| DOI: | 10.1007/s00382-012-1454-5
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| Scopus记录号: | 2-s2.0-84871927265
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| 论文题名: | Heat budget of the upper Arctic Ocean under a warming climate |
| 作者: | Graham T.; Vellinga M.
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| 刊名: | Climate Dynamics
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| ISSN: | 9307575
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| 出版年: | 2013
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| 卷: | 40, 期:2017-01-02 | | 起始页码: | 143
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| 结束页码: | 153
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| 语种: | 英语
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| 英文关键词: | Arctic amplification
; Arctic Ocean
; Heat content
; Sea-ice
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| 英文摘要: | The heat budget of the upper Arctic Ocean is examined in an ensemble of coupled climate models under idealised increasing CO2 scenarios. All of the experiments show a strong amplification of surface air temperatures but a smaller increase in sea surface temperature than the rest of the world as heat is lost to the atmosphere as the sea-ice cover is reduced. We carry out a heat budget analysis of the Arctic Ocean in an ensemble of model runs to understand the changes that occur as the Arctic becomes ice free in summer. We find that as sea-ice retreats heat is lost from the ocean surface to the atmosphere contributing to the amplification of Arctic surface temperatures. Furthermore, heat is mixed upwards into the mixed layer as a result of increased upper ocean mixing and there is increased advection of heat into the Arctic as the ice edge retreats. Heat lost from the upper Arctic Ocean to the atmosphere is therefore replenished by mixing of warmer water from below and by increased advection of warm water from lower latitudes. The ocean is therefore able to contribute more to Arctic amplification. © 2012 Crown Copyright. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/54954
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| Appears in Collections: | 过去全球变化的重建
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作者单位: | Met Ofiice Hadley Centre, Fitzroy Road, Exeter, EX1 3PB, United Kingdom
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| Recommended Citation: | |
Graham T.,Vellinga M.. Heat budget of the upper Arctic Ocean under a warming climate[J]. Climate Dynamics,2013-01-01,40(2017-01-02)
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