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|a Recovery mechanisms of Arctic summer sea ice |h [electronic resource]. |
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|a [S.l.] : |b American Geophysical Union, |c 2011-01-26. |
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|a Geophysical Research Letters, Volume 38. |
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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 We examine the recovery of Arctic sea ice from
prescribed ice‐free summer conditions in simulations of 21st
century climate in an atmosphere–ocean general circulation
model. We find that ice extent recovers typically within two
years. The excess oceanic heat that had built up during the
ice‐free summer is rapidly returned to the atmosphere during
the following autumn and winter, and then leaves the Arctic
partly through increased longwave emission at the top of the
atmosphere and partly through reduced atmospheric heat
advection from lower latitudes. Oceanic heat transport does
not contribute significantly to the loss of the excess heat. Our
results suggest that anomalous loss of Arctic sea ice during
a single summer is reversible, as the ice–albedo feedback
is alleviated by large‐scale recovery mechanisms. Hence,
hysteretic threshold behavior (or a “tipping point”) is
unlikely to occur during the decline of Arctic summer seaice
cover in the 21st century. |
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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 Sea ice--Arctic regions. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15042551/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/04/25/51/00001/FI15042551_thm.jpg |
