of bio-active trace metals\, particularly those using innovative techniques and novel modeling approaches. We also welcome studies from across temporal and spatial scales\, as well as experimental and modeling studies that bridge biological and geochemical cycling of trace elements. We hope this session will provide a forum for diverse scientific perspectives on the biogeochemical cycling of trace metals in the ocean. \n 
URL:https://www.geotraces.org/event/aslo-2019-aquatic-sciences-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20190211
DTEND;VALUE=DATE:20190214
DTSTAMP:20260503T013513
CREATED:20180905T074308Z
LAST-MODIFIED:20180905T074308Z
UID:2094-1549843200-1550102399@www.geotraces.org
SUMMARY:7th Kaplan Symposium: Tracers in the Sea
DESCRIPTION:7th Kaplan Symposium: Tracers in the SeaTrace Elements and their Isotopes in the Oceans\, Future Directions and Instrumental FrontiersDates: 11-13 February 2019Location: Eilat\, Israel \nFor detailed information on the scientific background\, venue\, schedule and registration\, please see the symposium website: https://sites.google.com/view/7th-kaplan-symposium \nRegistration and abstract deadline: 30 November2018 \nThemes \n· Trace element cycling in seawater and marine particulates· The role of atmospheric dust in marine biogeochemistry· Novel isotope systems in the oceans· Instrumental developments in marine geochemistry \nInvited speakers \nEric Achterberg\, GEOMAR\, Germany \nMark Altabet\, University Massachusetts Dartmouth\, USA \nBob Anderson\, Lamont-Doherty Earth Observatory\, Columbia University\, USA \nGideon Henderson\, Oxford University\, UK \nCatherine Jeandel\, LEGOS\, University of Toulouse\, France \nWilliam Landing\, Florida State University\, USA \nClaire Rollion-Bard\, Institut de Physique du Globe de Paris\, France \nSunil Kumar Singh\, Physical Research Laboratory\, Ahmedabad\, India
URL:https://www.geotraces.org/event/7th-kaplan-symposium-tracers-in-the-sea/
CATEGORIES:GEOTRACES Scientific Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20190106
DTEND;VALUE=DATE:20190110
DTSTAMP:20260503T013513
CREATED:20180129T085709Z
LAST-MODIFIED:20180129T085709Z
UID:2076-1546732800-1547078399@www.geotraces.org
SUMMARY:Fourth Xiamen Symposium on Marine Environmental Sciences (XMAS-IV)
DESCRIPTION:Fourth Xiamen Symposium on Marine Environmental Sciences (XMAS)Dates: 6-9 January 2019Location: Xiamen\, China \nFor further information: http://mel.xmu.edu.cn/conference/4xmas \n \nThe deadline for abstract submission is Aug 31\, 2018.  \nGEOTRACES session: \nThe role of trace metals in controlling structure and function of microbial communities in contemporary oceans  \nPunyasloke Bhadury\, Yeala Shaked\, Maria Maldonado\, Yihua Cai\, Chris Bowler \nTrace metals are essential for life\, catalyzing key cellular reactions that influence ocean productivity\, biodiversity\, and biogeochemical cycling of the major elements including carbon and nitrogen. Essential trace metals\, such as iron and zinc\, are usually present at very low dissolved concentrations in seawater and are mostly found as stable organic complexes. Indeed\, in large oceanic regions trace metals control the physiology and ecological functioning of microbial communities. There is a need to understand how microbial communities including nano and pico-phytoplankton acquire essential metals and how biological activity is affected by metal availability and resulting consequences for cycling of essential elements such as carbon\, nitrogen and phosphorus. To understand many of these questions\, large international research programs such as GEOTRACES have been initiated incorporating trans-disciplinary approaches to understand mechanistic links between geochemical and biological variability. In this session\, we welcome contributions from researchers\, including early career scientists\, investigating the role of trace metals on the structure and functioning of microbial communities including marine phytoplankton across ecosystems. In particular\, we welcome submissions in areas which address the link between trace metals and isotopes with a focus on microbial communities mediating the cycling of major nutrients in contemporary oceans\, metal uptake and competition between microbes for metal resources and the role of trace metals in shaping cellular function and evolution. \nSession ID: C3 [Bio-GEOTRACES]
URL:https://www.geotraces.org/event/fourth-xiamen-symposium-on-marine-environmental-sciences-xmas-iv/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20181206
DTEND;VALUE=DATE:20181208
DTSTAMP:20260503T013513
CREATED:20181107T100337Z
LAST-MODIFIED:20181107T100337Z
UID:2102-1544054400-1544227199@www.geotraces.org
SUMMARY:GEOTRACES Standards and Intercalibration Committee Meeting
DESCRIPTION:Standards and Intercalibration Committee MeetingDates: 6-7 December 2018Location: MIO\, Marseille\, France
URL:https://www.geotraces.org/event/geotraces-standards-and-intercalibration-committee-meeting-11/
