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Jan 10, 2016

2 new postdocs in our group

Alex Haumann and Simon Yang successfully defended their theses in December 2016 / January 2017.




Nov 10, 2016

UP on Cover Page

The new article of Peter Landschützer et al. made it to the front cover of the October issue of the AGU journal Global Biogeochemical Cycles:

Peter Landschützer, Nicolas Gruber, and Dorothee C.E. Bakker (2016): Decadal variations and trand of the global ocean carbon sink. Global Biogeochemical Cycles. full article.    


figure 4;

credit: Landschützer et al. (2016), Global Biogeochemical Cycles (doi 10.1002/2015GB005359)

Sept 1, 2016

Why is the Southern Ocean freshening?

Our new study that was just published in Nature suggests that northward transport of freshwater by sea ice from Antarctica can explain most of the observed freshening in to open ocean surface and intermediate waters of the Southern Ocean over the past few decades. These results have important consequences for global climate by affecting the deep-to-surface ocean exchange of heat, carbon and nutrients.

Haumann, F. A., Gruber, N., Münnich, M., Frenger, I., Kern S. (2016): Sea-ice transport driving Southern Ocean salinity and its recent trends. Nature. full article.


ETH news article


Effect of freshwater transport by sea ice on Southern Ocean salinity over the period 1982 through 2008. Upper panel: Sea-ice conveyor belt transports freshwater from the coastal to the open ocean, changing the ocean's salinity. Lower panel: Increasing sea-ice transport freshened the open ocean and, by leaving the salt behind in the coastal region, compensated for part of the freshening by enhanced glacial meltwater input. Credit: Haumann et al. (2016), Nature (

May 4, 2016

UP in the news!

Interview with Thomas Frölicher in Die Zeit.

See full article (german): online or download (PDF, 440 KB)

Sept 11, 2015

New paper published!

Landschützer et al. on "The reinvigoration of the Southern Ocean carbon sink", Science

link to Science and ETH news

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