Is phytoplankton responsible for pumping CO2 in the Weddell Sea?
Résumé
The Southern Ocean is thought to be a sink of atmospheric CO2 although the uptake magnitude is still a matter of debate. We report the first estimates of ocean-atmosphere CO2 fluxes from the Weddell Sea west of 30°W based on observations collected in the austral summers between 2001 and 2005. . The data consists of high-resolution sea surface temperature, salinity, carbonate system (pCO2, TCO2, Alkalinity), dissolved O2 and nutrients (nitrates, phosphates and silicates), phytoplankton taxonomy and biomass (total Chl-a for three size class, < 0.5μm, >10μm and 5μm< Chl-a