CATEGORIES:GEOTRACES Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20181203
DTEND;VALUE=DATE:20181206
DTSTAMP:20260503T013513
CREATED:20171120T135914Z
LAST-MODIFIED:20171120T135914Z
UID:2067-1543795200-1544054399@www.geotraces.org
SUMMARY:GEOTRACES-PAGES Synthesis Workshop
DESCRIPTION:GEOTRACES-PAGES Synthesis workshop: Trace Element and Isotope Proxies in PaleoceanographyDates: 3 – 5 December 2018Location: Aix-Marseille\, France. \nFor further information: Please visit the Workshop web page: https://geotracespages.sciencesconf.org/ \nReport from the Workshop: https://doi.org/10.22498/pages.27.1.35 \nBackground \nThe joint GEOTRACES/PAGES workshop on the synthesis of geochemical proxies used in paleoceanography aims to establish the strength\, limits and conditions of application of a given proxy. \nThere is a vital need for a synthesis of geochemical proxies used in paleoceanography to improve interpretation of commonly used proxies. This synthesis is timely in view of the wealth of new data coming from GEOTRACES and contemporary programs. \nThe workshop will bring together expertise from GEOTRACES\, PAGES\, and the broader oceanographic community of observationalists and modellers that will exploit new data to provide a more rigorous calibration of proxies and interpretation of their records. \nWorking groups \nAll participants will choose 1 or 2 working groups: \nBiological productivityOceanic circulationParticle flux and sedimentation ratePhysical and/or biogeochemical modelling. \nTravel support \nFinancial travel support will be available for about 60 participants in the form of subsidies for airfare and ground transportation (capped depending on travel origin). Hotel rooms and meals will be provided by the organizers: 2 nights for participants from Europe and 3 nights for participants from overseas (4 nights for US participants). Those who can cover their own travel expenses are encouraged to do so. \nThe planning committee will select participants to receive travel support based on a review of pre-registration information received by the deadline of 1 June 2018. The anticipated contribution to the workshop goals will be used as the basis for selection among the applicants. \nDecisions will be communicated to participants in July. Selected participants will then be invited to finalize their registration for the workshop. The organizers will take care of the hotel booking for funded participants for the duration of the workshop. \nSponsors \nPAGES\, GEOTRACES\, SCOR\, US-NSF\, CNRS-INSU-LEFE\, CEREGE\, Aix-Marseille Université and John Cantle Scientific Ltd. \nWorkshop planning committee \nRobert Anderson – Lamont-Doherty Earth Observatory\, USADamien Cardinal\, LOCEAN\, Sorbonne Université\, FranceMartin Frank – GEOMAR Helmholtz Centre for Ocean Research\, Kiel\, GermanyChris Hayes – University of Southern Mississippi\, USAGideon Henderson – University of Oxford\, UKTristan Horner – Woods Hole Oceanographic Institution\, USACatherine Jeandel – Observatoire Midi Pyrenees\, FranceSusan Little – Imperial College\, UKMarie-France Loutre – PAGES International Project Office\, SwitzerlandThomas Marchitto – University of Colorado\, USAElena Masferrer Dodas – GEOTRACES International Project Office\, FranceKatharina Pahnke – Max Planck Research Group – Marine Isotope Geochemistry\, GermanyKazuyo Tachikawa – CEREGE\, FranceLaurence Vidal – Aix-Marseille Université\, FranceJimin Yu – Australian National University\, AustraliaLiping Zhou – Peking University\, China \nReport \nThe Report from the Workshop is available to read and download here. It is also available on PAGES web site here. \nFurther information \nIf you have questions regarding the workshop\, please contact Kazuyo Tachikawa or Laurence Vidal. \nWorkshop information is available on the official workshop website: https://geotracespages.sciencesconf.org/ \n \n 
URL:https://www.geotraces.org/event/geotraces-pages-synthesis-workshop/
CATEGORIES:GEOTRACES Scientific Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20181108
DTEND;VALUE=DATE:20181111
DTSTAMP:20260503T013513
CREATED:20181107T100122Z
LAST-MODIFIED:20181107T100122Z
UID:2101-1541635200-1541894399@www.geotraces.org
SUMMARY:BioGEOTRACES Workshop
DESCRIPTION:BioGEOTRACES WorkshopDates: 8-10 November 2018Location: Johnsson Center\, Woods Hole\, USA \nFor further information\, please contact Maite Maldonado. \nAgenda \nThe agenda of the meeting is available to download.
URL:https://www.geotraces.org/event/biogeotraces-workshop/
CATEGORIES:GEOTRACES Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180919
DTEND;VALUE=DATE:20180922
DTSTAMP:20260503T013513
CREATED:20180905T102418Z
LAST-MODIFIED:20180905T102418Z
UID:2096-1537315200-1537574399@www.geotraces.org
SUMMARY:BioGEOTRACES Japan
DESCRIPTION:BioGEOTRACES JapanDates: 19-21 September 2018Location: Nagasaki University\, Nagasaki\, Japan \nProgramme \nThe Programme of this workshop is available to download.
