DOI: 10.1002/2013GL059137
论文题名: Springtime ENSO phase evolution and its relation to rainfall in the continental U.S.
作者: Lee S.-K. ; Mapes B.E. ; Wang C. ; Enfield D.B. ; Weaver S.J.
刊名: Geophysical Research Letters
ISSN: 0094-10309
EISSN: 1944-10040
出版年: 2014
卷: 41, 期: 5 起始页码: 1673
结束页码: 1680
语种: 英语
英文关键词: ENSO evolution in spring
; ENSO teleconnection
; U.S. rainfall in spring
Scopus关键词: Atmospheric pressure
; Coastal zones
; Composite analysis
; Observational data
; Phase evolutions
; Rainfall anomaly
; Rainfall variability
; Sea surface temperature anomalies
; Significant patterns
; Teleconnections
; Rain
; El Nino-Southern Oscillation
; jet stream
; rainfall
; sea surface temperature
; spring (season)
; teleconnection
; temperature anomaly
; Atlantic Ocean
; California
; Gulf of Mexico
; Ohio River
; Ohio Valley [California]
; Pacific Ocean
; Pacific Ocean (Tropical)
; United States
英文摘要: Springtime El Niño-Southern Oscillation (ENSO) phase evolution and associated U.S. rainfall variability are explored by performing composite analysis of observational data. Although the tropical Pacific ENSO sea surface temperature anomalies are weaker and less coherent in boreal spring compared to those in winter, there are unique and significant patterns of U.S. rainfall anomalies frequently appearing during the onset and decay phases of ENSO. In early spring of a decaying El Niño, the atmospheric jet stream and associated storm track shift southward, causing more frequent wet conditions across the southern U.S. and dry conditions in a belt south and east of the Ohio River. In late spring of a developing El Niño, the synoptic activity over the U.S. reduces overall and the southwesterly low-level winds that carry moist air from the Gulf of Mexico to the U.S. shift westward, causing a similar dipole of rainfall anomalies between the southern U.S. and the Ohio Valley. Key Points Springtime ENSO phase evolution and its relation to U.S. rainfall is explored Coherent springtime ENSO SST anomalies exist in the central tropical Pacific Significant patterns of U.S. rainfall anomalies covary with ENSO phase in spring ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894721797&doi=10.1002%2f2013GL059137&partnerID=40&md5=6db99ffb544b9df6e6efd5e0f94d4b5a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7573
Appears in Collections: 气候减缓与适应
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作者单位: Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami FL, United States
Recommended Citation:
Lee S.-K.,Mapes B.E.,Wang C.,et al. Springtime ENSO phase evolution and its relation to rainfall in the continental U.S.[J]. Geophysical Research Letters,2014-01-01,41(5).