Icebergs; a huge but highly variable source of iron to the ocean

Icebergs have been speculated to constitute one of the largest fluxes of iron (Fe) into the polar oceans since the 1930s and thus recent increases in ice discharge around the world could potentially change Fe availability in the ocean. But how much Fe is in an iceberg? As part of an international collaboration involving several […]

Dec / 16 / 2019

Decreasing of the industrial lead contamination in the Amundsen Sea area

Since the phasing-out of leaded automobile gasoline, the imprint of industrial lead is decreasing everywhere. Antarctica snow and ice are no exception to this general rule, as shown by measurements of lead (Pb) concentration and isotopic composition in these environments as well as in the Amundsen Sea Polynya. Up to 95% of the Pb at the […]

Jul / 07 / 2016

Tracking the sea ice exported from the Siberian Shelf to the Arctic Ocean

An original method based on the use of the couple salinity – δ18O allows determining the fractions of water that had been removed as ice across the shelf and the consequent net export of sea ice from Laptev and East Siberian Sea towards the remaining Arctic Ocean (860 km3/yr). An important point is that this […]

Nov / 26 / 2015