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2 nd International Ocean Research Conference (BARCELONA)

2 nd International Ocean Research Conference (BARCELONA). Geotraces community Garcia-Orellana J., Mawji E., Schlitzer R., Masferrer E. et al. GEOTRACES Mission.

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2 nd International Ocean Research Conference (BARCELONA)

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  1. 2nd International Ocean Research Conference (BARCELONA) Geotraces community Garcia-Orellana J., Mawji E., Schlitzer R., Masferrer E. et al.

  2. GEOTRACES Mission “To identify processes and quantify fluxes that control the distributions of key trace elements and isotopes (TEIs) in the ocean, and to establish the sensitivity of these distributions to changing environmental conditions”

  3. What are ‘key’ elements They include: • Those acting as micronutrients to control ocean productivity and ecosystems(e.g. Fe, Zn, Cd, Cu, Ni, Co, Mn) • Those tracing modern processes in the ocean (e.g. Al, REEs, Ra and Th isotopes, 3He, 15N) • Contaminants in the present and future ocean (e.g. Pb, Hg) • Chemical species used as proxies to reconstruct past climate (e.g. 231Pa, 230Th, Cd, 15N, 30Si, Ba)

  4. Characterise process Define fluxes at four interfaces and characterize four types of internal cycling

  5. GEOTRACES Sections Completed Sections Planned Sections Sections completed as GEOTRACES contribution to the IPY

  6. What does the programme do? GEOTRACES science is funded and organised by individual nations GEOTRACES as a programme is more than the sum of these national efforts • Intercalibration • Data Management • International Project Office and Steering Committee • Planning, co-ordination and capacity building

  7. What is the IDP - 2014 • Aims: release a data product early in the programme strengthen the collaboration within the project by sharing data attract scientists from other communities (physical and biological oceanography, modelling)

  8. GEOTRACES Intermediate Data Product 2014 • It includes hydrographic and marine geochemical data acquired during the first 3 years of the programme • Two parts: Digital Data Package(available at www.bodc.ac.uk/geotraces/data/idp2014/) eGEOTRACES Electronic Atlas (available at www.egeotraces.org)

  9. Parameters • Includes 237 parameters Classical hydrographic parameters T, S, O2, PO4, NO3, Silicate, CFC, SF6, Tritium, He3, etc. Dissolved and particulate trace elements Ag, Al, Ba, Cd, Cu, Fe, Ga, Hf, I, Mn, Mo, Ni, Pb, Ti, U, REEs Stable isotopes 2H, 13C, 15N, 18O, 30Si, 56Fe, 110Cd, 114Cd, 143Nd, etc. Radioactive isotopes 210Pb, 210Po, 230Th, 231Pa, 232Th, 234Th, etc.

  10. Geographical coverage 15 cruises 796 stations 27,366 samples

  11. Where to find it • Access: http://www.bodc.ac.uk/geotraces/data/idp2014

  12. Digital data – metadata and cruise reports

  13. Digital data – data errors, quality flags andinfos

  14. Data information

  15. Data: Section

  16. Data: 3D (Live demonstration)

  17. Acknowledgements Geotraces community but specially to Mawji E., Schlitzer R., Masferrer E.

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