DOI: 10.1007/s00382-017-3686-x
Scopus记录号: 2-s2.0-85017441449
论文题名: Impact of the Himalayas on the Meiyu–Baiu migration
作者: Wu C.-H. ; Chou M.-D. ; Fong Y.-H.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 50, 期: 2018-03-04 起始页码: 1307
结束页码: 1319
语种: 英语
英文关键词: East Asian summer monsoon
; Himalayas
; South Asian high
; Western North Pacific high
Scopus关键词: atmospheric front
; climate modeling
; heating
; monsoon
; seasonal variation
; synoptic meteorology
; transport process
; wave propagation
; westerly
; Himalayas
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: The subseasonal migrations of the East Asian summer monsoon are nearly identical to that of the South Asian summer monsoon. In mid-May to mid-June (Phase 1), the South Asian westerly strengthens, the center of the South Asian high moves northwestward, and the East Asian frontal system coupled to and located north of the Western North Pacific (WNP) high moves northward, with all of these actions occurring rapidly. In mid-June to late July (Phase 2), the strength of the South Asian westerly reaches a maximum, the center of the South Asian high remains at approximately 30°N, and the northward propagation of the WNP high becomes stagnant. The speed of the northward movement of the WNP high in Phase 2 is only half the speed of that in Phase 1. By late June, the South Asian monsoon has reached northern India and been blocked by the Himalayas. This indicates that the Himalayas have an effect of constraining the speed of the northward movement of the South Asian high and, in turn, the WNP high. Climate model experiments further reveal that the near-stationary nature of the East Asian frontal system in Phase 2 is related to the blocking of the South Asian summer monsoon by the Himalayas. We suggest that the evolution of the WNP high is constrained by the evolution of the South Asian high, and the Meiyu–Baiu is connected to the South Asian summer monsoon through the impact of the South Asian monsoon heating on the upper tropospheric circulation. © 2017, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109437
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Research Center for Environmental Changes, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei, 115, Taiwan; Department of Atmospheric Sciences, National Central University, Chung-Li, Taiwan
Recommended Citation:
Wu C.-H.,Chou M.-D.,Fong Y.-H.. Impact of the Himalayas on the Meiyu–Baiu migration[J]. Climate Dynamics,2018-01-01,50(2018-03-04)