DOI: 10.1007/s00382-011-1182-2
Scopus记录号: 2-s2.0-84856251129
论文题名: Modeling the hydroclimatology of the midwestern United States. Part 1: Current climate
作者: Winter J.M. ; Eltahir E.A.B.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 38, 期: 2017-03-04 起始页码: 573
结束页码: 593
语种: 英语
英文关键词: Hydrology
; Midwestern United States
; Regional climate modeling
英文摘要: An ensemble of six 22-year numerical experiments was conducted to evaluate the ability of Regional Climate Model version 3 (RegCM3) to simulate the energy and water budgets of the midwestern United States. RegCM3 was run using two surface physics schemes: Integrated Biosphere Simulator (IBIS) and Biosphere-Atmosphere Transfer Scheme 1e (BATS1e), and two convective closure assumptions: Fritsch & Chappell (FC80) and Arakawa & Schubert (AS74). Boundary conditions were provided by the National Centers for Environmental Prediction-Department of Energy Reanalysis 2 dataset and the ECHAM5 general circulation model. A companion paper examines the American Midwest under future climate scenarios. Overall, the model that reproduces the observed seasonal cycles of the midwestern United States climate system best is RegCM3 using IBIS and the AS74 convective closure assumption. IBIS simulates shortwave radiation more accurately, while BATS1e simulates longwave radiation more accurately. Summer two-meter air temperature is overestimated by the combination of IBIS and the FC80 convective closure assumption. All models contain a wet bias and overestimate evapotranspiration during the spring. Total runoff, surface runoff, groundwater runoff, and root zone soil moisture are best simulated by RegCM3 using IBIS and the AS74 convective closure assumption. While BATS1e does capture the seasonal cycle of total runoff, gross errors in the partitioning of total runoff between surface runoff and groundwater runoff exist. The seasonal cycle of root zone soil moisture simulated by RegCM3 using IBIS and the AS74 convective closure assumption is dry, but agrees with observations during the summer. The rest of the models underestimate root zone soil moisture. © 2011 Springer-Verlag (outside the USA).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55378
Appears in Collections: 过去全球变化的重建
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作者单位: Massachusetts Institute of Technology, Cambridge, MA, United States; NASA Goddard Institute for Space Studies, New York, NY, United States
Recommended Citation:
Winter J.M.,Eltahir E.A.B.. Modeling the hydroclimatology of the midwestern United States. Part 1: Current climate[J]. Climate Dynamics,2012-01-01,38(2017-03-04)