Regional variability in sea ice melt in a changing Arctic
In recent years, the Arctic sea ice cover has undergone a precipitous decline in summer extent. The sea ice mass balance integrates heat and provides insight on atmospheric and oceanic forcing. The amount of surface melt and bottom melt that occurs during the summer melt season was measured at 41 si...
Published in: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
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ftpubmed:oai:pubmedcentral.nih.gov:4455714 2023-05-15T14:46:38+02:00 Regional variability in sea ice melt in a changing Arctic Perovich, Donald K. Richter-Menge, Jacqueline A. 2015-07-13 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4455714/ http://www.ncbi.nlm.nih.gov/pubmed/26032323 https://doi.org/10.1098/rsta.2014.0165 en eng The Royal Society Publishing http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4455714/ http://www.ncbi.nlm.nih.gov/pubmed/26032323 http://dx.doi.org/10.1098/rsta.2014.0165 © 2015 The Author(s) Published by the Royal Society. All rights reserved. Articles Text 2015 ftpubmed https://doi.org/10.1098/rsta.2014.0165 2016-07-17T00:00:45Z In recent years, the Arctic sea ice cover has undergone a precipitous decline in summer extent. The sea ice mass balance integrates heat and provides insight on atmospheric and oceanic forcing. The amount of surface melt and bottom melt that occurs during the summer melt season was measured at 41 sites over the time period 1957 to 2014. There are large regional and temporal variations in both surface and bottom melting. Combined surface and bottom melt ranged from 16 to 294 cm, with a mean of 101 cm. The mean ice equivalent surface melt was 48 cm and the mean bottom melt was 53 cm. On average, surface melting decreases moving northward from the Beaufort Sea towards the North Pole; however interannual differences in atmospheric forcing can overwhelm the influence of latitude. Substantial increases in bottom melting are a major contributor to ice losses in the Beaufort Sea, due to decreases in ice concentration. In the central Arctic, surface and bottom melting demonstrate interannual variability, but show no strong temporal trends from 2000 to 2014. This suggests that under current conditions, summer melting in the central Arctic is not large enough to completely remove the sea ice cover. Text Arctic Beaufort Sea North Pole Sea ice PubMed Central (PMC) Arctic North Pole Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 373 2045 20140165 |
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Articles Perovich, Donald K. Richter-Menge, Jacqueline A. Regional variability in sea ice melt in a changing Arctic |
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description |
In recent years, the Arctic sea ice cover has undergone a precipitous decline in summer extent. The sea ice mass balance integrates heat and provides insight on atmospheric and oceanic forcing. The amount of surface melt and bottom melt that occurs during the summer melt season was measured at 41 sites over the time period 1957 to 2014. There are large regional and temporal variations in both surface and bottom melting. Combined surface and bottom melt ranged from 16 to 294 cm, with a mean of 101 cm. The mean ice equivalent surface melt was 48 cm and the mean bottom melt was 53 cm. On average, surface melting decreases moving northward from the Beaufort Sea towards the North Pole; however interannual differences in atmospheric forcing can overwhelm the influence of latitude. Substantial increases in bottom melting are a major contributor to ice losses in the Beaufort Sea, due to decreases in ice concentration. In the central Arctic, surface and bottom melting demonstrate interannual variability, but show no strong temporal trends from 2000 to 2014. This suggests that under current conditions, summer melting in the central Arctic is not large enough to completely remove the sea ice cover. |
format |
Text |
author |
Perovich, Donald K. Richter-Menge, Jacqueline A. |
author_facet |
Perovich, Donald K. Richter-Menge, Jacqueline A. |
author_sort |
Perovich, Donald K. |
title |
Regional variability in sea ice melt in a changing Arctic |
title_short |
Regional variability in sea ice melt in a changing Arctic |
title_full |
Regional variability in sea ice melt in a changing Arctic |
title_fullStr |
Regional variability in sea ice melt in a changing Arctic |
title_full_unstemmed |
Regional variability in sea ice melt in a changing Arctic |
title_sort |
regional variability in sea ice melt in a changing arctic |
publisher |
The Royal Society Publishing |
publishDate |
2015 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4455714/ http://www.ncbi.nlm.nih.gov/pubmed/26032323 https://doi.org/10.1098/rsta.2014.0165 |
geographic |
Arctic North Pole |
geographic_facet |
Arctic North Pole |
genre |
Arctic Beaufort Sea North Pole Sea ice |
genre_facet |
Arctic Beaufort Sea North Pole Sea ice |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4455714/ http://www.ncbi.nlm.nih.gov/pubmed/26032323 http://dx.doi.org/10.1098/rsta.2014.0165 |
op_rights |
© 2015 The Author(s) Published by the Royal Society. All rights reserved. |
op_doi |
https://doi.org/10.1098/rsta.2014.0165 |
container_title |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
373 |
container_issue |
2045 |
container_start_page |
20140165 |
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1766317839227027456 |