DOI: 10.1175/JCLI-D-18-0356.1
Scopus记录号: 2-s2.0-85059612824
论文题名: Decadal transition of the leading mode of interannual moisture circulation over east Asia-western North Pacific: Bonding to different evolution of ENSO
作者: Li X. ; Wen Z. ; Chen D. ; Chen Z.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2019
卷: 32, 期: 2 起始页码: 289
结束页码: 308
语种: 英语
英文关键词: Air-sea interaction
; Climate variability
; ENSO
; Hydrologic cycle
; Moisture/moisture budget
Scopus关键词: Atmospheric pressure
; Budget control
; Mechanical waves
; Modulation
; Moisture
; Oceanography
; Surface waters
; Tropics
; Air sea interactions
; Climate variability
; ENSO
; Hydrologic cycles
; Moisture/moisture budgets
; Climatology
; air-sea interaction
; annual variation
; atmospheric circulation
; atmospheric moisture
; climate variation
; decadal variation
; El Nino-Southern Oscillation
; hydrological cycle
; sea surface temperature
; temperature anomaly
; Indian Ocean
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: The El Niño-Southern Oscillation (ENSO) cycle has a great impact on the summer moisture circulation over East Asia (EA) and the western North Pacific [WNP (EA-WNP)] on an interannual time scale, and its modulation is mainly embedded in the leading mode. In contrast to the stable influence of the mature phase of ENSO, the impact of synchronous eastern Pacific sea surface temperature anomalies (SSTAs) on summer moisture circulation is negligible during the 1970s-80s, while it intensifies after 1991. In response, the interannual variation ofmoisture circulation exhibits a muchmore widespread anticyclonic/cyclonic pattern over the subtropical WNP and a weaker counterpart to the north after 1991. Abnormal moisture moves farther northward with the enhancedmoisture convergence, and thus precipitation shifts from theYangtze River to the Huai River valley. The decadal shift in the modulation of ENSO on moisture circulation arises from a more rapid evolution of the bonding ENSO cycle and its stronger coupling with circulation over the Indian Ocean after 1991. The rapid development of cooling SSTAs over the central-eastern Pacific, andwarming SSTAs to the west over the eastern Indian Ocean-Maritime Continent (EIO-MC) in summer, stimulates abnormal descending motion over the western-central Pacific and ascending motion over the EIO-MC. The former excites an anticyclone over theWNP as a Rossby wave response, sustaining and intensifying theWNP anticyclone; the latter helps anchor the anticyclone over the tropical-subtropical WNP via an abnormal southwest-northeast vertical circulation between EIO-MC and WNP. © 2018 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117256
Appears in Collections: 气候变化与战略
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Recommended Citation:
Li X.,Wen Z.,Chen D.,et al. Decadal transition of the leading mode of interannual moisture circulation over east Asia-western North Pacific: Bonding to different evolution of ENSO[J]. Journal of Climate,2019-01-01,32(2)