DOI: 10.1007/s00382-017-3966-5
Scopus记录号: 2-s2.0-85032015960
论文题名: Possible effect of the Tibetan Plateau on the “upstream” climate over West Asia, North Africa, South Europe and the North Atlantic
作者: Lu M. ; Yang S. ; Li Z. ; He B. ; He S. ; Wang Z.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 51, 期: 4 起始页码: 1485
结束页码: 1498
语种: 英语
英文关键词: Atmospheric teleconnection
; Climate variations
; Heating and response
; Tibetan plateau
Scopus关键词: climate change
; Hadley cell
; heating
; intertropical convergence zone
; precipitation (climatology)
; regional climate
; Rossby wave
; teleconnection
; troposphere
; westerly
; Atlantic Ocean
; Atlantic Ocean (North)
; China
; North Africa
; Qinghai-Xizang Plateau
; Southern Europe
; West Asia
英文摘要: We conduct several experiments using a fully-coupled climate model to understand the role of Tibetan Plateau (TP) surface heating in the climate variations over West Asia, South Europe, North Africa, and the North Atlantic during summer. Emphasis has been placed on the physical processes and responsible mechanisms that involve the shift of the Hadley cell and the important features of rotational and divergent response of the atmosphere to the TP heating. The relative importance of the TP to the Asian continent is also analyzed. A heating of the TP surface leads to local increases in tropospheric temperature and the thickness of the air column due to the so-called air pumping effect. In the upper troposphere, the South Asian high intensifies and extends westward. To the west of TP, especially in West Asia, South Europe, North Africa, and the North Atlantic, distinguished Rossby wave responses to the TP heating occur with anomalous high pressure and uniform warming in the entire troposphere. Correspondingly, descending motions intensify and precipitation decreases. However, the tropical Sahel rainfall increases because of a northward shift of the Atlantic intertropical convergence zone and the anomalous westerlies due to the weakening of the southeastern portion of the Atlantic subtropical high. These effects of the TP heating explain a remarkable portion of the effects by the Asian continent heating. In addition, the impacts of different magnitudes of TP surface heating are also discussed. © 2017, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109163
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: School of Atmospheric Sciences, Sun Yat-sen University, 135 West Xingang Road, Guangzhou, 510275, China; Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-sen University, Guangzhou, China; Institute of Earth Climate and Environment System, Sun Yat-sen University, Guangzhou, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Lu M.,Yang S.,Li Z.,et al. Possible effect of the Tibetan Plateau on the “upstream” climate over West Asia, North Africa, South Europe and the North Atlantic[J]. Climate Dynamics,2018-01-01,51(4)