BISICLO

"BIogeochemical cycles, Sea Ice and CLimate in the Polar Oceans"

Coordinatore	CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE    more  Organization address address: Rue Michel -Ange 3 city: PARIS postcode: 75794 contact info Titolo: Mr. Nome: Ludovic Cognome: Hamon Email: send email Telefono: 33142349417
Nazionalità Coordinatore	France [FR]
Totale costo	100˙000 €
EC contributo	100˙000 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2012-CIG
Funding Scheme	MC-CIG
Anno di inizio	2012
Periodo (anno-mese-giorno)	2012-10-01   -   2016-09-30

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE  Organization address address: Rue Michel -Ange 3 city: PARIS postcode: 75794 contact info Titolo: Mr. Nome: Ludovic Cognome: Hamon Email: send email Telefono: 33142349417	FR (PARIS)	coordinator	100˙000.00

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 Obiettivo del progetto (Objective)

'Recent field studies indicate an active biogeochemistry within sea ice. The latter is characterized by significant primary production, large loads of iron, and fluxes of climatically significant biogases, namely carbon dioxide (CO2) and dimethyl-sulfide (DMS). The role of sea ice in the carbon cycle and climate system via a large-scale action on ocean biogeochemistry is relatively poorly studied, potentially important and missing in Earth System Models.

In this project, it is proposed to explore this role, in particular via an impact on carbon and iron cycles. The specific contribution of the relevant processes on carbon production and export at depth – be those processes physical (light, vertical mixing) or biogeochemical (nutrients, release of micro-algae, iron, heterotrophic feeding) – will be studied. In addition, an attempt to quantify the uncertainties associated with under-sampling and poor understanding of the processes involved will be made.

The proposed analysis relies on a synthesis of existing observation data in both Polar Regions, on the development of numerical modeling tools, and on the analysis of numerical simulations both at local and global scales. In particular, the role of the specific processes at work will be studied via sensitivity experiments. The modeling tools include: (i) a one-dimensional sea ice model for the study of local-scale processes and (ii) NEMO, a numerical modeling system of the blue, white and green ocean (ocean, sea ice, and biogeochemistry) at large scales. As this ocean modeling system is part of a state-of-the-art climate model, it will be further possible to evaluate the role of sea ice on carbon cycle and climate.

The project should take part into the reduction of uncertainties on climate and carbon cycle-climate projections in the Polar Regions and orient future observation campaigns. By directly implementing the developments directly in NEMO, this project should benefit to a wide community.'