DOI: 10.1002/joc.5472
论文题名: On the weakening relationship between the South China Sea summer monsoon onset and cross-equatorial flow after the late 1990s
作者: Hu P. ; Chen W. ; Huang R. ; Nath D.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 7 起始页码: 3202
结束页码: 3208
语种: 英语
英文关键词: cross-equatorial flow
; inter-decadal change
; sea surface temperature
; South China Sea summer monsoon onset
; western North Pacific
Scopus关键词: Atmospheric pressure
; Oceanography
; Storms
; Surface waters
; Cross-equatorial flow
; Interdecadal
; Sea surface temperature (SST)
; South China Sea summer monsoon
; Western North Pacific
; Atmospheric thermodynamics
; decadal variation
; El Nino-Southern Oscillation
; environmental disturbance
; intertropical convergence zone
; monsoon
; sea surface temperature
; summer
; tropical cyclone
; twentieth century
; Pacific Ocean
; Pacific Ocean (North)
; South China Sea
英文摘要: The weakening in the relationship between the South China Sea summer monsoon onset (SCSSMO) and the low-level cross-equatorial flow (CEF) in May is investigated using the ERA-Interim reanalysis data sets during 1979–2016. The SCSSMO–SCSCEF relationship has experienced a significant inter-decadal change, and the correlation coefficient becomes weaker after the late 1990s. The correlation has shifted from the significant negative value in the earlier decade to insignificant in the later decade. This inter-decadal change is robust under several sensitive tests and largely independent of the El Niño-Southern Oscillation signal. One possible explanation is the change in mechanisms driving the SCSSMO over the course of the two periods. Before the late 1990s, the northwards march of the intertropical convergence zone, which has a close relationship with the SCSCEF, is mainly responsible for the SCSSMO. After the late 1990s, warming of the western North Pacific favours more tropical cyclones and disturbances during May. The westwards movement of these tropical disturbances would affect the SCSSMO and help explain why the SCSSMO–SCSCEF relationship became weaker in the later decade. © 2018 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116883
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; College of Earth Sciences, University of Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Hu P.,Chen W.,Huang R.,et al. On the weakening relationship between the South China Sea summer monsoon onset and cross-equatorial flow after the late 1990s[J]. International Journal of Climatology,2018-01-01,38(7)