DOI: 10.1002/jgrd.50802
论文题名: Effects of a semienclosed ocean on extratropical cyclogenesis: The dynamical processes around the Japan Sea on 23-25 January 2008
作者: Yamamoto M.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 18 起始页码: 10391
结束页码: 10404
语种: 英语
英文关键词: atmospheric bridge
; baroclinic wave
; extratropical cyclogenesis
; Japan Sea
Scopus关键词: Belt conveyors
; Atmospheric response
; Baroclinic waves
; Cooling/warming effects
; Cyclogenesis
; Extratropical cyclones
; Geopotential height anomalies
; Japan Sea
; Temperature anomaly
; Storms
; air temperature
; baroclinic wave
; cold air
; cooling
; cyclogenesis
; extratropical environment
; geopotential
; heat flux
; marine ecosystem
; wavelength
; Pacific Ocean
; Sea of Japan
英文摘要: Based on a case study of an extratropical cyclone that developed rapidly near Japan on 23-25 January 2008, this paper proposes a new type of atmospheric response to a surface warming/cooling anomaly in the semienclosed Japan Sea, which is approximately half a synoptic-scale baroclinic wavelength in size. The thermal effects of the Japan Sea during early cyclogenesis spread to the upper levels via an upward wind, when the trough of the baroclinic wave is located west of the Japan Sea. In the case of a relatively cold Japan Sea, the lower level air temperature decreases over the sea, and the baroclinic wave becomes weak around Japan in the early stage. As the cyclone progressively develops and travels east, the positive and negative geopotential height anomalies induced by the sea surface cooling increase over time in the lower level trough and the upper level ridge outside the Japan Sea, respectively. The temperature anomaly spreads to upper levels through the development of a warm conveyer belt. As the cyclone becomes fully developed, a geopotential height anomaly pattern similar to the west Pacific teleconnection forms as a result of the S-shaped trough-ridge structure in the middle and upper troposphere. The cooling/warming effect of the sea influences surface heat fluxes and precipitation in the Pacific region outside the Japan Sea via a synoptic-scale atmospheric bridge caused by the traveling and developing cyclone and cold air outbreak. Key Points Atmospheric responses to a semienclosed ocean in extratropical cyclogenesisFormation of short-term WP-like pattern forced by the warm/cool Japan SeaSynoptic-scale atmospheric bridge from the Japan Sea to Pacific via cyclogenesis ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63309
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Research Institute for Applied Mechanics, Kyushu University, 6-1 Kasuga-kouen, Kasuga 816-8580, Japan
Recommended Citation:
Yamamoto M.. Effects of a semienclosed ocean on extratropical cyclogenesis: The dynamical processes around the Japan Sea on 23-25 January 2008[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(18)