Mass balance and mass loss acceleration of the Greenland ice sheet (2002 - 2011) from GRACE gravity data
Mass balance and mass loss acceleration of the Greenland ice sheet (2002 - 2011) from GRACE gravity data We examine the magnitude and acceleration of the Greenland ice sheet mass loss between 2002 and 2011. We use monthly observations of time-variable gravity from the Gravity Recovery and Climate Ex...
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Walter de Gruyter GmbH
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crdegruyter:10.2478/v10156-011-0032-9 2023-05-15T16:26:06+02:00 Mass balance and mass loss acceleration of the Greenland ice sheet (2002 - 2011) from GRACE gravity data Joodaki, G. Nahavandchi, H. 2012 http://dx.doi.org/10.2478/v10156-011-0032-9 https://www.degruyter.com/view/journals/jogs/2/2/article-p156.xml https://www.degruyter.com/downloadpdf/journals/jogs/2/2/article-p156.xml unknown Walter de Gruyter GmbH Journal of Geodetic Science volume 2, issue 2, page 156-161 ISSN 2081-9943 2081-9919 Applied Mathematics Earth and Planetary Sciences (miscellaneous) Computers in Earth Sciences Geophysics Astronomy and Astrophysics journal-article 2012 crdegruyter https://doi.org/10.2478/v10156-011-0032-9 2022-04-14T05:02:08Z Mass balance and mass loss acceleration of the Greenland ice sheet (2002 - 2011) from GRACE gravity data We examine the magnitude and acceleration of the Greenland ice sheet mass loss between 2002 and 2011. We use monthly observations of time-variable gravity from the Gravity Recovery and Climate Experiment (GRACE) satellite gravity mission. The Greenland mass loss during this time period is not a constant, but accelerating with time. We have used a quadratic trend in addition to a linear trend, which is usually applied to the GRACE monthly time series of ice mass changes, to show that it better represents GRACE observations. Results of computations provide a mass decrease of -166±20 Gigatonne per year (Gt/yr) by using a linear trend and -111±21 Gt/yr by fitting a quadratic trend to the monthly time series. Quadratic fitting shows that the mass loss increases from -121 Gt/yr in 2002 - 2003 to -210 Gt/yr in 2006 - 2007 and -271 Gt/yr in 2010 - 2011 with an acceleration of -32±6 Gt/yr 2 in 2002 - 2011. This implies that the Greenland ice sheet contribution to sea level rise becomes larger with time. Contrary to recent studies, we use a non-isotropic filter whose degree of smoothing corresponds to a Gaussian filter with a radius of 340 km. Stripping effects in the GRACE data, C 20 effect, and leakage effects are applied. Article in Journal/Newspaper Greenland Ice Sheet De Gruyter (via Crossref) Greenland Journal of Geodetic Science 2 2 156 161 |
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Open Polar |
collection |
De Gruyter (via Crossref) |
op_collection_id |
crdegruyter |
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unknown |
topic |
Applied Mathematics Earth and Planetary Sciences (miscellaneous) Computers in Earth Sciences Geophysics Astronomy and Astrophysics |
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Applied Mathematics Earth and Planetary Sciences (miscellaneous) Computers in Earth Sciences Geophysics Astronomy and Astrophysics Joodaki, G. Nahavandchi, H. Mass balance and mass loss acceleration of the Greenland ice sheet (2002 - 2011) from GRACE gravity data |
topic_facet |
Applied Mathematics Earth and Planetary Sciences (miscellaneous) Computers in Earth Sciences Geophysics Astronomy and Astrophysics |
description |
Mass balance and mass loss acceleration of the Greenland ice sheet (2002 - 2011) from GRACE gravity data We examine the magnitude and acceleration of the Greenland ice sheet mass loss between 2002 and 2011. We use monthly observations of time-variable gravity from the Gravity Recovery and Climate Experiment (GRACE) satellite gravity mission. The Greenland mass loss during this time period is not a constant, but accelerating with time. We have used a quadratic trend in addition to a linear trend, which is usually applied to the GRACE monthly time series of ice mass changes, to show that it better represents GRACE observations. Results of computations provide a mass decrease of -166±20 Gigatonne per year (Gt/yr) by using a linear trend and -111±21 Gt/yr by fitting a quadratic trend to the monthly time series. Quadratic fitting shows that the mass loss increases from -121 Gt/yr in 2002 - 2003 to -210 Gt/yr in 2006 - 2007 and -271 Gt/yr in 2010 - 2011 with an acceleration of -32±6 Gt/yr 2 in 2002 - 2011. This implies that the Greenland ice sheet contribution to sea level rise becomes larger with time. Contrary to recent studies, we use a non-isotropic filter whose degree of smoothing corresponds to a Gaussian filter with a radius of 340 km. Stripping effects in the GRACE data, C 20 effect, and leakage effects are applied. |
format |
Article in Journal/Newspaper |
author |
Joodaki, G. Nahavandchi, H. |
author_facet |
Joodaki, G. Nahavandchi, H. |
author_sort |
Joodaki, G. |
title |
Mass balance and mass loss acceleration of the Greenland ice sheet (2002 - 2011) from GRACE gravity data |
title_short |
Mass balance and mass loss acceleration of the Greenland ice sheet (2002 - 2011) from GRACE gravity data |
title_full |
Mass balance and mass loss acceleration of the Greenland ice sheet (2002 - 2011) from GRACE gravity data |
title_fullStr |
Mass balance and mass loss acceleration of the Greenland ice sheet (2002 - 2011) from GRACE gravity data |
title_full_unstemmed |
Mass balance and mass loss acceleration of the Greenland ice sheet (2002 - 2011) from GRACE gravity data |
title_sort |
mass balance and mass loss acceleration of the greenland ice sheet (2002 - 2011) from grace gravity data |
publisher |
Walter de Gruyter GmbH |
publishDate |
2012 |
url |
http://dx.doi.org/10.2478/v10156-011-0032-9 https://www.degruyter.com/view/journals/jogs/2/2/article-p156.xml https://www.degruyter.com/downloadpdf/journals/jogs/2/2/article-p156.xml |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Journal of Geodetic Science volume 2, issue 2, page 156-161 ISSN 2081-9943 2081-9919 |
op_doi |
https://doi.org/10.2478/v10156-011-0032-9 |
container_title |
Journal of Geodetic Science |
container_volume |
2 |
container_issue |
2 |
container_start_page |
156 |
op_container_end_page |
161 |
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1766014970846248960 |