The Cryosphere
The Cryosphere
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Articles | Volume 12, issue 10
Articles | Volume 12, issue 10
https://doi.org/10.5194/tc-12-3373-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-12-3373-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 12, issue 10
Research article
 | 
26 Oct 2018
Research article |  | 26 Oct 2018

Arctic climate: changes in sea ice extent outweigh changes in snow cover

Aaron Letterly, Jeffrey Key, and Yinghui Liu

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Short summary
Significant reductions in Arctic sea ice and snow cover on Arctic land have led to increases in absorbed solar energy by the surface. Does one play a more important role in Arctic climate change? Using 34 years of satellite data we found that solar energy absorption increased by 10 % over the ocean, which was 3 times greater than over land. Therefore, the decreasing sea ice cover, not changes in terrestrial snow cover, has been the dominant feedback mechanism over the last few decades.
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