ALONG: Atlantic overturning circulation from GRACE/GRACE-FO

The Atlantic Meridional Overturning Circulation (AMOC) is a key element of heat transport in the Earth’s climate system. A slow-down would have significant impact, especially on our climate in Europe. Observations of AMOC changes, covering all of the Atlantic Ocean basin and for a substantially long time series, are so far not available. In this project, we propose to enhance the methodology to derive AMOC changes from satellite gravimetry and provide a time series of mass transport in the Atlantic Ocean, based on the full data record of the satellite missions GRACE and GRACE-FO. These novel observations will allow new insights into the AMOC through improved temporal and spatial coverage. Thus, we will make a substantial contribution to understanding and observing our changing climate, a topic which is of highest concern, both for science and society.


This project is funded within the Austrian Space Applications Program (ASAP) Phase XV by the Austrian Research Promotion Agency (FFG).


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Andreas Kvas
Steyrergasse 30/III
8010 Graz
Tel: +43/316/873-6347
Fax: +43/316/873-6845

Torsten Mayer-Gürr
Steyrergasse 30/III
8010 Graz
Tel: +43 316 873-6359
Fax: +43 316 873-6845