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BEGIN:VEVENT
DTSTART;VALUE=DATE:20210622
DTEND;VALUE=DATE:20210628
DTSTAMP:20260503T004729
CREATED:20210216T125758Z
LAST-MODIFIED:20210726T122712Z
UID:11281-1624320000-1624838399@www.geotraces.org
SUMMARY:ASLO 2021\, Aquatic Sciences Meeting
DESCRIPTION:Virtual Meeting\n\n\n\nAquatic Sciences for a Sustainable Future:  Nurturing Cooperation\n\n\n\nInitially this meeting was scheduled to be held in Palma\, but due to COVID-19\, it is necessary to hold the ASLO 2021 Aquatic Sciences Meeting virtually. However\, organisers plan to meet in Palma in 2023. \n\n\n\nEvent website: https://www.aslo.org/2021-virtual-meeting/ \n\n\n\nGEOTRACES and GEOTRACES related sessions:\n\n\n\n*SS63 Towards a mechanistic understanding of metal-microbe interactions in the Oceans\n\n\n\nMartha Gledhill\, GEOMAR Helmholtz Center for Ocean ResearchYeala Shaked\, Interuniversity Institute for Marine Sciences & The Fredy and Nadine Herrmann Institute of Earth Sciences\, Hebrew University of Jerusalem\, JerusalemIngrid Obernosterer\, Microbial Oceanography Laboratory(LOMIC)\, CNRS-Sorbonne University \n\n\n\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. Diverse microbial community members can compete for this scarce resource\, and trace-metal related metabolic functions can also be partitioned among taxa and benefit the whole population. Defining these interactions is critical for understanding the relationship between metabolic rates and elemental cycles in the ocean. 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 within the context of high resolution geochemical such as obtained as part the international GEOTRACES program. In this session we invite contributions that bring together insights from these different disciplines 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 that will result from the impending BioGeoScapes program. We are specifically interested in contributions that address (i) metal uptake and interactions between microbes for metal resources\, (ii) how microbes adapt their physiology to metal scarcity and varied supply\, and (iii) how trace metals shape microbial activity and diversity in the ocean. \n\n\n\n*SS03 Distribution and impacts of ocean nutrient limitation\n\n\n\nThomas Browning\, GEOMAR Helmholtz Centre for Ocean Research KielMark Moore\, University of SouthamptonErin Bertrand\, Dalhousie UniversityAlessandro Tagliabue\, University of Liverpool \n\n\n\nNutrient limitation constrains primary production throughout the global ocean and regulates its responses to climate change. A broadscale picture of nutrient limitation in the current ocean has emerged\, with nitrogen limitation revailing in the stratified subtropical gyres and iron limitation in open ocean and some coastal upwelling regions. However\, new research is rapidly adding important detail to this simple picture. Evidence continues to accumulate for co-limitation between these and other nutrients\, including additional trace elements and vitamins. Such (co-)limitations are likely set by nutrient supply and removal mechanisms to and from the surface ocean\, phytoplankton elemental stoichiometry\, as well as microbial interactions within communities that are simultaneously under the influence of multiple additional abiotic (light\, temperature) and biotic (grazing\, viral lysis) controls. To understand this complexity\, new approaches ranging from advances in ‘-omics’ capabilities\, coordinated cruise programmes and autonomous platform observations\, through to alternative mathematic constructions of nutrient limited growth rates\, are being utilized. Such advances are urgently needed to better understand the drivers and impacts of oceanic nutrient limitation\, as well as meeting the needs of testing and improving Earth System Model simulations projecting the impacts of climate change. This session invites contributions utilizing in situ\, experimental\, and modelling approaches that represent new advances in understanding oceanic nutrient limitation. These could range from those describing the basic distribution and identity of limiting nutrients for diverse microbial groups to understanding the mechanisms\, impacts\, and future development of nutrient limitation in the ocean. \n\n\n\nThe full session list of sessions is available at: https://www.aslo.org/2021-virtual-meeting/session-list/
URL:https://www.geotraces.org/event/aslo-2021-aquatic-sciences-meeting/