URL:https://www.geotraces.org/event/biogeotraces-japan/
CATEGORIES:GEOTRACES Scientific Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180812
DTEND;VALUE=DATE:20180818
DTSTAMP:20260503T013513
CREATED:20171106T151733Z
LAST-MODIFIED:20171106T151733Z
UID:2063-1534032000-1534550399@www.geotraces.org
SUMMARY:Goldschmidt 2018
DESCRIPTION:Goldschmidt 2018Dates: 12 – 17 August 2018Location: Boston\, USA \nFor further information: https://goldschmidt.info/2018/index \nAbstract submission deadline: 30 March 2018 \nGEOTRACES session: \n \nSession 07i: New Insights in Marine Trace Element Biogeochemistry \nConveners: Christian Schlosser\, Florian Scholz\, Rene Boiteau\, Tim Conway\, Daniel Ohnemus\, Jennifer McKay\, William Homoky and Jessica Fitzsimmons. \nThe cycling of trace elements in the ocean is strongly influenced by a combination of biotic and abiotic processes including biological utilization\, water mass circulation\, sources and sinks\, and interactions with particles. Many trace elements are essential for life\, while others may be toxic pollutants. Therefore\, understanding the factors that control the distribution\, reactivity\, and bioavailability of these elements is important for predicting their effect on ecosystems and climate\, and for using them as tracers of ocean processes. Recent advances in oceanography have begun to clarify the unique sources and chemical forms of these elements throughout the ocean. Examples include better constraints on the cycling and sources of dissolved elements by isotopic analyses\, improved parametrization of benthic metal processes and fluxes in biogeochemical models\, revelation of particulate and colloidal metal phases by size-partitioned analyses\, and elucidation of siderophore\, humic\, and mineral forms of metals using novel applications of electrochemical\, mass spectrometric\, and x-ray spectroscopic methods. This session solicits submissions highlighting new findings about the processes that influence the marine biogeochemistry of marine trace elements and their isotopes in the past and present. We invite contributions that focus on the study of elemental isotope fractionation\, biological uptake and remineralization\, exchange processes at the sediment-bottom water and hydrothermal interfaces\, metal speciation and redox chemistry\, and biogeochemical modeling. Abstracts concerning new insights on elemental cycling from GEOTRACES ocean sections and process studies on the cycling of trace elements\, and any other works focused on understanding the transformations of metals from the molecular to global scale are strongly encouraged.  \nGEOTRACES-related session: \nSession 07l: Carbon Storage in the Ocean now and over Time \nConveners: Laura Robinson\, Gideon Henderson\, Christopher Hayes\, Barbel Honisch and Joe Stewart. \nKeynote speaker: Richard Zeebe (University of Hawaii) \nThis session invites contributions that relate to mechanisms through which the oceans cycle and store carbon. We welcome studies that consider the natural system’s capacity to store carbon today and over geologic timescales\, the rates of carbon cycle processes\, and the biogeochemical pathways involved in the carbon cycle. We also welcome efforts to examine modern day geoengineering of the ocean’s biogeochemical systems. \n  \nSession 07m: Sedimentary biogeochemical cycling along continental margins: role of climate\, tectonic setting\, and oceanographic regimes \nConveners:  Sian Henley\, Johan Faust\, Silke Severmann\, Robert Aller \nContinental margins are regions of intense diagenetic cycling\, sediment-water fluxes\, and burial of biogenic and lithogenic debris.  Margins are generally characterized by high biological productivity and sediment accumulation rates. However\, specific modes of benthic elemental cycling\, authigenic mineral formation\, and storage are strong functions of depositional environment\, including physical dynamics and sediment sources.  The effects of climate change\, such as decreasing sea-ice in the higher latitudes or changing precipitation patterns in drainage basins\, have the potential to greatly alter benthic cycling and the exchange between sediments and the water column.   This session will explore and contrast benthic biogeochemical cycling along continental margins from a range of climatic and weathering regimes (e.g.\, drainage basin weathering\, Corg reactivity)\, tectonic setting (active\, passive margins)\, sediment types (permeable\, impermeable)\, coastal processes (deltaic\, non-deltaic)\, and oceanographic conditions (e.g.\, upwelling\, ice cover\, ventilation – oxygenation\, tidal range). We particularly welcome contributions that focus on the origin\, processing\, fate\, and characterization of organic and inorganic carbon\, nutrients and metals within the context of modern climate\, oceanographic and ecosystem change.
URL:https://www.geotraces.org/event/goldschmidt-2018/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180812
DTEND;VALUE=DATE:20180813
DTSTAMP:20260503T013513
CREATED:20180306T100700Z
LAST-MODIFIED:20180306T100700Z
UID:2082-1534032000-1534118399@www.geotraces.org
SUMMARY:Introduction to the Awesome OCIM
DESCRIPTION:Introduction to the Awesome OCIMDates: 12 August 2018Location: Boston\, USA \nDownload the annoucement as pdf \n  \nIntroduction to the Awesome OCIM \nWorkshop\, August 12 th\, 2018\, MIT campus\, Boston MA\, 10 AM to 5 PM (Sunday preceding Goldschmidt 2018) \nContact sethjohn@usc.edu by June 1st to register\, including a few sentences about who you are and why you would like to attend. \n\nThe Awesome OCIM is a new modeling toolbox designed to bring cutting-edge transport matrix models to a wide community of users. This workshop will introduce the AO to the GEOTRACES community and the wider community of chemical oceanographers. Modeling novices welcome!  \nThe AO uses Ocean Circulation Inverse Model (OCIM) transport for realistic global 3d circulation. Within this circulation\, broad features of the distribution of many marine TEIs can be achieved by combining just a few processes. For example\, iron might be modeled as a combination of atmospheric and sedimentary sources\, biological uptake\, and remineralization. Thorium might be modeled with radioactive production and decay\, plus scavenging. A clickable interface allows the user to include processes such as these\, and tune their magnitude to match observed GEOTRACES data. Further adjustments to biogeochemical cycling can be achieved with changes to the underlying Matlab code. \nThis workshop is designed for graduate students\, postdocs\, and faculty with an interest in learning more about the AO. No previous experience with modeling is necessary. All participants will be given the latest version of the AO software\, and talks will include examples of how the AO and other similar OCIMs are used in research\, an introduction to using the AO through the GUI and underlying Matlab code\, and a hands-on opportunity to recreate the global distribution of your favorite TEI using the AO. Also there will be sandwiches. \n \n\n\n\n \n \n\n\n\nExample Graphical User Interfaces (GUIs) for running the AO and plotting model output with the AO. The behavior of many TEIs in the ocean can be approximated by combining a few key processes such as dust and hydrothermal inputs\, biological uptake and remineralization\, radioactive decay\, scavenging\, etc. Both GEOTRACES data and model output can then be plotted using a separate GUI. \n \nAn example of model output for a “cadmium-like” tracer with uptake and remineralization similar to PO4. This figure illustrates the 2° latitudinal and longitudinal resolution of the AO\, with 24-box depth resolution.
