| Literature DB >> 23197528 |
Andrew Shepherd1, Erik R Ivins, Geruo A, Valentina R Barletta, Mike J Bentley, Srinivas Bettadpur, Kate H Briggs, David H Bromwich, René Forsberg, Natalia Galin, Martin Horwath, Stan Jacobs, Ian Joughin, Matt A King, Jan T M Lenaerts, Jilu Li, Stefan R M Ligtenberg, Adrian Luckman, Scott B Luthcke, Malcolm McMillan, Rakia Meister, Glenn Milne, Jeremie Mouginot, Alan Muir, Julien P Nicolas, John Paden, Antony J Payne, Hamish Pritchard, Eric Rignot, Helmut Rott, Louise Sandberg Sørensen, Ted A Scambos, Bernd Scheuchl, Ernst J O Schrama, Ben Smith, Aud V Sundal, Jan H van Angelen, Willem J van de Berg, Michiel R van den Broeke, David G Vaughan, Isabella Velicogna, John Wahr, Pippa L Whitehouse, Duncan J Wingham, Donghui Yi, Duncan Young, H Jay Zwally.
Abstract
We combined an ensemble of satellite altimetry, interferometry, and gravimetry data sets using common geographical regions, time intervals, and models of surface mass balance and glacial isostatic adjustment to estimate the mass balance of Earth's polar ice sheets. We find that there is good agreement between different satellite methods--especially in Greenland and West Antarctica--and that combining satellite data sets leads to greater certainty. Between 1992 and 2011, the ice sheets of Greenland, East Antarctica, West Antarctica, and the Antarctic Peninsula changed in mass by -142 ± 49, +14 ± 43, -65 ± 26, and -20 ± 14 gigatonnes year(-1), respectively. Since 1992, the polar ice sheets have contributed, on average, 0.59 ± 0.20 millimeter year(-1) to the rate of global sea-level rise.Mesh：
Year: 2012 PMID： 23197528 DOI： 10.1126/science.1228102
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728