LOCATION:Virtual Meeting\, VA
CATEGORIES:GEOTRACES Relevant Special Sessions
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END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20210604
DTEND;VALUE=DATE:20210625
DTSTAMP:20260503T004729
CREATED:20210427T075405Z
LAST-MODIFIED:20220217T151429Z
UID:11905-1622764800-1624579199@www.geotraces.org
SUMMARY:OCB Summer Workshop
DESCRIPTION:Registration is free and open to all. If you are interested in attending part or all of the OCB workshop\, you must register in order to receive connection information for the virtual sessions. Connection information will be sent out a few days before each session. Please register by June 1. \n\n\n\nGEOTRACES will be present at the OCB Networking sessions: \n\n\n\nMonday\, June 7 from 3:30-5:00 pm EDT – Catherine Jeandel and Elena Masferrer (GEOTRACES IPO)Tuesday\, June 15 from 12:30-1:30 pm EDT – Maite Maldonado\, Bob Anderson and Elena MasferrerTuesday\, June 22 from 4:45-5:30 pm EDT – Catherine Jeandel and Bob Anderson.\n\n\n\nOCB2021 plenary topics: \n\n\n\nBridging the divide between ocean biology and geochemistry (Chairs: Dreux Chappell\, Adam Martiny\, Patrick Rafter)Optical biogeochemistry: Above and below the waterline (Chairs: Amy Maas\, Seth Bushinsky\, Maria Tzortziou)Ocean-based negative emissions technologies (Chairs: Lennart Bach\, Jaime Palter\, Clare Reimers\, Patrick Rafter)Ocean Worlds (Chairs: Laura Lorenzoni\, Chris German\, Alison Murray\, Ashley Kleinman\, Paula Bontempi\, Adam Martiny)Opportunities and Challenges in Ecological Forecasting (Chairs: Victoria Coles\, Marjorie Friedrichs\, Charlie Stock\, Susanne Menden-Deuer\, Raleigh Hood)\n\n\n\nOCB will kick off with a virtual early career mixer on June 4. Virtual partial day OCB sessions are tentatively planned for June 7\, 11\, 15\, 18\, 22\, and 24. In addition to plenary sessions\, OCB 2021 will include targeted community discussions on OCB-relevant topics\, OCB activity updates\, early career and agency program manager networking events\, virtual poster sessions\, and more!
URL:https://www.geotraces.org/event/ocb-summer-workshop/
LOCATION:Virtual Meeting\, VA
CATEGORIES:GEOTRACES Relevant Special Sessions
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END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20210304
DTEND;VALUE=DATE:20210312
DTSTAMP:20260503T004729
CREATED:20210218T080759Z
LAST-MODIFIED:20210726T122432Z
UID:11310-1614816000-1615507199@www.geotraces.org
SUMMARY:Fukushima Dai-ichi and the Ocean: 10 years of study and insight
DESCRIPTION:The events in Japan that began on March 11\, 2011\, with the country’s largest recorded earthquake and a tsunami of remarkable power\, leading to the initial and ongoing releases of radioactive materials from the Fukushima Dai-ichi Nuclear Power Plant. \n\n\n\nJoin us on March 4th as we look back at what we’ve learned over the past 10 years during two virtual panels\, both at 7:30 pm\, one timed for Tokyo with the second for the U.S. East Coast\, using simultaneous translation at the Tokyo event for Japanese and English speakers. \n\n\n\nYou will need to register for these free panel events: https://cmer.whoi.edu/10-years-of-study-and-insight/ \n\n\n\nWe are pleased to announce that the panels will be moderated by Miles O’Brian\, with keynote introductions by Atsuko Yoko Fish (Tokyo event) and Caroline Kennedy (US event). The panel of four experts- J. Kanda (Tokyo U. Marine Sci & Tech)\, K. Buesseler (WHOI\, USA)\, S. Charmasson (IRSN\, France)\, A. Brown (Safecast\, Japan)- will review events that occurred\, explore the fate of the radioactive contaminants in the ocean\, the consequences for marine life and human consumers of seafood\, and finally explore communication of these events to the public. The presentations and panel discussion will be moderated with the general public in mind and will be of interest to policy-makers\, industry leaders\, and the research community. It will also include time for questions from the audience. \n\n\n\nFinally\, during the week of March 4-11\, we will host a virtual poster session accompanied by short audio presentations in English and Japanese with the option to leave your questions for the poster authors. \n\n\n\nTogether\, the keynotes\, panels\, and poster session will offer a fitting memorial of events in 2011 and will also provide an informative and accessible summation of work that occurred over the past decade as a result.
