Thanks to GEOTRACES-IPY, more and more iron data in the Arctic

fred_MG_0762_gel2

Klunder, M. B., Bauch D., Laan P., de Baar H.J.W., van Heuven S., and Ober S. (2012), Dissolved iron in the Arctic shelf seas and surface waters of the central Arctic Ocean: Impact of Arctic river water and ice-melt, J. Geophys. Res., 117, C01027, doi:10.1029/2011JC007133.


Dissolved and Total Dissolvable iron (Fe), together with aluminium (Al), seawater δ18O and other ancillary parameters were acquired in the framework of the GEOTRACES-IPY (GPY11) ARK XXII/2 cruise onboard R/V Polarstern in 2007. The roles of fresh water sources (Eurasian river discharges), sea ice, biological uptake/remineralisation and potential release of iron from the shelf sediments on the distribution of iron in the Arctic waters are discussed. This work also advances some hypotheses perspectives concerning biogeochemical cycles in the ocean under the pressure of global change.

Latest highlights

Do not mourn Nobias any longer: InertSep ME-2 is coming!

Thanks to the thorough development proposed by Alifia and co-workers, the community may have a solution to the shortage of Nobias Chelate PA-1…

Long-range transport of iron off the Antarctic Peninsula

Tian and co-authors investigate dissolved iron concentrations and isotope compositions in the western Weddell Sea…

Seasonal variation of the dissolved iron ligands in the South Atlantic sector of the Southern Ocean

In the ocean, up to 99% of the dissolved iron is strongly complexed with organic compounds known as iron-binding ligands…

Tracing the origin of iron in the equatorial Pacific: an isotopic study

The equatorial Pacific Ocean is a region of contrasts: in the west, rivers and sediments supply large amounts of iron, while in the east, iron deficiency limits the growth of phytoplankton…

Rechercher