DOI: 10.1002/jgrd.50264
论文题名: Impacts of ENSO on autumn rainfall over Yellow River loop valley in observation: Possible mechanism and stability
作者: Li C. ; Zeng G.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 8 起始页码: 3110
结束页码: 3119
语种: 英语
英文关键词: autumn rainfall
; ENSO
; mechanism
; stability
Scopus关键词: Agriculture
; Atmospheric pressure
; Atmospheric temperature
; Climate change
; Convergence of numerical methods
; Mechanisms
; Ocean currents
; Agricultural productions
; Atmospheric circulation
; Atmospheric response
; Autumn rainfall
; ENSO
; Possible mechanisms
; Rainfall variability
; Sea surface temperature (SST)
; Rain
; agricultural production
; El Nino-Southern Oscillation
; rainfall
; Rossby wave
; sea surface temperature
; China
英文摘要: The Yellow River loop valley (YRLV) is one of major agricultural production zones in many Chinese dynasties. Predicting rainfall variability in the YRLV is important for the society and the economy. This study demonstrates impacts of El Niño-Southern Oscillation (ENSO) on autumn rainfall in the YRLV based on statistical analyses of instrumental rainfall in China and reanalyzed SST and atmospheric data. Results indicate that the autumn rainfall anomaly in the YRLV may be partially controlled by the ENSO-like sea surface temperature (SST) pattern. The YRLV rainfall is below normal (above normal) in the El Niño (La Niña) developing years. This impact is mediated by an atmospheric response to the ENSO-like SST anomaly forcing via a westward Rossby wave. Furthermore, Niño3.4 index may be used as a factor for autumn rainfall in the YRLV region with a lead of 4-5 months. However, the relationship between the autumn YRLV rainfall and ENSO does not persist and has gone through decadal weakening since the end of 1980s via a decadal response of atmospheric circulation to ENSO. The decadal change of the relationship between the autumn YRLV rainfall and ENSO may be modulated by climate decadal shifts. ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63813
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Physical Oceanography Laboratory, Universities of Shandong, Ocean University of China, Qingdao 266100, China; Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science and Technology, Nanjing, China
Recommended Citation:
Li C.,Zeng G.. Impacts of ENSO on autumn rainfall over Yellow River loop valley in observation: Possible mechanism and stability[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(8)