DOI: 10.1002/joc.5313
论文题名: Different influences on the tropical Pacific SST gradient from natural and anthropogenic forcing
作者: Ning L. ; Liu J. ; Wang Z. ; Bradley R.S.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 4 起始页码: 2015
结束页码: 2028
语种: 英语
英文关键词: anthropogenic forcing
; natural forcing
; tropical Pacific SST gradient
Scopus关键词: Greenhouse gases
; Heat flux
; Nickel
; Surface waters
; Tropics
; Anthropogenic forcing
; Eastern tropical pacific
; Greenhouse-gas forcing
; Natural forcing
; Numerical sensitivity
; Sea Surface Temperature gradients
; Short-wave radiation
; Surface wind anomalies
; Oceanography
; air-sea interaction
; anthropogenic effect
; greenhouse gas
; heat flux
; heat transfer
; Medieval Warm Period
; sea surface temperature
; solar radiation
; surface wind
; temperature gradient
; volcanic aerosol
; Pacific Ocean
; Pacific Ocean (Tropical)
英文摘要: The influences of natural forcings (i.e. solar radiation and volcanic aerosol) and anthropogenic forcings (i.e. greenhouse gases) on the tropical Pacific zonal sea-surface temperature (SST) gradient are investigated through numerical sensitivity experiments, forced by natural forcing, anthropogenic forcing, or full forcing (both natural and anthropogenic forcing) using the Community Earth System Model (CESM) over the past two millennia. Under full forcing, during the present warming period (PWP; 1901–1999), the Pacific SST shows a larger warming over the tropical Pacific region than the subtropical Pacific region. This pattern is composed of an El Niño-like SST gradient (due to the greenhouse gas forcing) and a La Niña-like SST gradient (due to natural forcing). Two sensitivity experiments, the PWP under greenhouse gas forcing and the medieval warming period (MWP; 751–1250) under natural forcing, were used to examine the mechanisms. The results showed that under the greenhouse gas forcing, the larger warming over the eastern tropical Pacific is induced by an increased surface net heat flux, which is mainly caused by short-wave radiation and long-wave radiation. Under natural forcing, a larger warming is induced over the western tropical Pacific by changes in the ocean vertical heat transportation, caused by surface wind anomalies. © 2017 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117061
Appears in Collections: 气候减缓与适应
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作者单位: Key Laboratory of Virtual Geographic Environment, Ministry of Education, State Key Laboratory of Geographical Environment Evolution, Jiangsu Provincial Cultivation Base, School of Geographical Science, Nanjing Normal University, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing Normal University, Nanjing, China; Climate System Research Center, Department of Geosciences, University of Massachusetts, Amherst, MA, United States
Recommended Citation:
Ning L.,Liu J.,Wang Z.,et al. Different influences on the tropical Pacific SST gradient from natural and anthropogenic forcing[J]. International Journal of Climatology,2018-01-01,38(4)