DOI: 10.1007/s00382-016-3272-7
Scopus记录号: 2-s2.0-84981284315
论文题名: Sensitivity test of parameterizations of subgrid-scale orographic form drag in the NCAR CESM1
作者: Liang Y. ; Wang L. ; Zhang G.J. ; Wu Q.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2017
卷: 48, 期: 2017-09-10 起始页码: 3365
结束页码: 3379
语种: 英语
英文关键词: Community earth system model
; Parameterization schemes
; Subgrid-scale
; Turbulent form drag
英文摘要: Turbulent drag caused by subgrid orographic form drag has significant effects on the atmosphere. It is represented through parameterization in large-scale numerical prediction models. An indirect parameterization scheme, the Turbulent Mountain Stress scheme (TMS), is currently used in the National Center for Atmospheric Research Community Earth System Model v1.0.4. In this study we test a direct scheme referred to as BBW04 (Beljaars et al. in Q J R Meteorol Soc 130:1327–1347, 2004. doi:10.1256/qj.03.73), which has been used in several short-term weather forecast models and earth system models. Results indicate that both the indirect and direct schemes increase surface wind stress and improve the model’s performance in simulating low-level wind speed over complex orography compared to the simulation without subgrid orographic effect. It is shown that the TMS scheme produces a more intense wind speed adjustment, leading to lower wind speed near the surface. The low-level wind speed by the BBW04 scheme agrees better with the ERA-Interim reanalysis and is more sensitive to complex orography as a direct method. Further, the TMS scheme increases the 2-m temperature and planetary boundary layer height over large areas of tropical and subtropical Northern Hemisphere land. © 2016, Springer-Verlag Berlin Heidelberg. 资助项目: NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53235
Appears in Collections: 过去全球变化的重建
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作者单位: College of Global Change and Earth System Science, Beijing Normal University, Beijing, China; Scripps Institution of Oceanograhy, La Jolla, CA, United States; Center for Earth System Science, Tsinghua University, Beijing, China; Joint Center for Global Change Studies, Beijing, China
Recommended Citation:
Liang Y.,Wang L.,Zhang G.J.,et al. Sensitivity test of parameterizations of subgrid-scale orographic form drag in the NCAR CESM1[J]. Climate Dynamics,2017-01-01,48(2017-09-10)