URL:https://www.geotraces.org/event/introduction-to-the-awesome-ocim/
CATEGORIES:GEOTRACES Scientific Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180726
DTEND;VALUE=DATE:20180727
DTSTAMP:20260503T013513
CREATED:20180718T095032Z
LAST-MODIFIED:20180718T095032Z
UID:2092-1532563200-1532649599@www.geotraces.org
SUMMARY:GEOTRACES-Taiwan Training Workshop
DESCRIPTION:GEOTRACES Taiwan Training WorkshopDates: 26 July 2018Location: Taipei \nAgenda and List of participants \nThe Agenda and the list participants is available to download. 
URL:https://www.geotraces.org/event/geotraces-taiwan-training-workshop/
CATEGORIES:GEOTRACES Scientific Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180723
DTEND;VALUE=DATE:20180726
DTSTAMP:20260503T013513
CREATED:20171122T081751Z
LAST-MODIFIED:20171122T081751Z
UID:2068-1532304000-1532563199@www.geotraces.org
SUMMARY:2018 GEOTRACES Scientific Steering Committee Meeting
DESCRIPTION:2018 GEOTRACES SSC MeetingDates: 23-24 July 2018Location: Taipei\, Taiwan \n 
URL:https://www.geotraces.org/event/2018-geotraces-scientific-steering-committee-meeting/
CATEGORIES:GEOTRACES Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180610
DTEND;VALUE=DATE:20180616
DTSTAMP:20260503T013513
CREATED:20180118T145424Z
LAST-MODIFIED:20180118T145424Z
UID:2075-1528588800-1529107199@www.geotraces.org
SUMMARY:ASLO 2018 Summer Meeting
DESCRIPTION:Association for the Sciences of Limnology and Oceanography (ASLO) 2018 Summer Meeting Dates: 10 -15 June 2018Location: Victoria\, BC\, Canada \nFurther information: https://aslo.org/victoria2018/main \nGEOTRACES-related sessions: \nSS82: EMERGING MODELS OF TRACE METAL BIOAVAILABILITY TO AQUATIC ORGANISMS \nDavid Semeniuk\, Minnow Environmental Inc. (dsemeniuk@minnow.ca)Randelle Bundy\, University of Washington (rbundy@uw.edu)Anne Cremazy\, U. British Columbia (acremazy@zoology.ubc.ca) \nWell established equilibrium-based trace metal bioavailability models for aquatic organisms (e.g.\, the Free Ion Activity Model and Biotic Ligand Model) have proven useful for predicting the bioavailability and toxicity of metals in aqueous environments for a variety of organisms\, from phytoplankton to fish. These models propose that metal bioavailability is proportional to the concentration of the free metal ion in solution. Thus\, given enough information about the chemical environment\, one can predict metal bioavailability and potential toxicity. Yet\, emerging laboratory and field studies indicate that these models do not accurately predict metal bioavailability under all environmentally realistic conditions\, such as when salinity and pH varies\, when natural organic ligands and bioavailable metabolites are present\, and at low trace metal concentrations (as opposed to high concentrations typical of industrial effluents). In light of this\, this session seeks new work that explores modified or alternative models for trace metal bioavailability to aquatic organisms\, and their ecological implications. We invite research concerning both experimental and biophysical chemical modeling of trace metal bioavailability\, including the roles of chemical speciation\, kinetic controls on metal bioavailability\, and the influence of metal and organic ligand mixtures on metal speciation\, bioavailability and toxicity.
URL:https://www.geotraces.org/event/aslo-2018-summer-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180512
DTEND;VALUE=DATE:20180518
DTSTAMP:20260503T013513
CREATED:20171116T144837Z
LAST-MODIFIED:20171116T144837Z
UID:2065-1526083200-1526601599@www.geotraces.org
SUMMARY:Training Workshop on Metal Speciation and Isotopes
DESCRIPTION:Training Workshop on Metal Speciation and IsotopesDates: 12-17 May 2018Location: Xiamen\, China \nWorkshop web site: http://mel.xmu.edu.cn/conference/geotraces/Download first announcement. \nDeadline for applications:  23 February 2018. \nOverview \nA training workshop on metal speciation and isotopes in the ocean for GEOTRACES and beyond will be organized by State Key Laboratory of Marine Environmental Science (MEL) in Xiamen\, China. The purpose of this workshop is to train graduate students and professionals who are interested in or will study trace metal and isotope biogeochemistry. \nIt is hoped that the workshop will also serve to enhance capacity of GEOTRACES-related studies. The training will include classroom lectures and hands-on experiments in the laboratory equipped with a variety of measurement tools. Subjects to be covered include electrochemistry\, metal speciation\, trace metals and their isotopes. \nOrganizing Committee \nDr. George Luther III\, University of Delaware\, USADr. Edward Boyle\, Massachusetts Institute of Technology\, USA Dr. Deli Wang\, Xiamen University\, ChinaDr. Minhan Dai\, Xiamen University\, ChinaDr. Yihua Cai\, Xiamen University\, China \nFor further information \nPlease see the first announcement or visit the Workshop web site.
