DOI: 10.1002/joc.5667
论文题名: A new perspective of intensified impact of El Niño-Southern Oscillation Modoki on tropical cyclogenesis over the western North Pacific around 1990s
作者: Cao X. ; Wu R. ; Xiao X.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 11 起始页码: 4262
结束页码: 4275
语种: 英语
英文关键词: ENSO Modoki
; intensified impact
; tropical cyclone genesis
; western North Pacific
Scopus关键词: Atmospheric pressure
; Climatology
; Hurricanes
; Storms
; Surface waters
; Tropics
; Atmospheric circulation
; ENSO Modoki
; Intensified impact
; Sea surface temperature anomalies
; Tropical cyclogenesis
; Tropical cyclone
; Tropical Indian Ocean SST
; Western North Pacific
; Oceanography
; air-sea interaction
; cyclogenesis
; decadal variation
; El Nino-Southern Oscillation
; sea surface temperature
; teleconnection
; tropical cyclone
; wind profile
; Indian Ocean
; Indian Ocean (Tropical)
; Pacific Ocean
; Pacific Ocean (Central)
; Pacific Ocean (North)
; Pacific Ocean (South)
英文摘要: Previous study detected an intensified impact of the El Niño-Southern Oscillation (ENSO) Modoki sea surface temperature (SST) anomalies on the tropical cyclone (TC) activity over the western North Pacific (WNP) after the early 1990s and attributed it to an expansion in areal coverage of the equatorial central Pacific (ECP) SST anomalies. This study identifies the contribution of SST anomalies in several other regions to this inter-decadal change in the relationship between ENSO Modoki SST and the WNP TC genesis. Before the early 1990s, the positive ECP SST anomalies induce an anomalous lower-level cyclone and consequently an increase in the TC genesis frequency over the southern part of the WNP, and the positive ECP and tropical Indian Ocean SST anomalies together induce an anomalous lower-level anticyclone and accordingly a decrease in the TC genesis frequency over the northern part of the WNP. As such, the relationship between the ECP SST and the WNP TC genesis frequency is weak. After the early 1990s, the positive ECP SST anomalies with a large areal coverage induce a large anomalous lower-level cyclone covering most of the WNP and thus an increase in the TC genesis frequency over the WNP. Meantime, the tropical northern Atlantic and western South Pacific SST anomalies during spring enhance the succeeding summer–autumn WNP atmospheric circulation response to the ECP SST anomalies through an Atlantic–Pacific teleconnection and a wind-evaporation positive feedback, respectively. This strengthens the relationship between the ECP SST and the WNP TC genesis frequency. © 2018 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116799
Appears in Collections: 气候减缓与适应
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作者单位: Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Longquanyi District Meteorological Service of Chengdu, Chengdu, China
Recommended Citation:
Cao X.,Wu R.,Xiao X.. A new perspective of intensified impact of El Niño-Southern Oscillation Modoki on tropical cyclogenesis over the western North Pacific around 1990s[J]. International Journal of Climatology,2018-01-01,38(11)