URL:https://www.geotraces.org/event/fukushima-dai-ichi-and-the-ocean-10-years-of-study-and-insight/
LOCATION:Virtual Meeting\, VA
CATEGORIES:GEOTRACES Relevant Workshop
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END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20201201
DTEND;VALUE=DATE:20201218
DTSTAMP:20260503T004729
CREATED:20200824T092824Z
LAST-MODIFIED:20210726T122336Z
UID:8867-1606780800-1608249599@www.geotraces.org
SUMMARY:AGU Fall Meeting
DESCRIPTION:GEOTRACES-related session: \n\n\n\nTitle: Advances in Understanding Meridional Overturning Circulation from Past to Future: Insights from Multiple Approacheshttps://agu.confex.com/agu/fm20/meetingapp.cgi/Session/110375 \n\n\n\nAbstract:The Meridional Overturning Circulation (MOC) is a major driver of Earth’s climate and biogeochemical cycling on many timescales. Modern oceanographic observations and modeling studies are making great advances in understanding MOC dynamics\, predictability\, and connections to Earth’s systems over seasonal to decadal periods. Meanwhile\, paleoclimate observations and modeling studies have highlighted the close link between changes in the climate system and variations in the structure and/or magnitude of MOC over multi-decadal to tectonic timescales. Much remains to be understood about the interplay between MOC changes and the cryosphere\, atmosphere\, and ocean biogeochemistry\, as well as mechanisms driving past\, present and future MOC variations. Modern and Paleo approaches are complementary and together bring new insights into MOC dynamics and predictability under future climate conditions. This session welcomes theoretical\, modeling\, and observation-based studies that investigate the nature\, stability and sensitivity of the MOC to external forcing and internal feedbacks across seasonal-to-tectonic timescales. \n\n\n\nPrimary ConvenersKelly H KilbourneUniversity of Maryland Center for Environmental Science Chesapeake Biological Lab \n\n\n\nConvenersFeng HeUniversity of Wisconsin-MadisonXu ZhangLanzhou UniversityJulia GottschalkLamont-Doherty Earth Observatory\, Columbia University of the City of New York
URL:https://www.geotraces.org/event/agu-fall-meeting/
LOCATION:Virtual Meeting\, VA
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20200915
DTEND;VALUE=DATE:20200918
DTSTAMP:20260503T004729
CREATED:20200707T073755Z
LAST-MODIFIED:20210726T122246Z
UID:7182-1600128000-1600387199@www.geotraces.org
SUMMARY:2020 GEOTRACES SSC Meeting
DESCRIPTION:2020 GEOTRACES SSC MeetingDates: 15-17 September 2020Location: Virtual
URL:https://www.geotraces.org/event/2020-geotraces-ssc-meeting/
CATEGORIES:GEOTRACES Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20200913
DTEND;VALUE=DATE:20200915
DTSTAMP:20260503T004729
CREATED:20200707T073849Z
LAST-MODIFIED:20210726T122233Z
UID:7184-1599955200-1600127999@www.geotraces.org
SUMMARY:2020 GEOTRACES DMC Meeting
DESCRIPTION:2020 GEOTRACES DMC MeetingDates: 13-14 September 2020Location: Virtual
URL:https://www.geotraces.org/event/7184/
CATEGORIES:GEOTRACES Meetings
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20200621
DTEND;VALUE=DATE:20200627
DTSTAMP:20260503T004729
CREATED:20200304T100108Z
LAST-MODIFIED:20210726T122204Z
UID:5728-1592697600-1593215999@www.geotraces.org
SUMMARY:Virtual Goldschmidt 2020
DESCRIPTION:Goldschmidt is the foremost annual\, international conference on geochemistry and related subjects\, organized by the Geochemical Society and the European Association of Geochemistry. \n\n\n\nGEOTRACES session: \n\n\n\n14m: Biogeochemical Cycling of Trace Elements and their Isotopes in the Oceans (GEOTRACES) \n\n\n\nConveners: Tim Conway\, Mariko Hatta\, Nick Hawco \n\n\n\nKeynote: Brandy TonerInvited Speakers: Jun Nishioka\, Sam Wilson \n\n\n\nTrace elements and their isotopes (TEIs) play critical roles in ocean biogeochemistry and carbon cycling\, as well as providing new insights into oceanic processes such as circulation\, ventilation\, particle scavenging\, primary productivity\, redox state and source/sink processes. In the last decade\, the International GEOTRACES Program has facilitated