URL:https://www.geotraces.org/event/training-workshop-on-metal-speciation-and-isotopes/
CATEGORIES:GEOTRACES Scientific Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180505
DTEND;VALUE=DATE:20180507
DTSTAMP:20260503T013513
CREATED:20180430T132235Z
LAST-MODIFIED:20180430T132235Z
UID:2087-1525478400-1525651199@www.geotraces.org
SUMMARY:GEOTRACES-China Cruise Planning Workshop
DESCRIPTION:GEOTRACES-China Cruise Planning WorkshopDates: 5-6 May\, 2018Location: Xiamen\, China \nAgenda and list of participants \nThe Agenda and list of participants of the meeting are available to download. 
URL:https://www.geotraces.org/event/geotraces-china-cruise-planning-workshop/
CATEGORIES:GEOTRACES Cruise Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180502
DTEND;VALUE=DATE:20180504
DTSTAMP:20260503T013513
CREATED:20180516T072206Z
LAST-MODIFIED:20180516T072206Z
UID:2089-1525219200-1525391999@www.geotraces.org
SUMMARY:GEOTRACES IDP 2017 data with Ocean Data View
DESCRIPTION:GEOTRACES IDP 2017 data with Ocean Data ViewDates: 2-3 May 2018 Location: Qingdao\, China \nBackground \nA hands-on workshop to teach standard and advanced Ocean Data View (ODV) methods for the exploration and scientific analysis of environmental data will be held on May 2 and 3 2018\, Qingdao\, China.  During the workshop\, the GEOTRACES Intermediate Data Product 2017 (IDP2017) will be used as example dataset. For the day 1\, participants will learn how to use ODV software\, create map\, property-property plots\, sections\, surface plots. In addition\, participants will also learn how to create ODV data file with their own data set. For the day 2\, participants will be invited to give presentations based upon the topics they have interest. Lastly\, participants will learn some tips of advanced level of ODV on how to work on their own dataset. \nParticipants are encouraged to bring their own laptop computer for use during the hands-on sessions of the workshop. All computers should be prepared before the workshop by installing the latest version of the ODV software (ODV 5.0) and downloading the data set.  \nOrganizers \nDr. Qian Liu\, Ocean University of China\, China. Dr. Mariko Hatta (lecturer)\, University of Hawaii\, US. Dr. Jingling Ren\, Ocean University of China\, China. Dr. Meixun Zhao\, Ocean University of China\, China. Dr. Jing Zhang\, University of Toyama\, Japan. \nReport \nThe report of the Workshop including the programme and the results of a pre and post workshop survey is available to download here.
URL:https://www.geotraces.org/event/geotraces-idp-2017-data-with-ocean-data-view/
CATEGORIES:GEOTRACES Training Activities
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180417
DTEND;VALUE=DATE:20180419
DTSTAMP:20260503T013513
CREATED:20171122T081924Z
LAST-MODIFIED:20220601T095947Z
UID:2069-1523923200-1524095999@www.geotraces.org
SUMMARY:2018 GEOTRACES Data Management Committee Meeting
DESCRIPTION: \n 
URL:https://www.geotraces.org/event/2018-geotraces-data-management-committee-meeting/
CATEGORIES:GEOTRACES Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180307
DTEND;VALUE=DATE:20180310
DTSTAMP:20260503T013513
CREATED:20171024T094752Z
LAST-MODIFIED:20171024T094752Z
UID:2062-1520380800-1520639999@www.geotraces.org
SUMMARY:US GEOTRACES GP15 Pre-cruise Meeting
DESCRIPTION:US GEOTRACES GP15 Pre-cruise MeetingDates: 7-9 March\, 2018Location: Norfolk\, Virginia\, USA \nAgenda \nThe Agenda of the meeting is available to download.  \nList of participants \nThe List of participants is available to download. 
