气候变化领域集成服务门户(CCPortal): Asymmetry in the seasonal cycle of Antarctic sea ice driven by insolation

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DOI	10.1038/s41561-022-00913-6
	Asymmetry in the seasonal cycle of Antarctic sea ice driven by insolation
	Roach, L. A.; Eisenman, I; Wagner, T. J. W.; Blanchard-Wrigglesworth, E.; Bitz, C. M.
发表日期	2022
ISSN	1752-0894
EISSN	1752-0908
起始页码	277
结束页码	+
卷号	15 期号:4 页码:6
英文摘要	Solar radiation drives the asymmetry in the seasonal cycle of Antarctic sea ice, according to climate model simulations. The mean seasonal cycle of Antarctic sea-ice extent is asymmetric, with the period of ice retreat being approximately two months shorter than the period of ice advance. This feature is largely consistent in observations from year to year and across different satellite products. The asymmetry is also broadly reproduced by comprehensive climate models across generations from CMIP3 to CMIP6, with limited impacts from internal variability. Using a range of idealized climate models of varying complexity, we show that the seasonal cycle in top-of-atmosphere incident solar radiation drives the asymmetry. Because insolation in southern high latitudes departs from a sinusoid by having a narrow peak of intense brightness in summer and a long period of low light in winter, there is rapid summer ice retreat and gradual winter ice advance. This simple physical explanation is markedly different from those proposed in previous studies.
学科领域	Geosciences, Multidisciplinary
语种	英语
WOS研究方向	Geology
WOS记录号	WOS:000773962000001
来源期刊	NATURE GEOSCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272545
作者单位	University of Washington; University of Washington Seattle; University of California System; University of California San Diego; Scripps Institution of Oceanography; University of Wisconsin System; University of Wisconsin Madison; University of North Carolina; University of North Carolina Wilmington; National Aeronautics & Space Administration (NASA); NASA Goddard Space Flight Center; Columbia University
推荐引用方式 GB/T 7714	Roach, L. A.,Eisenman, I,Wagner, T. J. W.,et al. Asymmetry in the seasonal cycle of Antarctic sea ice driven by insolation[J],2022,15(4):6.
APA	Roach, L. A.,Eisenman, I,Wagner, T. J. W.,Blanchard-Wrigglesworth, E.,&Bitz, C. M..(2022).Asymmetry in the seasonal cycle of Antarctic sea ice driven by insolation.NATURE GEOSCIENCE,15(4),6.
MLA	Roach, L. A.,et al."Asymmetry in the seasonal cycle of Antarctic sea ice driven by insolation".NATURE GEOSCIENCE 15.4(2022):6.