Scopus记录号: 2-s2.0-85061041134
论文题名: The direct and ocean-mediated influence of Asian orography on tropical precipitation and cyclones
作者: Baldwin J.W. ; Vecchi G.A. ; Bordoni S.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2019
语种: 英语
英文关键词: Asia
; Atmosphere–ocean coupling
; Monsoon
; Orography
; Tropical cyclone
英文摘要: Prior global climate model (GCM) experiments have shown that the Tibetan Plateau and related orography play a significant role in enhancing the Indian Monsoon, particularly during its onset, and the East Asian monsoon. However, these experiments have been largely performed with atmosphere-only, lower-resolution GCMs that neglect the influence of atmosphere–ocean coupling, and do not resolve tropical cyclones (TCs). Here we explore the influence of Asian orography on tropical circulations in a Geophysical Fluid Dynamics Laboratory GCM at two different atmosphere/land resolutions (∼ 50 and 200 km), and with or without atmosphere–ocean coupling. Atmosphere–ocean coupling is found to play a significant role in the precipitation response due to the Asian orography, enhancing the precipitation increase over the Western North Pacific (hereafter WNP), and drying the Arabian Sea. In these same regions, the higher resolution model, which resolves TCs up to category 3, suggests that Asian orography has a significant influence on TCs, increasing TC frequency in the WNP, and decreasing it in the Arabian Sea. However, in contrast to precipitation, this TC response does not appear to be strongly affected by the atmosphere–ocean coupling. Connections between the direct atmospheric circulation response to Asian orography, ocean circulation changes, and these various effects on precipitation and tropical cyclones are analyzed and discussed. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature. 资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122555
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Princeton Environmental Institute, Princeton University, Guyot Hall, Princeton, NJ 08544-1003, United States; Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544, United States; Environmental Science and Engineering, California Institute of Technology, Mail Code 131-24, Pasadena, CA 91125-2300, United States
Recommended Citation:
Baldwin J.W.,Vecchi G.A.,Bordoni S.. The direct and ocean-mediated influence of Asian orography on tropical precipitation and cyclones[J]. Climate Dynamics,2019-01-01