rapid progress in this area\, providing a wealth of data\, answers and new questions for our understanding of past and present ocean TEI cycling. In this session\, we aim to bring together studies from a range of disciplines\, over a range of scales\, that aim to address current questions in marine biogeochemical cycling. We invite submissions concerning any aspects of trace element chemistry and biogeochemistry in the oceans\, and encourage submissions presenting process studies or making use of large-scale concentration distributions or modeling of TEIs or their isotopes to provide new insights. Given the Hawaiian location of Goldschmidt in 2020\, and the recent sharp focus on the importance of East Pacific Rise and Loihi as TEI sources\, we especially encourage submissions dealing with the biogeochemistry of both near and far-field hydrothermal activity. We also encourage studies which focus on rates\, abiotic/biotic particle scavenging\, trace-metal speciation\, redox and isotope cycling\, organic ligand metal interactions\, and boundary exchange (redox\, atmosphere\, sediments\, hydrothermal\, rivers)\, or those that aim to use trace element isotope systems (e.g. Ba\, Si\, Zn\, Cd\, Cr\, Ni) as redox or productivity paleoproxies.
URL:https://www.geotraces.org/event/goldschmidt-2020/
LOCATION:Virtual Meeting\, VA
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20200506
DTEND;VALUE=DATE:20200509
DTSTAMP:20260503T004729
CREATED:20200203T095807Z
LAST-MODIFIED:20210726T122141Z
UID:5169-1588723200-1588982399@www.geotraces.org
SUMMARY:US GEOTRACES GP17 cruise planning workshop
DESCRIPTION:Note: To to the COVID-19 situation\, this meeting will be held online via Zoom 6-8 May 2020. It is an invitation-only meeting with a maximum attendance of 70. \n\n\n\nBackground\n\n\n\nUS GEOTRACES will hold a workshop 6 – 8 May 2020 at Old Dominion University to coordinate the scientific objectives and supporting logistics for a section to run from Tahiti to Amundsen Sea to the Chilean shelf (GEOTRACES Section GP17). Because of logistics issues this section would involve two separate research cruises\, tentatively planned for late 2021 and early 2022. Principal investigators interested in conducting research as part of one or both of these cruises are invited to attend a project planning workshop in Norfolk\, VA (details to follow). No prior involvement in GEOTRACES is necessary to participate. \n\n\n\nAn essential goal of this workshop is to supply potential participants and collaborators with all the pertinent details on\, and science behind\, the proposed cruises so that they can write successful proposals and therefore make the collaborative GP17 cruises a success. Workshop participants will have an opportunity to present their anticipated research contributions for the section in very brief advocacy talks. \n\n\n\nAnnouncement\n\n\n\nPlease click here to download the announcement.
URL:https://www.geotraces.org/event/us-geotraces-gp17-cruise-planning-workshop/
LOCATION:Virtual Meeting\, VA
CATEGORIES:GEOTRACES Cruise Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20200312
DTEND;VALUE=DATE:20200314
DTSTAMP:20260503T004729
CREATED:20200306T135241Z
LAST-MODIFIED:20210726T121645Z
UID:5841-1583971200-1584143999@www.geotraces.org
SUMMARY:French GEOTRACES SWINGS (GS02) pre-cruise meeting
DESCRIPTION:SWINGS is a multidisciplinary 4-year project fully dedicated to elucidate trace element sources\, transformations and sinks along a section crossing key areas of the Southern Ocean (SO). SWINGS aims at 1) establishing the relative importance of sedimentary\, atmospheric and hydrothermal sources of trace elements and isotopes (TEIs) in the Indian sector of the SO\, 2) investigating the drivers of the internal trace element cycles: biogenic uptake\, remineralization\, particle fate\, and export\, and 3) quantifying TEI transport by the Antarctic Circumpolar Current and the complex frontal areas at the confluence between Indian and Atlantic Oceans. Learn more about the project here. \n\n\n\nAgenda \n\n\n\nThe agenda of the pre-cruise meeting is available to download here.
