Earth  ID: 31166

GRACE and GRACE-FO polar ice mass loss

The mass of the Polar ice sheets have changed over the last decades. Research based on observations from the Gravity Recovery and Climate Experiment (GRACE) satellites (2002-2017) and GRACE Follow-On (since 2018 - ) indicates that between 2002 and 2020, Antarctica shed approximately 150 gigatons of ice per year, causing global sea level to rise by 0.4 millimeters per year; and Greenland shed approximately 280 gigatons of ice per year, causing global sea level to rise by 0.03 inches (0.8 millimeters) per year.

These images, created from GRACE and GRACE-FO data, show changes in polar land ice mass since 2002. Orange and red shades indicate areas that lost ice mass, while light blue shades indicate areas that gained ice mass. White indicates areas where there has been very little or no change in ice mass since 2002.

The average flow lines (grey; created from satellite radar interferometry) of the icesheets converge into the locations of prominent outlet glaciers, and coincide with areas of highest mass loss. This supports other observations that warming ocean waters near polar icesheets play a key role in contemporary ice mass loss.
 

Source Material


For More Information

https://grace.jpl.nasa.gov


Credits

Felix W. Landerer (NASA/JPL CalTech): Lead Scientist
Marit Jentoft-Nilsen: Visualizer
Please give credit for this item to:
NASA and JPL/Caltech

Short URL to share this page:
https://svs.gsfc.nasa.gov/31166

Missions:
Gravity Recovery and Climate Experiment (GRACE)
Gravity Recovery and Climate Experiment Follow-on (GRACE-FO)

Keywords:
GCMD >> Earth Science >> Cryosphere >> Glaciers/Ice Sheets >> Glacier Mass Balance/Ice Sheet Mass Balance
GCMD >> Earth Science >> Hydrosphere >> Glaciers/Ice Sheets >> Ice Sheets
GCMD >> Location >> Greenland
GCMD >> Location >> Antarctica
SVS >> Hyperwall
NASA Science >> Earth
GCMD >> Earth Science >> Climate Indicators >> Cryospheric Indicators >> Ice Growth/melt

GCMD keywords can be found on the Internet with the following citation: Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0