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DOI	10.1007/s00382-019-04993-w
	How can CMIP5 AGCMs’ resolution influence precipitation in mountain areas: the Hengduan Mountains?
	Tao W.; Huang G.; Lau W.K.M.; Dong D.; Wang P.; Wen G.
发表日期	2020
ISSN	0930-7575
起始页码	159
结束页码	172
卷号	54 期号:2020-01-02
英文摘要	The precipitation over the Hengduan Mountains (HMs) during rainy seasons is investigated based on observations, reanalysis datasets, and 28 atmospheric general circulation models (AGCMs) from Coupled Model Intercomparison Project phase 5 (CMIP5). Most CMIP5 AGCMs generally capture two observed precipitation centers over the southwestern HMs and on the west side of Sichuan basin (WSSB), but their location, range, and magnitude vary with models. As the horizontal resolution increases, the details of simulated precipitation pattern are improved and closer to observation and reanalysis, as well as the increasing magnitude of precipitation over the southwestern HMs. However, the simulated precipitation on the WSSB is overestimated regardless of resolution. Mechanisms involved in resolution affecting precipitation pattern and biases of precipitation on the WSSB are explored. Representation of topography in AGCMs influences orographic effect, which contributes to simulations of both horizontal and vertical moisture flux convergence and further precipitation over the HMs. The biases of WSSB precipitation between reanalysis and AGCMs are attributed to the discrepancy in the vertical distribution of upward motions. The simulated upward motions can reach a higher level than reanalysis, and a spurious center of upward motions develops at 400 hPa due to the overestimation of circulation-precipitation feedback in AGCMs. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Circulation-precipitation feedback; CMIP5; Model resolution; Orographic effect; Rainy-season precipitation; The Hengduan Mountains; Topography
语种	英语
scopus关键词	atmospheric general circulation model; CMIP; image resolution; mountain environment; orographic effect; precipitation assessment; rainfall; topography; China; Hengduan Mountains
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145775
作者单位	State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD 20740, United States; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; Joint Center for Global Change Studies, Beijing, 100875, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Guangzhou Institute of Tropical and Marine Meteorology, China Meteorological Administration, Guangzhou, 510080, China
推荐引用方式 GB/T 7714	Tao W.,Huang G.,Lau W.K.M.,等. How can CMIP5 AGCMs’ resolution influence precipitation in mountain areas: the Hengduan Mountains?[J],2020,54(2020-01-02).
APA	Tao W.,Huang G.,Lau W.K.M.,Dong D.,Wang P.,&Wen G..(2020).How can CMIP5 AGCMs’ resolution influence precipitation in mountain areas: the Hengduan Mountains?.Climate Dynamics,54(2020-01-02).
MLA	Tao W.,et al."How can CMIP5 AGCMs’ resolution influence precipitation in mountain areas: the Hengduan Mountains?".Climate Dynamics 54.2020-01-02(2020).