Welcome
Welcome to the Princeton Polar Ice website! Here we present our latest research results on the mass change of Earth's ice sheets by using gravity measured by the GRACE satellites. Most recently have published our work on the Antarctica ice sheet, measuring its ice changes since 2003.
More information on Antarctica and our previous work on Greenland, including published figures, updated figures, and additional discussion can be found on the Antarctica page and Greenland page. We are also developing and maintaining a collection of open-source software for geodetic localization of GRACE data products. Details about this code can be found on the Methods/Code page.

News
3/16/2015     Two articles came out recently! Read/download them from the About/Pubs page.
The first is our recent results detailing the mass loss from Antarctica:
Harig, Christopher and Frederik J. Simons. Accelerated West Antarctic ice mass loss continues to outpace East Antarctica gains. Earth Planet. Sci. Let., 415, 134-141, 2015. http://dx.doi.org/10.1016/j.epsl.2015.01.029

The second is an article in Eos describing the release of the SLEPIAN software package: Harig, Christopher, Kevin W. Lewis, Alain Plattner, and Frederik J. Simons. A suite of software analyzes data on the sphere. Eos, 96, 2015. http://dx.doi.org/10.1029/2015EO025851

2/19/2013     The Greenland page has been updated with a new version for GRACE Release Level 05 data, with data through September 2012. The previous page can still be accessed from there as well. The next update for new Greenland data will likely be after Jan2013 is released.