| DOI: | 10.1007/s00382-016-2976-z
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| Scopus记录号: | 2-s2.0-84961656584
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| 论文题名: | A modeling investigation of the Arctic sea ice-atmosphere feedback |
| 作者: | Liptak J.; Strong C.
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| 刊名: | Climate Dynamics
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| ISSN: | 9307575
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| 出版年: | 2016
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| 卷: | 47, 期:2017-07-08 | | 起始页码: | 2471
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| 结束页码: | 2480
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| 语种: | 英语
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| 英文关键词: | Climate modeling
; Feedback
; Sea ice
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| 英文摘要: | We examine the effects of a general sea ice-atmosphere feedback (SAF) over the Barents Sea by turning it on and off in a coupled climate model. The SAF is “turned off” by forcing the atmosphere with surface turbulent and longwave heat fluxes and surface temperatures that reflect climatological sea ice cover over the Barents Sea, while allowing the sea ice and sea surface temperature (SST) to freely evolve. Suppressing the SAF reduces the variability of near-surface air temperature (T), sea ice concentration (I), and SST averaged over the Barents Sea by up to 35 %, confirming the existence of a positive thermodynamically-driven SAF found in prior uncoupled modeling studies. Decreased interannual variability accounts for most of the total reduction in I, T, and SST variability, and the largest reductions in variability occur during the winter sea ice growth and spring melt seasons. In contrast to the results from the coupled model experiment, the total variances of I, T, and SST do not significantly change in response to suppressing the SAF in a simple vector autoregressive model, indicating that the SAF is nonlinear. © 2016, Springer-Verlag Berlin Heidelberg. |
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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/53518
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| Appears in Collections: | 过去全球变化的重建
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作者单位: | University of Michigan, Ann Arbor, MI, United States; University of Utah, Salt Lake City, UT, United States
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| Recommended Citation: | |
Liptak J.,Strong C.. A modeling investigation of the Arctic sea ice-atmosphere feedback[J]. Climate Dynamics,2016-01-01,47(2017-07-08)
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