Weak Stratospheric Polar Vortex Events Modulated by the Arctic Sea-Ice Loss

doi:10.1029/2018JD029222

GSTDTAP > 气候变化

DOI	10.1029/2018JD029222
	Weak Stratospheric Polar Vortex Events Modulated by the Arctic Sea-Ice Loss
	Hoshi, Kazuhira 1; Ukita, Jinro 2; Honda, Meiji 2; Nakamura, Tetsu 3; Yamazaki, Koji 3; Miyoshi, Yasunobu 4; Jaiser, Ralf 5
	2019-01-27
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
EISSN	2169-8996
出版年	2019
卷号	124 期号:2 页码:858-869
文章类型	Article
语种	英语
国家	Japan; Germany
英文摘要	We characterize the differences in the upward planetary-scale wave propagation during observed weak polar vortex (WPV) events between heavy- and light-sea-ice years in the Barents-Kara Sea based on a composite analysis for the period of 1979-2015. Upward wave propagation during WPV events in heavy-ice years is dominated by the wavenumber 1 component. In contrast, WPV events occurring in light-ice years are characterized by stronger wavenumber 2 propagation, which is caused by the tropospheric wavenumber 2 response to sea-ice reduction in the Barents-Kara Sea. The above observed features are supported by an Atmospheric General Circulation Model experiment. Thus, under present climate conditions, Arctic sea-ice loss is a possible factor modulating the wave propagation during the WPV events. We also find that the WPV events in light-ice years have stronger stratosphere-troposphere coupling, followed by colder midlatitude surface conditions particularly over Eurasia.
英文关键词	sudden stratospheric warming stratosphere-troposphere coupling Arctic sea ice loss Barents-Kara Sea planetary waves
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000458845300024
WOS关键词	SUDDEN WARMINGS ; PART I ; VARIABILITY ; CIRCULATION ; BLOCKING ; PATHWAY ; ENSO ; FLUX
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/32952
专题	气候变化
作者单位	1.Niigata Univ, Grad Sch Sci & Technol, Niigata, Japan; 2.Niigata Univ, Fac Sci, Niigata, Japan; 3.Hokkaido Univ, Fac Environm Earth Sci, Sapporo, Hokkaido, Japan; 4.Kyushu Univ, Dept Earth & Planetary Sci, Fukuoka, Fukuoka, Japan; 5.Helmholtz Zentrum Polar & Meeresforsch, Alfred Wegener Inst, Potsdam, Germany
推荐引用方式 GB/T 7714	Hoshi, Kazuhira,Ukita, Jinro,Honda, Meiji,et al. Weak Stratospheric Polar Vortex Events Modulated by the Arctic Sea-Ice Loss[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(2):858-869.
APA	Hoshi, Kazuhira.,Ukita, Jinro.,Honda, Meiji.,Nakamura, Tetsu.,Yamazaki, Koji.,...&Jaiser, Ralf.(2019).Weak Stratospheric Polar Vortex Events Modulated by the Arctic Sea-Ice Loss.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(2),858-869.
MLA	Hoshi, Kazuhira,et al."Weak Stratospheric Polar Vortex Events Modulated by the Arctic Sea-Ice Loss".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.2(2019):858-869.