气候变化领域集成服务门户(CCPortal): Short-term Impacts of Arctic Summer Cyclones on Sea Ice Extent in the Marginal Ice Zone

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DOI	10.1029/2020GL088338
	Short-term Impacts of Arctic Summer Cyclones on Sea Ice Extent in the Marginal Ice Zone
	Finocchio P.M.; Doyle J.D.; Stern D.P.; Fearon M.G.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:13
英文摘要	The degree to which Arctic cyclones locally affect sea ice cover during the melt season is unclear. To address this, we use the ERA-5 reanalysis to statistically analyze how surface energy fluxes and wind forcing from Arctic cyclones in the marginal ice zone between May and August (1999–2018) locally affect sea ice extent on 1–10 day time scales. In May and June, cyclones decelerate the local seasonal loss of sea ice extent compared to when no cyclone is present, which we hypothesize is due to cyclones reducing net shortwave radiative fluxes at the surface. By July and August, cyclones no longer decelerate the seasonal loss of sea ice extent, despite still reducing the net surface energy flux. Surface wind forcing across the ice edge only explains up to 13.5% of the variance in local sea ice extent in August, suggesting that processes other than wind-induced drift and atmospheric energy fluxes drive late-summer sea ice extent variability. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Interfacial energy; Sea ice; Atmospheric energy; Marginal Ice Zone; Sea ice extent; Sea-ice cover; Shortwave radiative flux; Surface energy fluxes; Surface winds; Wind forcing; Storms; Arctic Oscillation; cyclone; ice cover; marginal ice zone; sea ice; shortwave radiation; spatiotemporal analysis; wind forcing; Arctic Ocean
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170151
作者单位	National Research Council, Monterey, CA, United States; Naval Research Laboratory, Monterey, CA, United States; University Corporation for Atmospheric Research, Monterey, CA, United States
推荐引用方式 GB/T 7714	Finocchio P.M.,Doyle J.D.,Stern D.P.,et al. Short-term Impacts of Arctic Summer Cyclones on Sea Ice Extent in the Marginal Ice Zone[J],2020,47(13).
APA	Finocchio P.M.,Doyle J.D.,Stern D.P.,&Fearon M.G..(2020).Short-term Impacts of Arctic Summer Cyclones on Sea Ice Extent in the Marginal Ice Zone.Geophysical Research Letters,47(13).
MLA	Finocchio P.M.,et al."Short-term Impacts of Arctic Summer Cyclones on Sea Ice Extent in the Marginal Ice Zone".Geophysical Research Letters 47.13(2020).