DOI: 10.1007/s00382-017-3625-x
Scopus记录号: 2-s2.0-85015715187
论文题名: Remote impact of North Atlantic sea surface temperature on rainfall in southwestern China during boreal spring
作者: Li G. ; Chen J. ; Wang X. ; Luo X. ; Yang D. ; Zhou W. ; Tan Y. ; Yan H.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 50, 期: 2018-01-02 起始页码: 541
结束页码: 553
语种: 英语
Scopus关键词: air-sea interaction
; atmospheric circulation
; climate variation
; cyclone
; rainfall
; sea surface temperature
; spring (hydrology)
; teleconnection
; Atlantic Ocean
; Atlantic Ocean (North)
; Bay of Bengal
; China
; Indian Ocean
; Qinghai-Xizang Plateau
英文摘要: As an important oceanic signal, the North Atlantic sea surface temperature (SST) affects not only the climate variability over East China and Northeast China but also can affect climate variability over southwestern China (SWC). Based on station rainfall data and reanalysis datasets, the present study investigates the relationship of North Atlantic SST with SWC rainfall during boreal spring for the period 1979–2016. The results show that there is a significant positive correlation between North Atlantic SST and SWC rainfall during boreal spring. The atmospheric circulation over southern Asia associated with North Atlantic SST is favorable for positive rainfall anomalies. Further analyses show that North Atlantic SST can induce a North Atlantic–western Russia–western Tibetan Plateau–SWC (NRTC) teleconnection wave train from upper level to low level. At low level, two anomalous anticyclones are found over the mid-high latitude of North Atlantic and the western Tibetan Plateau, and two anomalous cyclones are observed over the western Russia and Bay of Bengal (BOB), respectively. The NRTC teleconnection wave train plays a bridging role between the North Atlantic SST and SWC rainfall during boreal spring. Both the observational analysis and two numerical experiments suggest that the North Atlantic SST during boreal spring can induce an anomalous cyclone over BOB by the NRTC teleconnection pattern. The anomalous cyclone over BOB favors moisture transport to SWC, accompanying with significant anomalous ascending motion, and thus results in positive rainfall anomalies in SWC during boreal spring. © 2017, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109506
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Xichang Satellite Launch Center, Xichang, China; State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; College of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing, China; Guy Carpenter Asia-Pacific Climate Impact Centre, School of Energy and Environment, City University of Hong Kong, Hong Kong, China; Yunnan Climate Center, Kunming, China
Recommended Citation:
Li G.,Chen J.,Wang X.,et al. Remote impact of North Atlantic sea surface temperature on rainfall in southwestern China during boreal spring[J]. Climate Dynamics,2018-01-01,50(2018-01-02)