Surface cloud warming increases as Fall Arctic sea ice cover decreases
During the Arctic night, clouds regulate surface energy budgets through longwave warming alone. During fall, any increase in low-level opaque clouds will increase surface cloud warming and could potentially delay sea ice formation. While an increase in clouds due to fall sea ice loss has been observ...
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2023
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Online Access: | http://dx.doi.org/10.22541/essoar.168121512.29859348/v1 |
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crwinnower:10.22541/essoar.168121512.29859348/v1 2024-06-02T08:01:27+00:00 Surface cloud warming increases as Fall Arctic sea ice cover decreases Arouf, Assia Chepfer, Hélène Kay, Jennifer E L'Ecuyer, Tristan Lac, Jean 2023 http://dx.doi.org/10.22541/essoar.168121512.29859348/v1 unknown Authorea, Inc. posted-content 2023 crwinnower https://doi.org/10.22541/essoar.168121512.29859348/v1 2024-05-07T14:19:26Z During the Arctic night, clouds regulate surface energy budgets through longwave warming alone. During fall, any increase in low-level opaque clouds will increase surface cloud warming and could potentially delay sea ice formation. While an increase in clouds due to fall sea ice loss has been observed, quantifying the surface warming is observationally challenging. Here, we quantify surface cloud warming using spaceborne lidar observations. By instantaneously co-locating surface cloud warming and sea ice observations in regions where sea ice varies, we find October large surface cloud warming values (> 80 W m-2) are much more frequent (~+50%) over open water than over sea ice. Notably, in November large surface cloud warming values (> 80 W m-2) occur more frequently (~+200%) over open water than over sea ice. These results suggest more surface warming caused by low-level opaque clouds in the future as open water persists later into the fall. Other/Unknown Material Arctic Sea ice The Winnower Arctic |
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Open Polar |
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The Winnower |
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crwinnower |
language |
unknown |
description |
During the Arctic night, clouds regulate surface energy budgets through longwave warming alone. During fall, any increase in low-level opaque clouds will increase surface cloud warming and could potentially delay sea ice formation. While an increase in clouds due to fall sea ice loss has been observed, quantifying the surface warming is observationally challenging. Here, we quantify surface cloud warming using spaceborne lidar observations. By instantaneously co-locating surface cloud warming and sea ice observations in regions where sea ice varies, we find October large surface cloud warming values (> 80 W m-2) are much more frequent (~+50%) over open water than over sea ice. Notably, in November large surface cloud warming values (> 80 W m-2) occur more frequently (~+200%) over open water than over sea ice. These results suggest more surface warming caused by low-level opaque clouds in the future as open water persists later into the fall. |
format |
Other/Unknown Material |
author |
Arouf, Assia Chepfer, Hélène Kay, Jennifer E L'Ecuyer, Tristan Lac, Jean |
spellingShingle |
Arouf, Assia Chepfer, Hélène Kay, Jennifer E L'Ecuyer, Tristan Lac, Jean Surface cloud warming increases as Fall Arctic sea ice cover decreases |
author_facet |
Arouf, Assia Chepfer, Hélène Kay, Jennifer E L'Ecuyer, Tristan Lac, Jean |
author_sort |
Arouf, Assia |
title |
Surface cloud warming increases as Fall Arctic sea ice cover decreases |
title_short |
Surface cloud warming increases as Fall Arctic sea ice cover decreases |
title_full |
Surface cloud warming increases as Fall Arctic sea ice cover decreases |
title_fullStr |
Surface cloud warming increases as Fall Arctic sea ice cover decreases |
title_full_unstemmed |
Surface cloud warming increases as Fall Arctic sea ice cover decreases |
title_sort |
surface cloud warming increases as fall arctic sea ice cover decreases |
publisher |
Authorea, Inc. |
publishDate |
2023 |
url |
http://dx.doi.org/10.22541/essoar.168121512.29859348/v1 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_doi |
https://doi.org/10.22541/essoar.168121512.29859348/v1 |
_version_ |
1800745818536280064 |