DOI: 10.1002/joc.5289
论文题名: Year-to-year variability of surface air temperature over China in winter
作者: Xiao D. ; Zuo Z. ; Zhang R. ; Zhang X. ; He Q.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 4 起始页码: 1692
结束页码: 1705
语种: 英语
英文关键词: China
; surface air temperature
; winter
; year-to-year variability
Scopus关键词: Atmospheric temperature
; Fighter aircraft
; Sea ice
; Snow
; Surface waters
; Anticyclonic circulation
; Atmospheric circulation anomaly
; China
; Quasi-biennial oscillation
; Sea surface temperature (SST)
; Surface air temperatures
; Winter
; Year-to-year variability
; Oceanography
; air temperature
; anticyclone
; Arctic Oscillation
; atmospheric circulation
; Indian Ocean Dipole
; quasi-biennial oscillation
; sea ice
; sea surface temperature
; seasonal variation
; snow cover
; surface temperature
; troposphere
; winter
; China
; Eurasia
; Indian Ocean
; Pacific Ocean
; Pacific Ocean (Central)
; Pacific Ocean (North)
; Pacific Ocean (Tropical)
; Qinghai-Xizang Plateau
; Sea of Okhotsk
; Siberia
英文摘要: In this study, the year-to-year variability of surface air temperature (SAT) over China in winter was investigated during 1961–2014. The results indicate that the year-to-year SAT variability can explain more than 30% of the SAT variance over most parts of China, with up to 60% variance over southern China, northeastern China and northwestern China. The leading pattern of year-to-year SAT exhibits homogeneous variability over most parts of China, except in small areas over the Tibetan Plateau and southwestern China. The circulation over the northern Pacific is a key factor of this homogeneous variability pattern. An anomalous anticyclonic circulation and weakening midlatitude westerly jet in the middle and high troposphere over the northern Pacific are associated with the homogeneous warmth over China. The second pattern shows a south–north dipole, with variability in northeastern China opposite to that south of 25°N in China and over the Tibetan Plateau. The south–north dipole pattern is part of a global year-to-year SAT anomaly pattern because it exhibits a significant relationship with the year-to-year SAT over large parts north of 50°N over the Eurasian landmass. The north-cold/south-warm pattern is accompanied by a significant weakening of the Arctic Oscillation. In comparison, the atmospheric circulation anomalies associated with the homogeneous variability pattern are much weaker than those with the south–north dipole pattern. The anomalous Indian Ocean dipole in the previous autumn and the snow cover around China in November are the two key causes of the homogeneous variability pattern. Many factors, such as the tropical central Pacific sea surface temperature (SST), stratospheric quasi-biennial oscillation (QBO), Okhotsk sea ice and western Siberia snow cover, can significantly influence the south–north dipole pattern. Compared to the tropical Pacific SST, the impact of the Indian Ocean SST on the winter SAT over China is much more important. © 2017 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117075
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, China; Institute of Atmospheric Sciences, Fudan University, Shanghai, China; School of Mathematical Sciences, University of Science and Technology of China, Hefei, China; Earth System Modeling Center and Climate Dynamics Research Center, Nanjing University of Information Science & Technology, China
Recommended Citation:
Xiao D.,Zuo Z.,Zhang R.,et al. Year-to-year variability of surface air temperature over China in winter[J]. International Journal of Climatology,2018-01-01,38(4)