DOI: 10.1175/JCLI-D-11-00739.1
Scopus记录号: 2-s2.0-84871752150
论文题名: Influences of ENSO teleconnection on the persistence of sea surface temperature in the tropical Indian Ocean
作者: Ding R. ; Jianping L.I.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 23 起始页码: 8177
结束页码: 8195
语种: 英语
Scopus关键词: Atmospheric circulation
; ENSO
; Indian ocean
; Indian ocean dipoles
; Sea surface temperature (SST)
; Sea surface temperature anomalies
; Seasonal cycle
; Sign reversal
; South China sea
; Southeastern tropical indian oceans
; Surface winds
; Teleconnections
; TiO
; Tropical Indian ocean
; Climatology
; Nickel compounds
; Oceanography
; Timing devices
; Atmospheric temperature
; atmospheric circulation
; El Nino-Southern Oscillation
; sea surface temperature
; surface wind
; teleconnection
; Indian Ocean
; Indian Ocean (Tropical)
; Pacific Ocean
; South China Sea
英文摘要: This study confirms a weak spring persistence barrier (SPB) of sea surface temperature anomalies (SSTAs) in the western tropical Indian Ocean (WIO), a strong fall persistence barrier (FPB) in the South China Sea (SCS), and the strongest winter persistence barrier (WPB) in the southeastern tropical Indian Ocean (SEIO). During El Niño events, a less abrupt sign reversal of SSTAs occurs in the WIO during spring, an abrupt reversal occurs in the SCS during fall, and the most abrupt reversal occurs in the SEIO during winter. The sign reversal of SSTA implies a rapid decrease in SSTA persistence, which is favorable for the occurrence of a persistence barrier. The present results indicate that a more abrupt reversal of SSTA sign generally corresponds to a more prominent persistence barrier. El Niño-induced changes in atmospheric circulation result in reduced evaporation and suppressed convection. This in turn leads to the warming over much of the TIO basin, which is an important mechanism for the abrupt switch in SSTA, from negative to positive, in thenorthern SCS and SEIO. The seasonal cycle of the prevailing surface winds has a strong influence on the timing of the persistence barriers in the TIO. The Indian Ocean dipole (IOD) alone can cause a weak WPB in the SEIO. El Niño events co-occurring with positive IOD further strengthen the SEIO WPB. The SEIOWPBappears to be more strongly influenced byENSOthan by the IOD. In contrast, theWIOSPB and the SCS FPB are relatively independent of the IOD. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52116
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Numerical Modeling for Atmospheric Sciences, Geophysical Fluid Dynamics (LASG) and Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Ding R.,Jianping L.I.. Influences of ENSO teleconnection on the persistence of sea surface temperature in the tropical Indian Ocean[J]. Journal of Climate,2012-01-01,25(23)