| 一个水文模型与区域气候模式耦合的数值模拟研究(英) |
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| 作者姓名： | ZENG Xinmin ZHAO Ming SU Bingkai TANG Jianping ZHENG Yiqun GUI Qijun ZHOU Zugang |
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| 作者单位： | Institute of Meteorology，P.L.A. University of Science and Technology，Key Laboratory for Mesoscale Severe Weather，the China Ministry of Education，Nanjing University，Key Laboratory for Mesoscale Severe Weather，the China Ministry of Education，Nanjing University，Key Laboratory for Mesoscale Severe Weather，the China Ministry of Education，Nanjing University，Institute of Meteorology，P.L.A. University of Science and Technology，Institute of Meteorology，P.L.A. University of Science and Technology，Institute of Meteorology，P.L.A. University of Science and Technology Nanjing 211102，Key Laboratory for Mesoscale Severe Weather，the China Ministry of Education，Nanjing University，Nanjing 210093，Nanjing 210093，Nanjing 210093，Nanjing 210093，Nanjing 211102，Nanjing 211102，Nanjing 211102 |
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| 基金项目： | This work was jointly supported by the National Natural Science Foundation of China under Grant No. 40205012, and 40201048, the Chinese NKBRSF Project G1999043400 and the Foundation of the China Ministry of Education (Grant No. 20010284027). The computat |
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| 摘 要： | 在陆面过程方案中考虑精细的水文模型有助于改善对区域水文及气候的模拟。建立了一个考虑降水及入渗空间非均匀性的水文模型,并将其并入陆面过程方案BATS中。通过区域气候模式耦合模拟试验,得到如下主要结论:陆面水文的模拟对降水及入渗空间非均匀性的考虑非常敏感:考虑入渗非均匀性后,提高了径流系数,这与湿润地区水分平衡的观测结果更一致;入渗非均匀参数化方案的引入对区域水文及气候模拟的影响比降水非均匀参数化方案的引入要大:不透水面积在区域中的考虑所揭示的特征与我国北方干旱化趋势是一致的。
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| 关 键 词： | 水文模型 空间非均匀性 水量平衡 区域气候 敏感性试验 |
| 收稿时间： | 8 January 2002 |
Simulations of a Hydrological Model as Coupled to a Regional Climate Model |
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| ZENG Xinmin,ZHAO Ming,SU Bingkai,TANG Jianping,ZHENG Yiqun,GUI Qijun,ZHOU Zugang.Simulations of a Hydrological Model as Coupled to a Regional Climate Model[J].Advances in Atmospheric Sciences,2003,20(2):227-236. |
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| Authors: | ZENG Xinmin ZHAO Ming SU Bingkai TANG Jianping ZHENG Yiqun GUI Qijun and ZHOU Zugang |
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| Institution: | Institute of Meteorology, P.L.A. University of Science and Technology, Nanjing 211102;Key Laboratory for Mesoscale Severe Weather,the China Ministry of Education, Nanjing University, Nanjing 210093,Key Laboratory for Mesoscale Severe Weather,the China Ministry of Education, Nanjing University, Nanjing 210093,Key Laboratory for Mesoscale Severe Weather,the China Ministry of Education, Nanjing University, Nanjing 210093,Key Laboratory for Mesoscale Severe Weather,the China Ministry of Education, Nanjing University, Nanjing 210093,Institute of Meteorology, P.L.A. University of Science and Technology, Nanjing 211102,Institute of Meteorology, P.L.A. University of Science and Technology, Nanjing 211102,Institute of Meteorology, P.L.A. University of Science and Technology, Nanjing 211102 |
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| Abstract: | Considering a detailed hydrologic model in the land surface scheme helps to improve the simulation of regional hydro-climatology. A hydrologic model, which includes spatial heterogeneities in precipitation and infiltration, is constructed and incorporated into the land surface scheme BATS. Via the coupled-model (i.e., a regional climate model) simulations, the following major conclusions are obtained: the simulation of surface hydrology is sensitive to the inclusion of heterogeneities in precipitation and infiltration; the runoff ratio is increased after considering the infiltration heterogeneity, a result which is more consistent with the observations of surface moisture balance over humid areas; the introduction of the parameterization of infiltration heterogeneity can have a greater influence on the regional hydro-climatology than the precipitation heterogeneity; and the consideration of the impermeable fraction for the region reveals some features that are closer to the trend of aridification over northern China. |
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| Keywords: | hydrological model spatial heterogeneity moisture balance regional climate sensitivity test |
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