URL:https://www.geotraces.org/event/french-geotraces-swings-gs02-pre-cruise-meeting/
LOCATION:Pôle Numérique Brest Iroise (PNBI)\, 305 Avenue Alexis de Rochon\, Plouzané\, France
CATEGORIES:GEOTRACES Cruise Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20200216
DTEND;VALUE=DATE:20200222
DTSTAMP:20260503T004729
CREATED:20191010T081347Z
LAST-MODIFIED:20210726T112538Z
UID:3277-1581811200-1582329599@www.geotraces.org
SUMMARY:2020 Ocean Sciences Meeting 
DESCRIPTION:2020 Ocean Sciences Meeting Dates: 16-21 February 2020Location: San Diego\, California\, USA. \n\n\n\nFor more information: https://www2.agu.org/ocean-sciences-meeting \n\n\n\nGEOTRACES and GEOTRACES related sessions: \n\n\n\nRevealing Biogeochemical Processes on Basin Scales through Ocean TransectsSession ID#: CT008https://agu.confex.com/agu/osm20/prelim.cgi/Session/84582 \n\n\n\nBiogeochemical processes that affect the cycling of trace elements and their isotopes\, as well as carbon\, macronutrients and other constituents\, are studied using two basic field strategies: sampling at a fixed station or regime to measure rates and examine specific processes\, or transects on up to basin scales. Each has its strengths and weaknesses\, but transects can gather a broad sweep of information on a relatively short time scale that can then be used to develop a more specific process-oriented approach. Indeed\, the GEOSECS program of the 1970’s used the transect approach\, and currently the GO-SHIP/Repeat Hydrography and international GEOTRACES programs feature long ocean transects. This session will highlight biogeochemical processes revealed on basin transects that affect trace constituents such as trace elements and isotopes\, as well as organic constituents\, including carbon and macronutrients. It will also focus on sampling and data analysis methods applied to sampling across basins\, and biogeochemical modeling studies that integrate data from long transects into their analyses. \n\n\n\nPrimary Chair: Gregory A Cutter\, Old Dominion University. \n\n\n\nCo-chairs: Phoebe J Lam\, University of California Santa Cruz;  Karen L Casciotti\, Stanford University; Rob Middag\, Royal Netherlands Institute for Sea Research. \n\n\n\nLinking the biology\, geochemistry\, and circulation of the Gulf of MexicoSession ID#: OB015https://agu.confex.com/agu/osm20/prelim.cgi/Session/84432 \n\n\n\nSession Description: \n\n\n\nThe Gulf of Mexico is a small\, dynamic marginal sea that supports a broad range of oceanographic environments\, including eutrophic coastal systems\, oligotrophic open ocean waters\, hydrocarbon-impacted waters and sediments\, and shelf waters that are susceptible to frequent harmful algal blooms. Large atmospheric\, riverine\, and submarine groundwater fluxes strongly influence the biogeochemistry of near-shore and open ocean waters\, yielding a high degree of spatial and temporal variability. Several recent studies have focused on characterizing the biogeochemistry of the Gulf of Mexico using a range of interdisciplinary approaches. Following on a successful 2018 OSM Town Hall led by GEOTRACES and OCB\, this session will bring together interested investigators to highlight new results from the Gulf and identify potential areas of common interest and collaborative opportunities to help inform future planning in GEOTRACES\, OCB\, and other relevant programs. We invite contributions that characterize the variability in the biology\, geochemistry\, and/or physical oceanography of the Gulf of Mexico\, and especially the linkages between them. Suggested contributions may include\, but are not limited to descriptions of water column and benthic geochemical distributions\, biogeochemical rate measurements\, characterizations of molecular ecology\, geochemical fluxes\, and descriptions of circulation that impact Gulf biogeochemical dynamics. \n\n\n\nPrimary Chair: Angela N Knapp\, Florida State University. \n\n\n\nCo-chairs: Alan M Shiller\, University of Southern Mississippi; Heather M Benway\, Woods Hole Oceanographic Inst.; Juan Carlos Herguera\, Center for Scientific Research and Higher Education at Ensenada. \n\n\n\nControls on trace metal biogeochemistry and physicochemical speciation in seawaterSession ID#: CT004https://agu.confex.com/agu/osm20/prelim.cgi/Session/85790 \n\n\n\nSession Description: \n\n\n\nTrace metals function as essential micronutrients and pollutants in the ocean. Organic complexation\, size partitioning\, and redox changes of trace elements can be mediated by biological processes including uptake\, regeneration\, cell lysis\, and organic ligand production. Additional processes influencing the production\, degradation\, and composition of organic matter also play an important role in controlling trace metal distributions\, and both vary across environments (e.g. estuaries\, open