URL:https://www.geotraces.org/event/us-geotraces-gp15-pre-cruise-meeting/
CATEGORIES:GEOTRACES Cruise Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180211
DTEND;VALUE=DATE:20180217
DTSTAMP:20260503T013513
CREATED:20160415T123518Z
LAST-MODIFIED:20160415T123518Z
UID:2015-1518307200-1518825599@www.geotraces.org
SUMMARY:2018 Ocean Sciences Meeting
DESCRIPTION:2018 Ocean Sciences Meeting Dates: 11-16 February 2018Location: Portland\, Oregon\, USA. \nFor more information: http://osm.agu.org/2018/# \nGEOTRACES and GEOTRACES related Town Halls: \nRelease of new GEOTRACES Data ProductWednesday\, February 14\, 2018\, 12:45 PM – 01:45 PMOregon Convention Center – Oregon Ballroom 201 Room has changed! \nGEOTRACES\, an international study of the marine biogeochemical cycles of trace elements and their isotopes\, has released its second data product (IDP2017).  The new data product expands greatly on the first collection of results released in 2014 in two important ways: 1) by adding a substantial body data from new cruises and 2) by adding additional datasets not available in the 2014 data product from cruises across the five world Oceans (e.g. aerosols\, isotopes and biological parameters that support the emerging BioGEOTRACES initiative). This expanded set of parameters available in the IDP2017\, ranging across micronutrients\, contaminants\, radioactive and stable isotopes and a broad suite of hydrographic parameters used to trace water masses provides an unprecedented means to understand the role of trace elements in shaping the functioning of the Ocean system.  We invite everyone to this town hall to learn about accessing IDP2017 and how it can be used for interdisciplinary research and teaching applications: http://www.bodc.ac.uk/geotraces/data/idp2017/ \nOrganizers: Robert F Anderson\, Columbia University of New York; Alessandro Tagliabue\, University of Liverpool; Gregory A Cutter\, Old Dominion University and Maite Maldonado\, University of British Columbia. \nDeveloping a framework for trace element\, isotope\, and other biogeochemical research in the Gulf of Mexico and Caribbean SeaTuesday\, February 13\, 2018\, 12:45 PM – 01:45 PMOregon Convention Center – Oregon Ballroom 201 Room has changed! \nIn addition to their dynamical influence on the formation of the Gulf Stream\, the Gulf of Mexico and Caribbean Sea are strongly affected by continental margin processes such as major river inputs and significant submarine groundwater discharges. GEOTRACES studies have increasingly demonstrated the importance of ocean margins in affecting trace element and isotope (TEI) fluxes to the open ocean. Given the importance of these marginal fluxes for cycling of carbon and nutrients\, the Gulf of Mexico has been a regional focus for recent OCB activities. However\, these activities\, as well as the 2010 Deepwater Horizon oil spill\, have revealed major gaps in our understanding of how inputs to the shelf influence biogeochemical and biological processes in open waters\, especially with regard to TEIs. Most such Gulf studies have focused on the Louisiana and West Florida shelves\, with little attention to open waters and interactions with the Loop Current. The steering committees of US GEOTRACES and OCB are beginning a conversation devoted to TEI research in the Gulf of Mexico and Caribbean. We invite GEOTRACES\, OCB\, and other ocean scientists interested in these marginal seas to discuss processes of interest\, existing programs and data sets\, and potential steps forward. \nOrganizers: Alan M Shiller\, University of Southern Mississippi; Heather M Benway\, Woods Hole Oceanographic Inst.; Robert F Anderson\, Columbia University & Lamont-Doherty Earth Observatory; Angela N Knapp\, Florida State University; Benjamin S Twining\, Bigelow Lab for Ocean Sciences and Kristen N Buck\, University of South Florida \nUpdate on the Second International Indian Ocean Expedition (IIOE-2)Monday\, February 12\, 2018\, 12:45 PM – 01:45 PMOregon Convention Center – D135-D136 \nThe second International Indian Ocean Expedition (IIOE-2) was launched on December 2015 and it will run through 2020 and beyond. This session will provide an update on international research activities that are being undertaken and planned in IIOE-2 and also report on the outcomes of a recent US Indian Ocean Science Planning workshop. The session will also present the mechanisms for involvement of interested scientists in IIOE-2 activities. \nOrganizers: Raleigh R Hood\, Michael J McPhaden and Lynne D Talley. \nGEOTRACES and GEOTRACES related sessions: \nThe Behavior of Trace Elements and Isotopes in Different Ocean Basins: New Insights from Comparisons and ContrastsSession ID#: 28118 Wednesday\, February 14\, 2018\, 08:00 AM – 10:00 AM\, 02:00 PM – 04:00 PMPosters: Wednesday\, February 14\, 04:00 PM – 06:00 PM \nSession Description: \nRecent international programs such as GEOTRACES have been examining the biogeochemical cycling of trace elements and isotopes (TEIs) in the world’s oceans to reveal the mechanisms and rates affecting their concentrations\, distributions\, chemical forms\, and interactions with organisms. In addition to studies by individual investigators\, the accumulating results show many similarities\, but some surprising differences between ocean basins\, with a classic example being the regionally-specific Cd/PO4 relationships. In the same way that deviations from the Redfield ratio of N/P between ocean basins\, known since the 1970s GEOSECS program\, provide insight into nitrogen cycle processes\, what can we learn from the comparisons and contrasts of TEIs\, and what tools are needed to explore and test these observations? This session seeks presentations from the observational and modeling communities on lessons learned from inter basin TEI data sets with respect to inputs to\, cycling within\, and