DOI: 10.1175/JCLI-D-11-00743.1
Scopus记录号: 2-s2.0-84872964317
论文题名: Impacts of interhemispheric asymmetric thermal forcing on tropical pacific climate: Surface air-sea coupling and subduction
作者: Li C. ; Wu L. ; Xie S.-P.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 2 起始页码: 575
结束页码: 582
语种: 英语
Scopus关键词: Air-sea coupling
; Cold waters
; Coupled general circulation models
; Equatorial Pacific
; Extratropical
; Extratropical warming
; Modeling studies
; Paleoclimates
; Sea Surface Temperature gradients
; Southern Hemisphere
; Subtropical cells
; Surface heat fluxes
; Thermal forcing
; Atmospheric temperature
; Climate change
; Stream flow
; Tropics
; air-sea interaction
; atmosphere-ocean coupling
; atmospheric circulation
; climate change
; climate forcing
; paleoclimate
; sea surface temperature
; Southern Hemisphere
; thermocline
; Pacific Ocean
; Pacific Ocean (Equatorial)
; Pacific Ocean (South)
; Pacific Ocean (Tropical)
英文摘要: Paleoclimate observations and modeling studies suggest that extratropical climate change affects the tropical Pacific. A global coupled general circulation model is used to investigate the equatorial Pacific response to extratropical surface heat flux forcing that is downward (upward) poleward of 408N (S). The equatorial response consists of two distinct stages: the zonal sea surface temperature (SST) gradient strengthens for the first two to three decades and then weakens afterward. In the first stage, fast surface air-sea coupling feedback mechanism communicates the extratropical warming (cooling) from the North (South) Pacific toward the equator. The second stage is characterized by a basinwide shoaling of the tropical Pacific thermocline as the subtropical cell (STC) advects cold water from the South Pacific along the thermocline. This preference of Southern Hemisphere anomalies is due to the meridional asymmetry in the mean circulation: the interior pathway for STC is open south but partially blocked north of the equator. Paleoclimate implications are discussed. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52086
Appears in Collections: 气候变化事实与影响
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作者单位: Physical Oceanography Laboratory and Ocean, Atmosphere Interaction and Climate Laboratory, Ocean University of China, Qingdao, China; International Pacific Research Center, Department of Meteorology, University of Hawaii at Manoa, Honolulu, HI, United States
Recommended Citation:
Li C.,Wu L.,Xie S.-P.. Impacts of interhemispheric asymmetric thermal forcing on tropical pacific climate: Surface air-sea coupling and subduction[J]. Journal of Climate,2013-01-01,26(2)