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|a Climate change and forest fires synergistically drive widespread melt events of the Greenland Ice Sheet |h [electronic resource] |y English. |
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|a [S.l.] : |b National Academy of Sciences, |c 2014-06-03. |
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|a Proceedings of the National Academy of Sciences Volume 111 Number 22 |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 In July 2012, over 97% of the Greenland Ice Sheet experienced
surface melt, the first widespread melt during the era of satellite
remote sensing. Analysis of six Greenland shallow firn cores from
the dry snow region confirms that the most recent prior widespread
melt occurred in 1889. A firn core from the center of the ice
sheet demonstrated that exceptionally warm temperatures combined
with black carbon sediments from Northern Hemisphere
forest fires reduced albedo below a critical threshold in the dry
snow region, and caused the melting events in both 1889 and
2012. We use these data to project the frequency of widespread
melt into the year 2100. Since Arctic temperatures and the frequency
of forest fires are both expected to rise with climate
change, our results suggest that widespread melt events on the
Greenland Ice Sheet may begin to occur almost annually by the end
of century. These events are likely to alter the surface mass balance
of the ice sheet, leaving the surface susceptible to further melting. |
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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/FI15062123/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/21/23/00001/FI15062123thm.jpg |