DOI: 10.1175/JCLI-D-12-00774.1
Scopus记录号: 2-s2.0-84888039614
论文题名: Dominant modes of wintertime upper-tropospheric temperature variations over Asia and links to surface climate
作者: Jiang X. ; Yang S. ; Li Y. ; Ke Z. ; Li J. ; Hu H.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 22 起始页码: 9043
结束页码: 9060
语种: 英语
Scopus关键词: Atmospheric circulation
; Circulation anomalies
; Climate variability
; Empirical Orthogonal Function
; Interannual variability
; Large-scale circulation
; Middle east jet streams
; Temperature variation
; Atmospheric pressure
; Climatology
; Troposphere
; Forecasting
; air temperature
; atmospheric circulation
; climate modeling
; climate prediction
; El Nino-Southern Oscillation
; hindcasting
; jet stream
; temperature anomaly
; troposphere
; weather forecasting
; winter
; China
; Korea
; Mongolia
; Qinghai-Xizang Plateau
英文摘要: In this study, the authors investigate the variations and predictability of wintertime upper-tropospheric temperature (UTT) over Asia, which are often linked to severe climate anomalies, and the associated features of large-scale circulation and surface climate. The ECMWF Interim Re-Analysis (ERA-Interim) and hindcast of the NCEP Climate Forecast System, version 2 (CFSv2), are mainly analyzed. The first empirical orthogonal function mode of UTT shows a dipole structure, with a strong positive center over southern China and a weak negative center over Mongolia. The second mode is featured by a monopole variation, with a positive center appearing from the northwestern Tibetan Plateau (TP) to Japan. The third mode exhibits a tripole pattern, with two positive centers over Pakistan and the Sea of Japan and a negative center over central Asia. The first mode is linked to El Niño-Southern Oscillation, accompanied by surface warming over the southeastern TP and deficient precipitation over southern China, the Korean Peninsula, and from equatorial East Africa to the east of the TP. The second mode is associated with circulation anomalies similar to those associated with the Arctic Oscillation, with significant warming over East Asia. The third mode features two wave trains and is linked to the Middle East jet stream, and is associated with excessive precipitation from the eastern TP to southern Japan. The CFSv2 can predict the first mode skillfully by several months in advance, but it shows little skill in predicting the second and third modes. © 2013 American Meteorological Society. 资助项目: NSFC, National Natural Science Foundation of China
; NOAA, National Oceanic and Atmospheric Administration
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51568
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Plateau Meteorology, China Meteorological Administration, Chengdu, China; Department of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China; National Climate Center, China Meteorological Administration, Beijing, China; National Key Laboratory of Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Jiang X.,Yang S.,Li Y.,et al. Dominant modes of wintertime upper-tropospheric temperature variations over Asia and links to surface climate[J]. Journal of Climate,2013-01-01,26(22)