Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE
[1] We use monthly measurements of time-variable gravity from the GRACE (Gravity Recovery and Climate Experiment) satellite gravity mission to determine the ice mass-loss for the Greenland and Antarctic Ice Sheets during the period between April 2002 and February 2009. We find that during this time...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.170.8753 2023-05-15T13:44:46+02:00 Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE I. Velicogna The Pennsylvania State University CiteSeerX Archives 2009 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.170.8753 http://thingsbreak.files.wordpress.com/2009/10/increasing-rates-of-ice-mass-loss-from-the-greenland-and-antarctic-ice-sheets-revealed-by-grace.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.170.8753 http://thingsbreak.files.wordpress.com/2009/10/increasing-rates-of-ice-mass-loss-from-the-greenland-and-antarctic-ice-sheets-revealed-by-grace.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://thingsbreak.files.wordpress.com/2009/10/increasing-rates-of-ice-mass-loss-from-the-greenland-and-antarctic-ice-sheets-revealed-by-grace.pdf 2006a 2006b Chen et al Rignot et al text 2009 ftciteseerx 2016-01-07T16:02:58Z [1] We use monthly measurements of time-variable gravity from the GRACE (Gravity Recovery and Climate Experiment) satellite gravity mission to determine the ice mass-loss for the Greenland and Antarctic Ice Sheets during the period between April 2002 and February 2009. We find that during this time period the mass loss of the ice sheets is not a constant, but accelerating with time, i.e., that the GRACE observations are better represented by a quadratic trend than by a linear one, implying that the ice sheets contribution to sea level becomes larger with time. In Greenland, the mass loss increased from 137 Gt/yr in 2002–2003 to 286 Gt/yr in 2007–2009, i.e., an acceleration of 30 ± 11 Gt/yr 2 in 2002–2009. In Antarctica the mass loss increased from 104 Gt/yr in 2002–2006 to 246 Gt/yr in 2006–2009, i.e., an acceleration of 26 ± 14 Gt/yr 2 in 2002–2009. The observed acceleration in ice sheet mass loss helps reconcile GRACE ice mass estimates obtained for different time periods. Citation: Velicogna, I. (2009), Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE, Geophys. Res. Lett., 36, L19503, doi:10.1029/2009GL040222. 1. Text Antarc* Antarctic Antarctica Greenland Ice Sheet Unknown Antarctic Greenland |
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2006a 2006b Chen et al Rignot et al |
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2006a 2006b Chen et al Rignot et al I. Velicogna Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE |
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2006a 2006b Chen et al Rignot et al |
description |
[1] We use monthly measurements of time-variable gravity from the GRACE (Gravity Recovery and Climate Experiment) satellite gravity mission to determine the ice mass-loss for the Greenland and Antarctic Ice Sheets during the period between April 2002 and February 2009. We find that during this time period the mass loss of the ice sheets is not a constant, but accelerating with time, i.e., that the GRACE observations are better represented by a quadratic trend than by a linear one, implying that the ice sheets contribution to sea level becomes larger with time. In Greenland, the mass loss increased from 137 Gt/yr in 2002–2003 to 286 Gt/yr in 2007–2009, i.e., an acceleration of 30 ± 11 Gt/yr 2 in 2002–2009. In Antarctica the mass loss increased from 104 Gt/yr in 2002–2006 to 246 Gt/yr in 2006–2009, i.e., an acceleration of 26 ± 14 Gt/yr 2 in 2002–2009. The observed acceleration in ice sheet mass loss helps reconcile GRACE ice mass estimates obtained for different time periods. Citation: Velicogna, I. (2009), Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE, Geophys. Res. Lett., 36, L19503, doi:10.1029/2009GL040222. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
I. Velicogna |
author_facet |
I. Velicogna |
author_sort |
I. Velicogna |
title |
Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE |
title_short |
Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE |
title_full |
Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE |
title_fullStr |
Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE |
title_full_unstemmed |
Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE |
title_sort |
increasing rates of ice mass loss from the greenland and antarctic ice sheets revealed by grace |
publishDate |
2009 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.170.8753 http://thingsbreak.files.wordpress.com/2009/10/increasing-rates-of-ice-mass-loss-from-the-greenland-and-antarctic-ice-sheets-revealed-by-grace.pdf |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic Antarctica Greenland Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica Greenland Ice Sheet |
op_source |
http://thingsbreak.files.wordpress.com/2009/10/increasing-rates-of-ice-mass-loss-from-the-greenland-and-antarctic-ice-sheets-revealed-by-grace.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.170.8753 http://thingsbreak.files.wordpress.com/2009/10/increasing-rates-of-ice-mass-loss-from-the-greenland-and-antarctic-ice-sheets-revealed-by-grace.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766206037133623296 |