DOI: 10.1175/JCLI-D-12-00265.1
Scopus记录号: 2-s2.0-84877835915
论文题名: Weakened interannual variability in the tropical pacific ocean since 2000
作者: Hu Z.-Z. ; Kumar A. ; Ren H.-L. ; Wang H. ; L'heureux M. ; Jin F.-F.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 8 起始页码: 2601
结束页码: 2613
语种: 英语
Scopus关键词: Equatorial Pacific
; Inter-decadal shifts
; Interannual variability
; Sea surface temperature anomalies
; Tropical atmospheres
; Tropical Pacific ocean
; Walker circulation
; Zebiak-Cane model
; Atmospheric pressure
; Atmospheric temperature
; Climate change
; Stream flow
; Tropics
; air-sea interaction
; annual variation
; comparative study
; El Nino-Southern Oscillation
; sea surface temperature
; temperature anomaly
; thermocline
; Walker circulation
; wind stress
; Pacific Ocean
; Pacific Ocean (Equatorial)
; Pacific Ocean (Tropical)
英文摘要: An interdecadal shift in the variability and mean state of the tropical Pacific Ocean is investigated within the context of changes in El Niño-Southern Oscillation (ENSO). Compared with 1979-99, the interannual variability in the tropical Pacific was significantly weaker in 2000-11, and this shift can be seen by coherent changes in both the tropical atmosphere and ocean. For example, the equatorial thermocline tilt became steeper during 2000-11, which was consistent with positive (negative) sea surface temperature anomalies, increased (decreased) precipitation, and enhanced (suppressed) convection in the western (central and eastern) tropical Pacific, which reflected an intensification of the Walker circulation. The combination of a steeper thermocline slope with stronger surface trade winds is proposed to have hampered the eastward migration of the warm water along the equatorial Pacific. As a consequence, the variability of the warm water volume was reduced and thus ENSO amplitude also decreased. Sensitivity experiments with the Zebiak-Cane model confirm the link between thermocline slope, wind stress, and the amplitude of ENSO. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51882
Appears in Collections: 气候变化事实与影响
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作者单位: NOAA/NWS/NCEP/Climate Prediction Center, College Park, Maryland, United States; Department of Meteorology, University of Hawaii at Manoa, Honolulu, Hawaii, United States; Laboratory for Climate Studies, National Climate Center, China Meteorological Administration, Beijing, China; WYLE Science, Technology and Engineering Group, McLean, Virginia, United States
Recommended Citation:
Hu Z.-Z.,Kumar A.,Ren H.-L.,et al. Weakened interannual variability in the tropical pacific ocean since 2000[J]. Journal of Climate,2013-01-01,26(8)