ocean\, air-sea-sediment interfaces\, hydrothermal systems). In turn\, resulting changes in bioavailability and cycling of trace elements governs the function and composition of marine phytoplankton communities. Recent efforts\, particularly within GEOTRACES\, have expanded the database of trace metal concentrations and physicochemical speciation. This session seeks to link our understanding of biology\, organic matter\, and trace metal chemistry from molecular to basin-wide scales\, from studies related to biologically-mediated transformations of trace elements to the wider processes controlling metal distributions\, size partitioning\, and fluxes. We welcome submissions highlighting how marine organisms influence the physicochemical speciation of trace elements in seawater\, and how changes in trace element chemistry impact the structure and function of marine ecosystems. In addition to observational\, experimental and modelling studies\, we also invite contributions on the production\, degradation\, and characterization of metal-binding compounds and colloids. \n\n\n\nPrimary Chair: Hannah Whitby\, IUEM Institut Universitaire Européen de la Mer. \n\n\n\nCo-chairs: Randelle M Bundy\, University of Washington; Jessica N Fitzsimmons\, Texas A & M University College Station; Andrea Koschinsky\, Jacobs University Bremen. \n\n\n\nBiogeochemical cycles in oxygen minimum zones: mechanisms\, drivers\, and changeSession ID#: CT001https://agu.confex.com/agu/osm20/prelim.cgi/Session/85226 \n\n\n\nSession Description: \n\n\n\nOxygen minimum zones in the coastal and open ocean are spatially expanding and intensifying\, with model projections showing continued O2 loss in the future. These regions play a fundamental role in the biogeochemical cycles of elements such as carbon\, nitrogen and sulfur as well as trace elements\, host microbial communities with diverse metabolic pathways\, and act as significant sources and sinks of nutrients and climatically relevant (greenhouse) gases. Yet\, significant questions on the nature\, drivers and variability of these processes remain. This session aims to build a comprehensive view of oxygen minimum zone biogeochemistry\, by inviting researchers who apply a variety of approaches to these problems\, from field and laboratory measurements\, to -omics based studies\, to observational synthesis and numerical models. Specifically\, we invite submissions investigating: (1) the distribution\, speciation and transformation of macronutrients (N\, P\, Si)\, trace metals (e.g. Mn\, Fe\, Co\, Ni\, Cu\, Zn\, Cd)\, redox-active elements (e.g. S\, Cr\, Mo\, I) and their isotopes; (2) microbial interactions and their impacts on biogeochemical cycles; (3) processes occurring in and around particle-associated microenvironments\, and (4) the physical drivers and variability of these processes. Studies assessing regional or global impacts with large/new datasets\, e.g. from international programs such as GEOTRACES\, and integrative approaches combining modeling\, field/laboratory measurements\, and/or microbial and molecular approaches are especially encouraged. \n\n\n\nPrimary Chair: David Janssen\, University of Bern. \n\n\n\nCo-chairs: Daniele Bianchi\, University of California Los Angeles; Thomas S Weber\, University of Rochester. \n\n\n\nCT003 – Chemical Speciation and Biogeochemistry in a Changing OceanSession ID#: CT003https://agu.confex.com/agu/osm20/prelim.cgi/Session/85778 \n\n\n\nSession Description: \n\n\n\nHow is seawater chemistry responding to global change processes\, and what are the consequences for marine ecosystems? How do advances in our understanding of chemical speciation give new mechanistic insight into biogeochemical processes? The thermodynamics of solution chemistry in addition to the distribution of trace metals and organic complexes along a gradient of particle sizes and ephemeral clusters are the focus of our session. Although solution thermodynamics is a relatively mature field\, there is an upsurge of research on both measurement and modelling of chemical speciation and an increasing focus on the assessment of uncertainties. This session will also explore interactions between solid and soluble species\, focusing on how recent developments examining the continuum between solid and dissolved (colloids\, nanoparticles\, etc.) alter our paradigm view of element cycling. The transport and reactivity of these ‘in-between’ species may differ from their fully dissolved or solid counterparts\, yet they are the most difficult to sample and observe. We invite submissions pertaining to the measurement and modelling of chemical speciation; assessment of modelling uncertainties; abiotic and biotic transformations from the solid to soluble phase and back again; reactions at the solid-solution interface; trace metal binding