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JPL, 23-24 avril 2014

JPL, 23-24 avril 2014. 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”. GEOTRACES Mission.

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JPL, 23-24 avril 2014

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  1. JPL, 23-24 avril 2014

  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. 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”

  4. 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)

  5. Characteriseprocess Define fluxes at four interfaces and characterize four types of internal cycling

  6. Whatdoes 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. International Project Office GEOTRACES International Project Officer: Elena Masferrer Hosted at LEGOS, Toulouse (Catherine Jeandel) International Scientific Steering Committee (chaired by Ed Boyle and Reiner Schlitzer) with representative of 15 nations www.geotraces.org SCOR Sponsored

  8. GEOTRACES Sections

  9. JPL, 23-24 avril 2014

  10. IDP2014 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) LaunchedduringOcean Sciences, Hawaii, 2014

  11. Two Parts Digital datawww.bodc.ac.uk/geotraces/data/idp2014/ eGEOTRACES electronic atlas www.egeotraces.org

  12. Digital data: geographicalcoverage 15 cruises 797 stations 27,387 samples

  13. Digital data: Includes 205 parameters Classicalhydrographicparameters T, S, O2, PO4, NO3, Silicate, CFC, SF6, Tritium, He-3, etc. Dissolvedandparticulatetraceelements Ag, Al, Ba, Cd, Cu, Fe, Ga, Hf, I, Mn, Mo, Ni, Pb, Ti, U, REEs Stableisotopes H-2, C-13, N-15, O-18, Si-30, Fe-56, Cd-110, Cd-114, Nd-143, etc. Radioactive isotopes Pb_210, Po_210, Th_230, Pa_231, Th_232, Th_234, etc.

  14. DEMONSTRATION! JPL, 23-24 avril 2014

  15. Towardsa relationalG-data base Catherine Jeandel (LEGOS, OMP, Toulouse) & the happy IDP team

  16. Our ambitiousproject • To increase the number of data (IDP 2016?) • To build a relational data base…What’s that? Imagine that you want to download all the DFe (or eNd or 230Th..) data of the whole Indian Ocean whatever the cruise…or that you want to correlate Chla and DFe at the level of Chla maximum in the whole Atlantic Ocean… With the interactive, relational data base,we will make it possible! The Work Programme is already defined and a proposal approved at SEDOO (Toulouse)… and then…

  17. The happy team…isstillhere!!! 12 years after…

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