exports from the world’s oceans. In addition we invite contributions that consider how TEI distributions\, their chemical speciation\, and interactions with micro-organisms shape microbial community structure and productivity in various ocean basins. \nPrimary Chair:  Gregory A Cutter\, Old Dominion University\, Ocean\, Earth and Atmospheric Sciences\, Norfolk\, VA\, United States \nCo-chairs:  Adrian Burd\, University of Georgia\, Athens\, GA\, United States\, Jay Thomas Cullen\, University of Victoria\, Victoria\, BC\, Canada and Tung-Yuan Ho\, Research Center for Environmental Changes Academia Sinica\, Taipei\, Taiwan \nAbiotic and Biotic Retention\, Recycling\, and Remineralization of Metals in the OceanSession ID#: 23502 Monday\, February 12\, 2018\, 04:00 PM – 06:00 PM and Tuesday\, February 13\, 2018\, 08:00 AM – 10:00 AM Posters: Monday\, February 12\, 2018\, 04:00 PM – 06:00 PM \nSession Description: \nTrace metals shape both the biogeochemical functioning and the biological structure of oceanic provinces\, and considerable insight into trace metal distributions have been gleaned from international programs like GEOTRACES. To date\, observational and modelling efforts have mainly focused on modes of external metal supply from different sources. While this has yielded important advances\, we also know that metals undergo key internal transformations such as biotic uptake\, scavenging\, recycling\, and remineralization.  These internal transformations play crucial roles in shaping the biogeochemical cycling of metals by governing their bioavailability\, oceanic distributions\, and residence times. In this session we solicit presentations that address key questions regarding the abiotic and biotic processes regulating (i) the retention timescale for metals in the upper ocean\, (ii) surface ocean metal recycling and bioavailability\, (iii) the subsurface regeneration length scales for metals in the ocean interior\, and (iv) the role of mineral versus organic characteristics of sinking particles on metal scavenging.  We also seek presentations that provide insights into how these key questions are mediated by differing physico-chemical and microbial processes in contrasting ocean settings. Presentations showing insights from the diverse standpoints of biogeochemical oceanography and molecular ecology\, from both observational and modelling perspectives\, are strongly encouraged. \nPrimary Chair:  Philip W Boyd\, University of Tasmania\, Institute for Marine and Antarctic Studies\, Hobart\, Australia \nCo-chairs:  Kristen N Buck\, University of South Florida Tampa\, College of Marine Science\, Tampa\, FL\, United States; University of South Florida\, College of Marine Science\, St. Petersburg\, FL\, United States\, Jessica N Fitzsimmons\, Texas A&M University\, Department of Oceanography\, United States and Alessandro Tagliabue\, University of Liverpool\, Liverpool\, United Kingdom \nThe Dawn of BioGEOTRACES: Metal-Microbe Interactions in the OceanSession ID#: 27768Thursday\, February 15\, 2018\, 08:00 AM – 12:30 AMPosters: Thursday\, February 15\, 2018\, 04:00 PM – 06:00 PM \nSession Description: \nTrace metals are essential for life\, catalysing key cellular reactions which then govern patterns of ocean fertility and biodiversity. Fundamental in this regard are the ways in which ocean microbes acquire essential metals and how biological activity is affected by metal availability. 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 new high resolution geochemical data from the international GEOTRACES program. It is now timely to bring together insights from these different disciplines\, spanning observation and modelling approaches to better understand how microbial activity\, diversity and ecology is shaped by interactions with trace metals over different space and time scales. By linking across disciplines\, there is the potential to develop the mechanistic understanding required to inform the ecological and biogeochemical models we rely on for testing hypotheses and projecting the impacts of ocean change. We are specifically interested in contributions that address (i) metal uptake and competition between microbes for metal resources\, (ii) how microbes adapt their physiology to metal scarcity and varied supply and (iii) how trace metals shape cellular function and evolution. \nPrimary Chair:  Adrian Marchetti\, University of North Carolina\, at Chapel Hill\, Department of Marine Sciences\, Chapel Hill\, NC\, United States \nCo-chairs:  Maria Teresa Maldonado\, University of British Columbia\, Vancouver\, BC\, Canada\, Alessandro Tagliabue\, University of Liverpool\, Liverpool\, United Kingdom and Yeala Shaked\, Hebrew University\, Interuniversity Institute for Marine Sciences\,\, Eilat\, Israel \n  \nBiogeochemical Processes Across Oxic-Anoxic TransitionsSession ID#: 28621Monday\, February 12\, 2018\, 08:00 AM – 10:00 AM\, 10:30 AM – 12:30 PMPosters:  Monday\, February 12\, 2018\, 04:00 PM – 06:00 PM \nSession Description: \nA suite of metabolically and chemically important oxidation-reduction reactions occur through the transitions from oxic to anoxic regions of the ocean. These reactions drive nutrient availability and metal solubility\, as well as organic matter production\, consumption\, and preservation. As oxygen minimum and deficient zones expand\, redox reactions in low to no oxygen environments are becoming globally more important\, both for the nitrogen and carbon cycles and also for trace metals. Understanding such environments can provide an important analogue for ocean chemistry and microbial life in the Precambrian\, prior to the great oxygenation events. This session seeks to bring together geochemical\, biological\, and physical scientists working on low oxygen and anoxic regions\, in order to create an integrated picture of biogeochemistry in