DOI: 10.1175/JCLI-D-17-0423.1
Scopus记录号: 2-s2.0-85047100719
论文题名: The interannual dominant covariation mode of boreal summer monsoon rainfall during 1979-2014
作者: Hao Y. ; Liu B. ; Zhu C. ; Ma S.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 11 起始页码: 4193
结束页码: 4213
语种: 英语
英文关键词: Interannual variability
; Monsoons
Scopus关键词: Atmospheric thermodynamics
; Climate change
; Oceanography
; Atmospheric circulation
; Interannual variability
; Interannual variation
; Monsoons
; Summer monsoon rainfall
; Summer precipitation
; Tropical Indian ocean
; Western North Pacific
; Rain
; annual variation
; atmosphere-ocean coupling
; atmospheric general circulation model
; covariance analysis
; El Nino-Southern Oscillation
; meridional circulation
; monsoon
; rainfall
; sea surface temperature
; summer
; temperature anomaly
; Far East
; India
; Indian Ocean
; Indian Ocean (Tropical)
; North Africa
; North America
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: The boreal summer monsoon (BSM), which includes the monsoons over India (IND), the western North Pacific (WNP), East Asia (EA), North America (NAM), and North Africa (NAF), shows prominent interannual variation (IAV) in summer precipitation and affects the areas with the largest populations in the world. In the present, the EOF analysis is used to extract the BSM dominant covariation mode during 1979-2014. This mode is featured by the out-of-phase rainfall IAV over the WNP compared with the other BSM members. The BSM covariation mode is closely associated with the upper- and lower-level coupled circulations, which are characterized by two anomalous zonal circulations over the tropical oceans coupled near the date line and an abnormal meridional cell over the WNP and EA regions, respectively. Furthermore, the strength of this mode depends on the phase relationship of rainfall IAV between the WNP and NAM monsoon regions, which is modulated by the seasonal evolution of ENSO events and the resultant SST anomalies (SSTAs) in the tropical Indian Ocean (TIO). The weaker mode is accompanied by the in-phase rainfall IAV between these two regions, along with the persisting ENSO events and stronger SSTAs in the TIO from winter to summer. In the years with fast-decaying ENSO events and the related weaker TIO SSTA, the out-of-phase rainfall IAV between the WNP and NAM region takes place to enhance this mode. A series of AGCM sensitivity experiments could reproduce the anomalies of atmospheric circulation related to the distinct seasonal evolution of ENSO events. © 2018 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111501
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, China; Institute of Climate System, Chinese Academy of Meteorological Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Hao Y.,Liu B.,Zhu C.,et al. The interannual dominant covariation mode of boreal summer monsoon rainfall during 1979-2014[J]. Journal of Climate,2018-01-01,31(11)