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|a The Greenland Ice Sheet's surface mass balance in a seasonally sea ice-free Arctic |h [electronic resource] |y English. |
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|a [S.l.] : |b American Geophysical Union, |c 2013. |
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|a Journal of Geophysical Research Volume 118 |b Earth Surface |y English. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a General circulation models predict a rapid decrease in sea ice extent with concurrent
increases in near-surface air temperature and precipitation in the Arctic over the 21st
century. This has led to suggestions that some Arctic land ice masses may experience an
increase in accumulation due to enhanced evaporation from a seasonally sea ice-free Arctic
Ocean. To investigate the impact of this phenomenon on Greenland Ice Sheet climate and
surface mass balance (SMB), a regional climate model, HadRM3, was used to force an
insolation-temperature melt SMB model. A set of experiments designed to investigate the
role of sea ice independently from sea surface temperature (SST) forcing are described. In
the warmer and wetter SI + SST simulation, Greenland experiences a 23% increase in winter
SMB but 65% reduced summer SMB, resulting in a net decrease in the annual value. This
study shows that sea ice decline contributes to the increased winter balance, causing 25% of
the increase in winter accumulation; this is largest in eastern Greenland as the result of
increased evaporation in the Greenland Sea. These results indicate that the seasonal cycle of
Greenland’s SMB will increase dramatically as global temperatures increase, with the
largest changes in temperature and precipitation occurring in winter. This demonstrates that
the accurate prediction of changes in sea ice cover is important for predicting Greenland
SMB and ice sheet evolution. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15062154/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/21/54/00001/FI15062154_thm.jpg |