environments; sediment-seawater relationships; and interpretation of paleo records. \n\n\n\nPrimary Chair: David R Turner\, University of Gothenburg. \n\n\n\nCo-chairs: Veronique Oldham\, University of Delaware; Sylvia Sander\, IAEA; Emily R Estes\, WHOI. \n\n\n\nAutonomous observing systems for macronutrients and bioactive trace metals in coastal and open ocean settings: present status\, challenges and emerging technologiesSession ID#: IS003https://agu.confex.com/agu/osm20/prelim.cgi/Session/84800 \n\n\n\nSession Description: \n\n\n\nProgress and discovery in the understanding and modeling of biological productivity and species composition in the marine environment is limited by our ability to make macronutrient and bioactive trace metal measurements at relevant spatial and temporal scales. While significant progress has been made with the advent of UV and microfluidic nitrate sensors\, there are still few analytical systems for other important macronutrient species (P\, Si\, NH3) and virtually none for bioactive trace metals that can be deployed on the expanding array of platforms dedicated to long term unattended data gathering (i.e.\, moorings\, gliders\, profilers)\, particularly in oligotrophic surface ocean settings. \n\n\n\nThis session aims to: (1) highlight the latest developments in macronutrient and bioactive trace metal analytical methodologies with strong potential or demonstrated capabilities for unattended operation in coastal and open ocean settings and\, (2) serve as a forum to nurture collaborations among sensor developers and oceanographers with an engineering and analytical chemistry inclination. Contributions from all stages of development are encouraged including: remote samplers\, passive samplers\, reagent-based microfluidic analyzers including the use of novel chemical probes\, electrochemical methods\, optical sensors\, as well as the optimization\, calibration\, and field validation of emerging in situ technologies. \n\n\n\nPrimary Chair: Maxime Grand\, Moss Landing Marine Laboratories. \n\n\n\nCo-chairs: Andrew R Bowie\, University of Tasmania; Agathe Laes-Huon\, IFREMER; Alexander Beaton\, National Oceanography Center\, Soton. \n\n\n\nTowards BioGeoSCAPES: Exploring molecular drivers of ocean metabolism and biogeochemistrySession ID#: OB030https://agu.confex.com/agu/osm20/prelim.cgi/Session/84717 \n\n\n\nBioGeoSCAPES has been proposed as an idea for a new international coordinated research program to integrate knowledge on organism identity and physiology within frameworks of community ecology and global ocean biogeochemistry. It is envisioned that an improved\, predictive\, and quantitative understanding of ocean metabolism can be developed by combining detailed information on cell status\, biochemical processes\, and species interactions with intercalibrated measurements of nutrient fluxes and concentrations. We invite contributions describing research that can serve as inspiration for this nascent program. Appropriate abstracts could include: studies that integrate molecular and biogeochemical measurements\, including fluxes; research that places ‘omics observations (e.g.\, genomic\, transcriptomic\, proteomic\, metabolomic\, metallomic\, lipidomic\, etc.) within quantitative numerical modeling frameworks; or studies that scale from the cellular to the ecosystem level through integrated field measurements or mechanistic models of interactions. The aim of this session is to highlight research that combines informatics\, modeling\, and biogeochemical measurements across scales of time and space\, to test\, integrate\, connect\, and expand upon studies of ocean ecology and metabolism. \n\n\n\nPrimary Chair: Benjamin S Twining\, Bigelow Lab for Ocean Sciences. \n\n\n\nCo-chairs: Erin Marie Bertrand\, Dalhousie University; Martha Gledhill\, GEOMAR Helmholtz Centre for Ocean Research; Naomi Marcil Levine\, University of Southern California. \n\n\n\nThe role of micronutrient cycles in global-scale dynamicsSession ID#: CT010https://agu.confex.com/agu/osm20/prelim.cgi/Session/85400 \n\n\n\nSession Description: \n\n\n\nVia their fundamental control on ocean productivity and the biological carbon pump\, the cycling of nutrients plays an integral role in the dynamics of atmospheric CO2 and climate. In contrast to the ‘big three’- nitrogen\, phosphorus and silicon\, with their well characterised modern distributions and relatively stable inventories\, micronutrients\, such as iron\, remain relatively poorly observed and have the potential for rapid and profound changes in their inventories and biological availability in response to a host of poorly constrained processes. Micronutrients are currently the ‘wild card’ in both past and future carbon cycle and climate change\, prompting the need for improved understanding of their role in Earth