Patagonia Icefield melting observed by Gravity Recovery and Climate Experiment (GRACE)
Article first published online: 17 NOV 2007
Copyright 2007 by the American Geophysical Union.
Geophysical Research Letters
Volume 34, Issue 22, November 2007
How to Cite
2007), Patagonia Icefield melting observed by Gravity Recovery and Climate Experiment (GRACE), Geophys. Res. Lett., 34, L22501, doi:10.1029/2007GL031871., , , , and (
- Issue published online: 17 NOV 2007
- Article first published online: 17 NOV 2007
- Manuscript Accepted: 22 OCT 2007
- Manuscript Revised: 15 OCT 2007
- Manuscript Received: 30 AUG 2007
- gravity change;
- Patagonia Icefield;
- ice melting
 Using recently released reprocessed gravity solutions from the Gravity Recovery and Climate Experiment (GRACE), we estimate the ice loss rate for the Patagonia Icefield (PIF) of South America, for the period April 2002 through December 2006. After postglacial rebound and hydrological effects are corrected, the estimated rate is −27.9 ± 11 km3/year, equivalent to an average loss of ∼−1.6 m/year ice thickness change if evenly distributed over the entire PIF area. The estimated contribution to global sea level rise is 0.078 ± 0.031 mm/year. This is an independent confirmation of relatively large melting rate estimates from earlier studies employing topographic and cartographic data.