气候变化领域集成服务门户(CCPortal): Changes in Arctic moisture transport over the North Pacific associated with sea ice loss

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DOI	10.1007/s00382-019-05011-9
	Changes in Arctic moisture transport over the North Pacific associated with sea ice loss
	McGraw M.C.; Baggett C.F.; Liu C.; Mundhenk B.D.
发表日期	2020
ISSN	0930-7575
起始页码	491
结束页码	506
卷号	54 期号:2020-01-02
英文摘要	Recent work has emphasized the important role of midlatitude moisture fluxes in enhancing Arctic warming and sea ice loss. Conversely, less attention has been paid to the impact of Arctic warming and sea ice loss on midlatitude moisture fluxes. Analysis of an atmosphere-only general circulation model indicates that sea ice loss promotes changes in the large-scale midlatitude atmospheric circulation that have a substantial impact on moisture transport into and out of the Arctic. While poleward moisture transport into the Arctic does increase in a reduced sea ice climate, the increase in equatorward moisture transport out of the Arctic is larger, particularly in boreal winter over the North Pacific. A decomposition of the meridional moisture transport reveals that this increase in equatorward moisture transport is driven, at least in part, by changes in the background circulation. Specifically, sea ice loss drives a series of large-scale tropospheric circulation changes, including an increase in cyclonic Rossby wave breaking over the North Pacific that results in a preferential enhancement of equatorward moisture transport out of the Arctic in the days following the peak of the Rossby wave breaking event. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Arctic amplification; Moisture transport; Rossby wave breaking; Sea ice loss
语种	英语
scopus关键词	amplification; atmospheric circulation; atmospheric general circulation model; midlatitude environment; moisture transfer; Rossby wave; sea ice; troposphere; warming; wave breaking; Arctic; Pacific Ocean; Pacific Ocean (North)
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145753
作者单位	Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; Department of Atmospheric Science, University of Washington, Seattle, WA, United States; Climate Prediction Center/NCEP/NWS/Innovim, LLC, College Park, MD, United States; 14th Weather Squadron, United States Air Force, Asheville, NC, United States
推荐引用方式 GB/T 7714	McGraw M.C.,Baggett C.F.,Liu C.,et al. Changes in Arctic moisture transport over the North Pacific associated with sea ice loss[J],2020,54(2020-01-02).
APA	McGraw M.C.,Baggett C.F.,Liu C.,&Mundhenk B.D..(2020).Changes in Arctic moisture transport over the North Pacific associated with sea ice loss.Climate Dynamics,54(2020-01-02).
MLA	McGraw M.C.,et al."Changes in Arctic moisture transport over the North Pacific associated with sea ice loss".Climate Dynamics 54.2020-01-02(2020).