globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-015-2714-y
Scopus记录号: 2-s2.0-84936802355
论文题名:
Evaluating the impacts of cumulus, land surface and ocean surface schemes on summertime rainfall simulations over East-to-southeast Asia and the western north pacific by RegCM4
作者: Li Y.-B.; Tam C.-Y.; Huang W.-R.; Cheung K.K.W.; Gao Z.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 46, 期:2017-07-08
起始页码: 2487
结束页码: 2505
语种: 英语
英文关键词: Cumulus scheme ; Land surface model ; Ocean surface scheme ; Precipitation ; Regional climate model
英文摘要: This study evaluates the sensitivity of summertime rainfall simulations over East-to-southeast Asia and the western north Pacific in the regional climate model version 4 (RegCM4) to cumulus (including Grell with Arakawa–Schubert type closure, Grell with Fritsch–Chappell type closure, and Emanuel), land surface (Biosphere– atmosphere transfer scheme or BATS, and the community land model or CLM) and ocean surface (referred to as Zeng1, Zeng2 and BATS1e in the model) schemes by running the model with different combinations of these parameterization packages. For each of these experiments, ensemble integration of the model was carried out in the extended boreal summer of May–October from 1998 to 2007. The simulated spatial distribution, intensity and interannual variation of the precipitation, latent heat flux, position of the subtropical high and tropical cyclone genesis patterns from these numerical experiments were analyzed. Examinations show that the combination of Emanuel, CLM and Zeng2 (E-C-Z2) yields the best overall results, consistent with the fact that physical mechanisms considered in E-C-Z2 tend to be more comprehensive in comparison with the others. Additionally, the rainfall quantity is found very sensitive to sea surface roughness length, and the reduction of the roughness length constant (from 2 × 10−4 to 5 × 10−5 m) in our modified BATS1e mitigates the drastic overestimation of latent heat flux and rainfall, and is therefore preferable to the default value for simulations in the western north Pacific region in RegCM4. © Springer-Verlag Berlin Heidelberg 2015.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53771
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作者单位: Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, School of Geography and Remote Sensing, Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China; School of Energy and Environment, City University of Hong Kong, Hong Kong; The Chinese University of Hong Kong, Hong Kong; Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan; Department of Environmental Sciences, Macquarie University, Sydney, Australia; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Li Y.-B.,Tam C.-Y.,Huang W.-R.,et al. Evaluating the impacts of cumulus, land surface and ocean surface schemes on summertime rainfall simulations over East-to-southeast Asia and the western north pacific by RegCM4[J]. Climate Dynamics,2016-01-01,46(2017-07-08)
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