Brief communication: Antarctic sea ice gain does not compensate for increased solar absorption from Arctic ice loss

Here we show on the basis of the new consistent long-term observational dataset APP-x, that the observed increase of sea ice extent in the Antarctic cannot compensate for the loss of Arctic sea ice in terms of the shortwave radiation budget in the polar oceans poleward of 50° latitude. The observati...

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Bibliographic Details
Main Authors: Katlein, Christian, Hendricks, Stefan, Key, Jeffrey
Format: Article in Journal/Newspaper
Language:unknown
Published: 2017
Subjects:
Arctic
Antarctic
The Antarctic
albedo
Antarc*
Sea ice
The Cryosphere
The Cryosphere Discussions
Online Access:https://epic.awi.de/id/eprint/43048/
https://epic.awi.de/id/eprint/43048/1/tc-2016-279.pdf
https://doi.org/10.5194/tc-2016-279
https://hdl.handle.net/10013/epic.49588
https://hdl.handle.net/10013/epic.49588.d001
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Summary:Here we show on the basis of the new consistent long-term observational dataset APP-x, that the observed increase of sea ice extent in the Antarctic cannot compensate for the loss of Arctic sea ice in terms of the shortwave radiation budget in the polar oceans poleward of 50° latitude. The observations show, that apart from retreating sea-ice additional effects like albedo changes and especially changing cloud coverage lead to a total increase of solar shortwave energy deposited into the polar oceans despite of the marginal increase in Antarctic winter sea ice extent.

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