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DOI | 10.5194/tc-12-2159-2018 |
Sunlight, clouds, sea ice, albedo, and the radiative budget: The umbrella versus the blanket | |
Perovich D.K. | |
发表日期 | 2018 |
ISSN | 19940416 |
卷号 | 12期号:6 |
英文摘要 | The surface radiation budget of the Arctic Ocean plays a central role in summer ice melt and is governed by clouds and surface albedo. I calculated the net radiation flux for a range of albedos under sunny and cloudy skies and determined the break-even value, where the net radiation is the same for cloudy and sunny skies. Break-even albedos range from 0.30 in September to 0.58 in July. For snow-covered or bare ice, sunny skies always result in less radiative heat input. In contrast, leads always have, and ponds usually have, more radiative input under sunny skies than cloudy skies. Snow-covered ice has a net radiation flux that is negative or near zero under sunny skies, resulting in radiative cooling. Areally averaged albedos for sea ice in July result in a smaller net radiation flux under cloudy skies. For May, June, August, and September, the net radiation is smaller under sunny skies. © Author(s) 2018. |
学科领域 | albedo; cloud cover; ice cover; net radiation; radiation budget; sea ice; snow cover; solar radiation; Arctic Ocean |
语种 | 英语 |
scopus关键词 | albedo; cloud cover; ice cover; net radiation; radiation budget; sea ice; snow cover; solar radiation; Arctic Ocean |
来源期刊 | Cryosphere |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/119121 |
作者单位 | Thayer School of Engineering, Dartmouth College, Hanover, 03755, United States |
推荐引用方式 GB/T 7714 | Perovich D.K.. Sunlight, clouds, sea ice, albedo, and the radiative budget: The umbrella versus the blanket[J],2018,12(6). |
APA | Perovich D.K..(2018).Sunlight, clouds, sea ice, albedo, and the radiative budget: The umbrella versus the blanket.Cryosphere,12(6). |
MLA | Perovich D.K.."Sunlight, clouds, sea ice, albedo, and the radiative budget: The umbrella versus the blanket".Cryosphere 12.6(2018). |
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