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


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

MOTES: a new facility designed for trace element sampling in seawater

Zhang and a group of engineers and researchers from Shanghai and Qingdao are presenting a modular trace element sampling facility.

A thorough estimate of the hydrothermal plumes on neodymium concentration and isotope oceanic cycles

Basak and co-workers investigated the influence of particulate matter on neodymium distributions in the Southern East Pacific Rise Hydrothermal Plume.

What are the drivers of the distributions of cadmium, nickel, zinc, copper and cobalt, manganese and aluminium in the Atlantic Ocean? Two papers are tackling this issue

Chen and co-authors reveal that the distributions of dissolved tracers at depth in the South Atlantic are predominantly controlled by the mixing of North Atlantic Deep Water and waters of Antarctic origin…

Disentangling the sources and transport of iron in the Southern Ocean using a water mass mixing model analysis

Traill and co-workers used an extended optimum multiparameter analysis water‐mass mixing model to determine the interplay between physical and biological processes, and sources/sinks driving dissolved iron distributions…