DOI: 10.1002/joc.5465
论文题名: Origin of early-spring central Pacific warming as the 1982–1983 El Niño precursor
作者: Kim J.-W. ; An S.-I.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 6 起始页码: 2899
结束页码: 2906
语种: 英语
英文关键词: 1982–1983 extreme El Niño event
; early-spring central Pacific warming
; El Niño precursor
; thermodynamical process
Scopus关键词: Climatology
; Earth atmosphere
; Dynamical process
; Early-spring central Pacific warming
; Eastern pacific
; Evaporative cooling
; Extreme events
; O precursors
; Thermodynamical process
; Evaporative cooling systems
; air-sea interaction
; El Nino
; equatorial dynamics
; extreme event
; sea surface temperature
; solar radiation
; spring (season)
; temperature anomaly
; thermodynamics
; warming
; Pacific Ocean
; Pacific Ocean (Central)
; Pacific Ocean (East)
英文摘要: The extreme El Niño events, such as those which occurred in 1982–1983, 1997–1998, and 2015–2016, exerted devastating impacts in many parts of the globe. Hence, it is crucial to understand the precursors of such extreme events. Nevertheless, each El Niño event has its own characteristics even in the initiation. Here, we show that the development of early-spring equatorial central Pacific warming forced by the increased solar radiation due to a suppressed convection was a crucial factor in developing the 1982–1983 extreme El Niño event. The central Pacific warming anomalies in the spring of 1982 were induced by atmospheric subsidence connected to the northern subtropical Pacific convection, subsequently reinforced by a reduced evaporative cooling via westerly anomalies. On the other hand, springtime warming anomalies over the equatorial central and eastern Pacific regions during other extreme El Niño events were induced mainly by oceanic dynamical processes. © 2018 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116907
Appears in Collections: 气候减缓与适应
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作者单位: Department of Atmospheric Sciences, Yonsei University, Seoul, South Korea
Recommended Citation:
Kim J.-W.,An S.-I.. Origin of early-spring central Pacific warming as the 1982–1983 El Niño precursor[J]. International Journal of Climatology,2018-01-01,38(6)