GEOTRACES Science Highlights
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– Are the dissolved iron distributions well represented by the global ocean biogeochemistry models?
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Alessandro Tagliabue and co-workers have conducted the first intercomparison of 13 global ocean iron models against the latest datasets emerging from GEOTRACES…
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– An example of a fruitful international intercomparison
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– All mercury species measured along the GEOTRACES-UK section, South Atlantic Ocean
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Total mercury (THg), methylated mercury (MeHg), and dissolved gaseous mercury (DGM) concentrations were determined along 40°S in the Atlantic Ocean. All Hg species had higher concentrations in western than in eastern basin, although they are at the ultra-low femtomolar level…
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– Amazingly detailed compilation of the silicon cycle, with an emphasis on the oceanic silicon isotope budget
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Although this article is not resulting from GEOTRACES activity, its content is definitely GEOTRACES relevant. The authors constructed an up-to-date compilation of the continental silicon (Si) cycle, including the fate of Si isotopic composition in the different continental but also estuarine and marine solid and solutions…
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GEOTRACES News
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– New GEOTRACES SSC members
The GEOTRACES Scientific Sterering Committee (SSC) welcomes Zanna Chase (University of Tasmania, Australia), Adrian B. Burd (University of Georgia, USA) and Eric Achterberg (GEOMAR, Helmholtz Centre for Ocean Research, Germany) as new members.
Thank you to Andrew Bowie, Olivier Marchal and Angela Wagener who rotated off the GEOTRACES SSC after six years, for their time and effort as members of the SSC.
– New S&I co-chair
Walter Geibert (Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Germany) has been named co-chair of the GEOTRACES Standards and Intercalibration (S&I) Committee.
Thanks to Greg Cutter, former co-chair, for his service over the past years. Greg has played an exceptional role in launching and driving the S&I. An enormous task that greatly served GEOTRACES!
– New report from workshop available
The report from the workshop Biogeochemical studies in the Siberian Shelf Seas (27-28 January 2015, Kiel, Germany) is now available on the GEOTRACES website. Click here to download it.
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News from other programmes
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The Integrated Marine Biogeochemistry and Ecosystem Research (IMBER) project has developed a new Science Plan and Implementation Strategy, to guide the next decade of research into marine biogeochemistry, ecosystem structure and functioning, the human dimensions of global marine change, and interactions between each of these…
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GEOTRACES in Numbers
» Cruises completed: |
84 |
» Section cruises completed:
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31 |
» Stations completed:
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946 |
» Peer-reviewed papers:
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683 |
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GEOTRACES Dates
– Cruises:
27 May 2016 – 15 June 2016, Baltic-Fe, Process Study (GApr05), Baltic Sea.
19 July 2016 – 09 September 2016, German Arctic section cruise (GN05), FRAM Strait, 79°N.
– Forthcoming GEOTRACES Workshops:
26 June 2016, Exploring GEOTRACES data with Ocean Data View, Nippon Maru Memorial Park, Yokohama, Japan (Goldschmidt 2016). Register before 1st of June!
1 – 4 August 2016, Biogeochemical cycling of trace elements within the ocean: A synthesis workshop, Lamont-Doherty Earth Observatory, Palisades, USA. Registration deadline approaching!
– Forthcoming GEOTRACES meetings:
12 – 13 September 2016, GEOTRACES Data Management Committee, Toulouse, France.
14 – 16 September 2016, GEOTRACES Scientific Steering Committee, Toulouse, France.
– Forthcoming GEOTRACES Special Sessions:
26 June – 1 July 2016, Goldschmidt 2016, Yokohama, Japan.
5 – 8 September 2016, Challenger Society 2016 Conference – Oceans and Climate, Liverpool, UK.
– Important Deadline:
1 December 2016, Submit your data for IDP2017!
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Access the GEOTRACES Calendar
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Latest Publications
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– Bratkič, A., Vahčič, M., Kotnik, J., Obu Vazner, K., Begu, E., Woodward, E. M. S., & Horvat, M. (2016). Mercury presence and speciation in the South Atlantic Ocean along the 40°S transect. Global Biogeochemical Cycles, 30(2), 105–119. doi:10.1002/2015GB005275.
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– Grand, M. M., Chocholouš, P., Růžička, J., Solich, P., & Measures, C. I. (2016). Determination of trace zinc in seawater by coupling solid phase extraction and fluorescence detection in the Lab-On-Valve format. Analytica Chimica Acta, 923, 45–54. doi:10.1016/j.aca.2016.03.056.
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– Kipp, L. E., Charette, M. A., Hammond, D. E., & Moore, W. S. (2015). Hydrothermal vents: A previously unrecognized source of actinium-227 to the deep ocean. Marine Chemistry, 177, 583–590. doi:10.1016/j.marchem.2015.09.002.
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– Rogan, N., Achterberg, E. P., Le Moigne, F. A. C., Marsay, C. M., Tagliabue, A., & Williams, R. G. (2016). Volcanic ash as an oceanic iron source and sink. Geophysical Research Letters, 43(6), 2732–2740. doi:10.1002/2016GL067905.
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– Samanta, M., Ellwood, M. J., & Mortimer, G. E. (2016). A method for determining the isotopic composition of dissolved zinc in seawater by MC-ICP-MS with a 67Zn–68Zn double spike. Microchemical Journal, 126, 530–537. doi:10.1016/j.microc.2016.01.014.
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– Tagliabue, A., Aumont, O., DeAth, R., Dunne, J. P., Dutkiewicz, S., Galbraith, E., Misumi, K., Moore, J. K., Ridgwell, A., Sherman, E., Stock, C., Vichi, M., Völker, C., Yool, A. (2016). How well do global ocean biogeochemistry models simulate dissolved iron distributions? Global Biogeochemical Cycles, 30(2), 149–174. doi:10.1002/2015GB005289.
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Acces the GEOTRACES Database |
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Banner 3D scene figure: 3D scene showing the distribution of dissolved iron in the Atlantic Ocean. Source: Schlitzer, R., eGEOTRACES – Electronic Atlas of GEOTRACES Sections and Animated 3D Scenes, http://www.egeotraces.org, 2014.
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