these environments. Presentations from observational\, experimental\, or modeling standpoints on nutrients\, trace elements\, dissolved gases\, isotope systematics\, microbiology\, biological productivity\, or physical drivers in these regions are all invited. We especially encourage submissions investigating the redox transition in the water column or sediments of restricted basins such as Saanich Inlet and the Black Sea\, as well as GEOTRACES and open-ocean studies of settings such as the Eastern Tropical Pacific\, North Atlantic\, and Indian OMZs. \nPrimary Chair:  Jeffry V Sorensen\, University of Victoria\, School of Earth and Ocean Sciences\, Victoria\, BC\, Canada \nCo-chairs:  Roberta Claire Hamme\, University of Victoria\, School of Earth and Ocean Sciences\, Victoria\, BC\, Canada and Tim M Conway\, University of South Carolina\, Columbia\, SC\, United States \nOcean Biogeochemistry and Air-Sea InteractionsSession ID#: 29651Thursday\, February 15\, 2018\, 02:00 PM – 04:00 PM and Friday\, February 16\, 2018\, 08:00 AM – 10:00 AMPosters:  Wednesday\, February 14\, 2018\, 04:00 PM – 06:00 PM \nSession Description: \nStudies of ocean biogeochemistry related to air-sea interactions are providing significant new information to help us understand a wide variety of physical\, chemical and biological processes in the oceans. There are many processes that link the surface ocean and the lower atmosphere\, for example\, the release of biogenic compounds as sources of cloud or ice condensation nuclei\, the deposition of natural and anthropogenic aerosols that can affect plankton communities\, the transport of airborne microbes that can alter the dynamics of proximal and distant ecosystems\, the biology\, chemistry and physics of the sea-surface microlayer (SML) as the interface through which all exchanges between the atmosphere and the ocean occur\, the enrichment of surfactants and other biogenic compounds in the SML that can affect gas exchange rates\, etc. Understanding these processes is crucial for improving the reliability of regional and global models and the evaluation of future scenarios. We welcome contributions on all aspects of the physics\, chemistry\, and biology of air-sea interactions\, including observations\, experimentation\, methodological or technical developments\, and theoretical and modeling efforts. \nPrimary Chair:  Francesc Peters\, Institute of Marine Sciences (ICM\, CSIC)\, Barcelona\, Spain \nCo-chairs:  William M Landing\, Florida State University\, Department of Earth\, Ocean\, and Atmospheric Science\, Tallahassee\, FL\, United States\, Oliver Wurl\, Carl von Ossietzky Universität Oldenburg\, Institute for Chemistry and Biology of the Marine Environment\, Wilhelmshaven\, Germany and Brian Ward\, National University of Ireland\, Galway (NUIG)\, School of Physics\, Galway\, Ireland \n  \nBridging Microbial\, Stable Isotope\, and Micronutrient Approaches to Marine Carbon and Nitrogen RecyclingSession ID#: 28316Monday\, February 12\, 2018\, 08:00 AM – 10:00 AMPosters:  Monday\, February 12\, 2018\, 04:00 PM – 06:00 PM \nSession Description: \nThe efficiency of the ocean’s biological carbon pump is determined by the physical transport and cycling of both macro- (N\, P\, Si\, S\, O) and micro-nutrients (e.g. Fe\, Zn\, Co\, Cu\, Cd\, Ni\, Mn\, Mo\, V\, B\, Se). However\, even as our capability to measure nutrient concentrations and their isotopes have expanded to include basin-scale datasets\, we continue to be challenged by new insights with respect to variable plankton and organic matter stoichiometry\, lateral nutrient transport fluxes\, ‘new’ vs. ‘recycled’ nutrients\, metal-organics complexation\, scavenging rates\, variable remineralization rates\, elemental residence times\, and more. Here we welcome submissions that address macro- and micro-nutrient cycling and their effects on sustaining the marine carbon (e.g. export production) and nitrogen (e.g. nitrogen fixation\, denitrification) cycles. A wide breadth of scales (meso\, regional\, basin\, global; paleo\, present\, future) and scientific approaches to these questions are encouraged including observational\, theoretical\, modeling\, and isotopic studies. Finally\, we encourage submissions that work to bridge oceanographic disciplines. \nPrimary Chair:  Patrick A Rafter\, University of California Irvine\, Irvine\, CA\, United States \nCo-Chair:  Robert T Letscher\, University of New Hampshire\, Earth Sciences\, Durham\, NH\, United States and Alexis Pasulka\, California Polytechnic State University \n 
URL:https://www.geotraces.org/event/2018-ocean-sciences-meeting/
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20171023
DTEND;VALUE=DATE:20171027
DTSTAMP:20260503T013513
CREATED:20171017T121400Z
LAST-MODIFIED:20171017T121400Z
UID:2059-1508716800-1509062399@www.geotraces.org
SUMMARY:US GEOTRACES Arctic Data Workshop
DESCRIPTION:US GEOTRACES Arctic Data WorkshopDates: 23-26 October 2017 Location: Miami\, Florida\, USA \nLocal host: David Kadko\, chief scientist for the US GEOTRACES GN01 cruise (HLY 1502). \n  \nSchedule \nThe Schedule of the Workshop of the Workshop is available to download. \n\nList of Participants \n \nThe list of participants is available to download.
URL:https://www.geotraces.org/event/us-geotraces-arctic-data-workshop/
CATEGORIES:GEOTRACES Cruise Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20170918
DTEND;VALUE=DATE:20170921
DTSTAMP:20260503T013513
CREATED:20160930T090000Z
LAST-MODIFIED:20160930T090000Z
UID:2035-1505692800-1505951999@www.geotraces.org
SUMMARY:2017 GEOTRACES Scientific Steering Committee Meeting
DESCRIPTION:2017 GEOTRACES SSC MeetingDates: 18-20 September 2017Location: Salvador da Bahia\, Brazil \n 
URL:https://www.geotraces.org/event/2017-geotraces-scientific-steering-committee-meeting/
CATEGORIES:GEOTRACES Meetings
END:VEVENT
END:VCALENDAR