DOI: 10.1002/grl.50697
论文题名: Second peak in the far eastern Pacific sea surface temperature anomaly following strong El Niño events
作者: Kim W. ; Cai W.
刊名: Geophysical Research Letters
ISSN: 0094-8598
EISSN: 1944-8329
出版年: 2013
卷: 40, 期: 17 起始页码: 4751
结束页码: 4755
语种: 英语
英文关键词: eastern Pacific SST
; strong El Niño
; thermocline feedback
; zonal SPCZ
Scopus关键词: Atmosphere-ocean interactions
; Eastern equatorial Pacific
; Eastern pacific
; Latent heat release
; Sea surface temperature anomalies
; Short-wave radiation
; South pacific convergence zones
; zonal SPCZ
; Atmospheric temperature
; Stream flow
; Wind stress
; Oceanography
; convergence
; El Nino
; oceanic circulation
; sea surface temperature
; shortwave radiation
; temperature anomaly
; thermocline
; upwelling
; westerly
; wind stress
; Pacific Ocean
; Pacific Ocean (East)
; Pacific Ocean (Equatorial)
; Pacific Ocean (South)
英文摘要: The eastern Pacific sea surface temperature anomaly (SSTa) associated with El Niño usually peaks in December, January, and February, and decays in the ensuing months; sometimes, however, after a strong El Niño, a second peak in SSTa is observed in the far eastern equatorial Pacific. It is found that an enhanced westerly wind stress anomaly over the equatorial Pacific basin, usually associated with a meridional swing of South Pacific Convergence Zone (SPCZ), precedes the occurrence of the second peak. As the equatorial thermocline slope balances with the zonally integrated zonal-wind stress, the westerly wind stress anomaly induces deepened thermocline and suppresses upwelling in the eastern Pacific for the double-peak cases. On the other hand, enhanced latent heat release and reduced shortwave radiation cause a pause in warming between the two peaks. As a result, a strong El Niño, usually accompanied by a zonal SPCZ, exhibits distinct double-peak characteristics. Key Points There is a second peak after strong El Nino The second peak is generated by anomalous ocean circulation There exists a pause between the peaks due to atmosphere-ocean interaction ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84883566422&doi=10.1002%2fgrl.50697&partnerID=40&md5=1cb14074d0a734a6a77c6818799b2f19
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5862
Appears in Collections: 气候减缓与适应
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作者单位: CSIRO Marine and Atmospheric Research, Aspendale, VIC 3195, Australia
Recommended Citation:
Kim W.,Cai W.. Second peak in the far eastern Pacific sea surface temperature anomaly following strong El Niño events[J]. Geophysical Research Letters,2013-01-01,40(17).