DOI: 10.1175/JCLI-D-12-00851.1
Scopus记录号: 2-s2.0-84886260003
论文题名: The possible influence of a nonconventional el niño on the severe autumn drought of 2009 in southwest china
作者: Zhang W. ; Jin F.-F. ; Zhao J.-X. ; Qi L. ; Ren H.-L.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 21 起始页码: 8392
结束页码: 8405
语种: 英语
Scopus关键词: Atmosphere-ocean interactions
; Atmospheric circulation
; Autumn rainfall
; Combined effect
; EL Nino
; Equatorial Pacific Ocean
; Principal factors
; Sea surface temperature anomalies
; Drought
; Oceanography
; Rain
; Storms
; Nickel
; air-sea interaction
; atmospheric circulation
; autumn
; drought
; El Nino
; rainfall
; sea surface temperature
; severe weather
; temperature anomaly
; China
; Pacific Ocean
; Pacific Ocean (Equatorial)
英文摘要: Asevere drought struck southwest China during autumn 2009, which had a huge impact on productivity and the lives of the affected population. A nonconventional El Nĩno, the so-called warm pool (WP) El Nĩno, was supposed to be a principal factor of this strong autumn drought. In sharp contrast to a conventional El Nĩno, in the 2009 WP El Nĩno year the maximum sea surface temperature (SST) anomalies are confined to the central equatorial Pacific Ocean. Moreover, this WP El Nĩno was characterized by the relatively farther westward location and the strongest intensity among the WP El Nĩno events in the past 60 years. Observations and modeling studies both indicate that the rainfall deficits over southwest China are significantly influenced by the combined effects of the location and intensity of the WP El Nĩno. That is, the drought over southwest China tends to be more severe when the warming SST anomalies associated with the WP El Nĩno are located farther westward and are stronger. Therefore, the strong autumn drought over southwest China in 2009 can be largely attributed to the concurrent distinctive WP El Nĩno, which generates a strongly anomalous cyclone over the west North Pacific and leads to a serious reduction in rainfall over southwest China. The influence of the Indian Ocean warming on autumn rainfall over southwest China was also examined but seems to have little contribution to this drought. © 2013 American Meteorological Society. 资助项目: NSFC, National Natural Science Foundation of China
; NSF, National Science Foundation
; NOAA, National Oceanic and Atmospheric Administration
; DOE, U.S. Department of Energy
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51537
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Meteorological Disaster of Ministry of Education, College of Atmospheric Sciences, Nanjing University of Information Science and Technology, Nanjing, China; Department of Meteorology, School of Ocean and Earth Science and Technology, University of Hawai'i at Mǎnoa, Honolulu, HI, United States
Recommended Citation:
Zhang W.,Jin F.-F.,Zhao J.-X.,et al. The possible influence of a nonconventional el niño on the severe autumn drought of 2009 in southwest china[J]. Journal of Climate,2013-01-01,26(21)