DOI: 10.1175/JCLI-D-14-00569.1
Scopus记录号: 2-s2.0-84944044588
论文题名: Recent intensification of the western pacific subtropical high associated with the east Asian summer monsoon
作者: Matsumura S. ; Sugimoto S. ; Sato T.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 7 起始页码: 2873
结束页码: 2883
语种: 英语
Scopus关键词: Atmospheric pressure
; Atmospheric thermodynamics
; Climate models
; Climatology
; Tropics
; Wind effects
; Anticyclones
; Atmospheric circulation
; Climate variability
; Convective activity
; East Asian summer monsoon
; North Pacific Ocean
; Observational analysis
; Regional climate modeling
; Climate change
; anticyclone
; atmospheric circulation
; climate change
; climate modeling
; climate variation
; monsoon
; regional climate
; summer
; Far East
; Pacific Ocean
; Pacific Ocean (East)
; Pacific Ocean (North)
; Pacific Ocean (West)
英文摘要: The summer western Pacific subtropical high (WPSH) has intensified during the past three decades. However, the underlying mechanism is not yet well understood. Here, it is shown that baiu rainband activity in midsummer, which is part of the East Asian summer monsoon, plays an important role in recent intensification in the WPSH along the baiu rainband. In contrast with the WPSH, the summer Okhotsk high, which is located to the north of the baiu rainband, has weakened during the past three decades. The north-south contrasting changes between the two highs reflect a response to northward-moved and enhanced baiu heating, which intensifies the upper-tropospheric ridge, resulting in the baroclinic intensification of the WPSH. Regional climate model experiments also support the observational analysis. Therefore, baiu convective activity in midsummer can act as a major driver for the WPSH intensification. The results here suggest that the mechanism intensifying the summer North Pacific subtropical high clearly differs between the western and eastern Pacific. © 2015 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50765
Appears in Collections: 气候变化事实与影响
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作者单位: Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan; Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, Tokyo, Japan
Recommended Citation:
Matsumura S.,Sugimoto S.,Sato T.. Recent intensification of the western pacific subtropical high associated with the east Asian summer monsoon[J]. Journal of Climate,2015-01-01,28(7)