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Vous êtes ici : Accueil / Actualités / Séminaires / Seminaires Septembre 2018-Aout 2019 / Vendredi 15 Février - GEOVIDE: The French GEOTRACES North Atlantic Transect (GA01). Insights into the main results

Vendredi 15 Février - GEOVIDE: The French GEOTRACES North Atlantic Transect (GA01). Insights into the main results

Par SEMSOU Dernière modification 30/01/2019 12:28
Quand ? Le 15/02/2019,
de 10:00 à 11:00
Où ? Salle Jules Verne
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Géraldine Sarthou

Directrice de Recherche CNRS au LEMAR, France

 

Title: GEOVIDE: The French GEOTRACES North Atlantic Transect (GA01). Insights into the main results.


Abstract: The GEOVIDE cruise, a collaborative project within the framework of the international GEOTRACES programme, was conducted along the French‐led section in the North Atlantic Ocean (Section GA01), between 15 May and 30 June 2014. In this talk, I will present an overview of the main results from GEOVIDE, including physical oceanography and trace element and isotope cyclings. The main GEOVIDE results have helped to improve our understanding of the TEI cycles in the North Atlantic. The strong physical oceanography background of the GEOVIDE project was a strength for interpreting our data. For many TEIs, a strong link was observed between their distributions and water masses. On the other hand, TEIs also helped to constrain oceanic circulation, notably in the subpolar gyre and Labrador Sea. Important sources (sediments, fluvial, and meteoric) and sinks (biological uptake and scavenging) of TEIs were highlighted. The biological carbon pump was studied and showed different efficiencies in the various studied regions.

 

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