Ice sheet mass balance and sea level
Abstract Determining the mass balance of the Greenland and Antarctic ice sheets (GIS and AIS) has long been a major challenge for polar science. But until recent advances in measurement technology, the uncertainty in ice sheet mass balance estimates was greater than any net contribution to sea level...
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crcambridgeupr:10.1017/s0954102009990137 2024-03-03T08:38:36+00:00 Ice sheet mass balance and sea level Allison, I. Alley, R.B. Fricker, H.A. Thomas, R.H. Warner, R.C. 2009 http://dx.doi.org/10.1017/s0954102009990137 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102009990137 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 21, issue 5, page 413-426 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2009 crcambridgeupr https://doi.org/10.1017/s0954102009990137 2024-02-08T08:46:24Z Abstract Determining the mass balance of the Greenland and Antarctic ice sheets (GIS and AIS) has long been a major challenge for polar science. But until recent advances in measurement technology, the uncertainty in ice sheet mass balance estimates was greater than any net contribution to sea level change. The Fourth Assessment Report of the Intergovernmental Panel on Climate Change (AR4) was able, for the first time, to conclude that, taken together, the GIS and AIS have probably been contributing to sea level rise over the period 1993–2003 at an average rate estimated at 0.4 mm yr -1 . Since the cut-off date for work included in AR4, a number of further studies of the mass balance of GIS and AIS have been made using satellite altimetry, satellite gravity measurements and estimates of mass influx and discharge using a variety of techniques. Overall, these studies reinforce the conclusion that the ice sheets are contributing to present sea level rise, and suggest that the rate of loss from GIS has recently increased. The largest unknown in the projections of sea level rise over the next century is the potential for rapid dynamic collapse of ice sheets. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Greenland Ice Sheet Cambridge University Press Antarctic Greenland Antarctic Science 21 5 413 426 |
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Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Allison, I. Alley, R.B. Fricker, H.A. Thomas, R.H. Warner, R.C. Ice sheet mass balance and sea level |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Determining the mass balance of the Greenland and Antarctic ice sheets (GIS and AIS) has long been a major challenge for polar science. But until recent advances in measurement technology, the uncertainty in ice sheet mass balance estimates was greater than any net contribution to sea level change. The Fourth Assessment Report of the Intergovernmental Panel on Climate Change (AR4) was able, for the first time, to conclude that, taken together, the GIS and AIS have probably been contributing to sea level rise over the period 1993–2003 at an average rate estimated at 0.4 mm yr -1 . Since the cut-off date for work included in AR4, a number of further studies of the mass balance of GIS and AIS have been made using satellite altimetry, satellite gravity measurements and estimates of mass influx and discharge using a variety of techniques. Overall, these studies reinforce the conclusion that the ice sheets are contributing to present sea level rise, and suggest that the rate of loss from GIS has recently increased. The largest unknown in the projections of sea level rise over the next century is the potential for rapid dynamic collapse of ice sheets. |
format |
Article in Journal/Newspaper |
author |
Allison, I. Alley, R.B. Fricker, H.A. Thomas, R.H. Warner, R.C. |
author_facet |
Allison, I. Alley, R.B. Fricker, H.A. Thomas, R.H. Warner, R.C. |
author_sort |
Allison, I. |
title |
Ice sheet mass balance and sea level |
title_short |
Ice sheet mass balance and sea level |
title_full |
Ice sheet mass balance and sea level |
title_fullStr |
Ice sheet mass balance and sea level |
title_full_unstemmed |
Ice sheet mass balance and sea level |
title_sort |
ice sheet mass balance and sea level |
publisher |
Cambridge University Press (CUP) |
publishDate |
2009 |
url |
http://dx.doi.org/10.1017/s0954102009990137 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102009990137 |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic Antarctic Science Greenland Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctic Science Greenland Ice Sheet |
op_source |
Antarctic Science volume 21, issue 5, page 413-426 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102009990137 |
container_title |
Antarctic Science |
container_volume |
21 |
container_issue |
5 |
container_start_page |
413 |
op_container_end_page |
426 |
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1792507014803357696 |