KEOPS 2

En cours

Kerguelen : Comparative study of the ocean and the surface and subsurface area

The KEOPS 2 is the second French initiative assessing the impact of natural iron fertilization on biogeochemical cycles in the Southern Ocean. The first initiative (KEOPS 1) has provided essential information on how the functioning of ecosystems and the biogeochemical cycle of elements are affected by natural iron fertilization. However, intake of iron from the deeper layers proved insufficient to meet the biological demand for iron in surface waters.

The new strategy adopted by KEOPS 2 will determine the depth of the mixed layer in early spring and study the biological response to various physical forces on the inside and outside of mesoscale structures. This re-examination of the "natural laboratory" of the Kerguelen Islands offers an excellent opportunity to significantly advance knowledge of how natural iron fertilization affects biogeochemistry in the Southern Ocean. To address these questions, the KEOPS 2 group will manage a project in the Southern Ocean in the southern hemisphere spring 2011. 90 researchers from 11 French laboratories and 10 foreign laboratories are participating in this project. 4 French laboratories are the ANR KEOPS 2 project partners. They were the main participants in KEOPS 1 and their expertise in the biogeochemistry of iron, geochemistry of tracers and the interaction between biogeochemical cycles and plankton (from bacteria to meso zooplankton) is internationally recognized.

The KEOPS 2 is the second French initiative assessing the impact of natural iron fertilization on biogeochemical cycles in the Southern Ocean. The first initiative (KEOPS 1) has provided essential information on how the functioning of ecosystems and the biogeochemical cycle of elements are affected by natural iron fertilization. However, intake of iron from the deeper layers proved insufficient to meet the biological demand for iron in surface waters.

The new strategy adopted by KEOPS 2 will determine the depth of the mixed layer in early spring and study the biological response to various physical forces on the inside and outside of mesoscale structures. This re-examination of the "natural laboratory" of the Kerguelen Islands offers an excellent opportunity to significantly advance knowledge of how natural iron fertilization affects biogeochemistry in the Southern Ocean. To address these questions, the KEOPS 2 group will manage a project in the Southern Ocean in the southern hemisphere spring 2011. 90 researchers from 11 French laboratories and 10 foreign laboratories are participating in this project. 4 French laboratories are the ANR KEOPS 2 project partners. They were the main participants in KEOPS 1 and their expertise in the biogeochemistry of iron, geochemistry of tracers and the interaction between biogeochemical cycles and plankton (from bacteria to meso zooplankton) is internationally recognized.

Porteur du projet
COM/LOPB
Partenaires industriels
Observatoire Océanologique de Banyuls, CNES/CNRS/IRD/Université Paul Sabatier (LEGOS), CNRS/UBI/IRD (LEMAR)
Partenaires recherche
Budget
3 794 K€
Cofinanceurs publics
ANR
Année de labellisation
2009
Année de cofinancement
2009