气候变化领域集成服务门户(CCPortal): Study of the formation of the Arctic cell associated with the two-wave middle-high latitude circulation

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DOI	10.1016/j.atmosres.2021.105616
	Study of the formation of the Arctic cell associated with the two-wave middle-high latitude circulation
	Liang Z.; Gao S.
发表日期	2021
ISSN	0169-8095
卷号	258
英文摘要	The formation of the Arctic cell associated with the two-wave middle-high latitude circulation, which is a major atmospheric circulation common to the three-cell and four-cell mean meridional circulations in the Northern Hemisphere, is analyzed using a long period of reanalysis data. In the context of the two-wave middle-high latitude circulation, when the high near the Arctic region from 120°E to 80°W (AH120E80W) weakens and withdraws eastward and the low near the Arctic region from 80°W to 120°E (AL80W120E) strengthens and expands northeastward, the Arctic tends to be controlled by obvious low pressure and associated upward motion, leading to the formation of the Arctic cell. The eastward withdrawal of the AH120E80W is attributed to an eastward retreat of the North Pacific Low, because it promotes the strong anticyclonic wind shear associated with the maintenance of the AH120E80W to migrate eastward. The eastward retreat of the North Pacific Low is induced by the decrease in the width of the East Asian Trough, which results from the response of the high terrain in Central Asia to the weakening of middle-latitude westerly winds caused by a northward shift of the Azores High. On the other hand, the eastward withdrawal of the AH120E80W results in the decay of the Arctic high, causing the winds near the Arctic to change from easterly to westerly. At the same time, the northward shift of the Azores High promotes the strong Icelandic Low to expand poleward. The combination of the Arctic westerly winds and the poleward expansion of the strong Icelandic Low leads to the northeastward expansion of the AL80W120E. © 2021 The Author(s)
英文关键词	Arctic cell; Formation; Two-wave middle-high latitude circulation
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236722
作者单位	State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, 100081, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China; Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100290, China
推荐引用方式 GB/T 7714	Liang Z.,Gao S.. Study of the formation of the Arctic cell associated with the two-wave middle-high latitude circulation[J],2021,258.
APA	Liang Z.,&Gao S..(2021).Study of the formation of the Arctic cell associated with the two-wave middle-high latitude circulation.Atmospheric Research,258.
MLA	Liang Z.,et al."Study of the formation of the Arctic cell associated with the two-wave middle-high latitude circulation".Atmospheric Research 258(2021).