system dynamics. We invite a broad range of submissions to provide insights into the pieces of the puzzle\, addressing boundary inputs and sinks\, exchanges between dissolved and solid phases\, interactions with organic compounds\, and their reciprocal interactions with microbial ecosystems. Submissions may include observations\, data synthesis or models\, and may address ocean nutrient cycling over a range of time-scales\, from past (paleo) through contemporary\, and/or in response to future global change. We particularly encourage new insights into the role of feedbacks and the role micronutrient cycles play in shaping global-scale dynamics. \n\n\n\nPrimary Chair: Andy Ridgwell\, University of California Riverside. \n\n\n\nCo-Chair: Alessandro Tagliabue\, University of Liverpool \n\n\n\nUnderstanding Rare Earth Element (REE) distributions and isotopic ratios and the mechanisms behind their use as tracers of (paleo)oceanic processesSession ID#: CT011https://agu.confex.com/agu/osm20/prelim.cgi/Session/84457 \n\n\n\nAnalytical advances have enabled a significant increase of environmental REE abundance and isotopic (e.g. Nd\, Ce) data. These elements are increasingly recognized as promising tracers for elucidating past and present natural and man-made processes in a variety of aquatic environments. However\, in spite of this growth in observations\, our understanding of the mechanisms\, capabilities and limitations of geochemical proxies based on REE abundances and isotopic ratios remains incomplete. We therefore invite presentations of field\, laboratory\, or modeling studies of REEs and related isotope systems aimed specifically at exploring mechanistic connections between their geochemical behavior and observed distributions in marine and terrestrial waters and sediments. Of particular interest are investigations linking REE abundance distributions to Nd or Ce isotopic ratios; validating the use of REEs as proxies of paleoceanographic processes; and addressing REE fractionation and source-to-sink transport on a global scale and at “geochemical hotspots” like estuaries\, hydrothermal vents\, nepheloid layers etc. Presentations that merely contribute TEI distribution data will be given lower priority. We especially encourage submissions from students and early-career scientists. \n\n\n\nPrimary Chair: Brian A Haley\, Oregon State University \n\n\n\nCo-chairs: Torben Stichel\, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven; Johan Schijf\, University of Maryland Center for Environmental Science; Vanessa Hatje\, Universidade Federal da Bahia.
URL:https://www.geotraces.org/event/2020-ocean-sciences-meeting/
LOCATION:San Diego Convention Center\, San Diego\, CA\, United States
CATEGORIES:GEOTRACES Relevant Special Sessions
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20200207
DTEND;VALUE=DATE:20200208
DTSTAMP:20260503T004729
CREATED:20200310T101402Z
LAST-MODIFIED:20210726T120639Z
UID:5983-1581033600-1581119999@www.geotraces.org
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:20260503T004729
CREATED:20191016T090044Z
LAST-MODIFIED:20210726T123244Z
UID:3419-1575763200-1576022399@www.geotraces.org
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:20260503T004729
CREATED:20190402T132216Z
LAST-MODIFIED:20210726T123303Z
UID:2110-1569196800-1569715199@www.geotraces.org
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:20260503T004729
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:20260503T004729
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:20260503T004729
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:20260503T004729
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:20260503T004729
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:20260503T004729
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:20260503T004729
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:20260503T004729
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:20260503T004729
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:20260503T004729
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:20260503T004729
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:20260503T004729
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:20260503T004729
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:20260503T004729
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:20260503T004729
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
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20180812
DTEND;VALUE=DATE:20180813
DTSTAMP:20260503T004729
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
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20180726
DTEND;VALUE=DATE:20180727
DTSTAMP:20260503T004729
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
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END:VCALENDAR