| 区域气候模式RegCM3产流方案的改进及数值试验 |
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| 引用本文： | 曾新民[,] 丁彪 宇如聪.区域气候模式RegCM3产流方案的改进及数值试验[J].南京大学学报(自然科学版),2005,41(6):603-611. |
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| 作者姓名： | 曾新民[ ] 丁彪 宇如聪 |
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| 作者单位： | [1]LASG,中国科学院大气物理研究所,北京100029 [2]教育部中尺度灾害性天气重点实验室,南京210093 [3]解放军理工大学气象学院,南京211101 |
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| 基金项目： | 国家自然科学基金项目（40205012和40201048）、中科院大气所LASG和高等学校博士学科点专项科研基金项目（20010284027） |
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| 摘 要： | 用改进的水文模型与详细陆面方案、大气模式耦合的区域气候模式模拟研究了夏季风气候陆面水文、气候特征．针对区域气候模式RegCM3中陆面方案BATS地表产流方案的不足，将更符合观测实际地考虑入渗和降水非均匀性的地表产流方案VXM并入BATS，利用改进后的区域气候模式模拟了我国1990、1991和1998年的夏季风气候，并采用我国160站的月降水资料及UNH-GRDC（University of New Hampshire，USA-Global Runoff Data Center）月径流资料对1990、1991模拟结果进行了验证．结果表明，地表产流方案的改进对区域气候模式RegCM3模拟降水的影响不大，但模拟的径流有较大提高目与实测更为一致．
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| 关 键 词： | 区域气候 陆面过程方案 水文模型 陆面非均匀性 |
| 收稿时间： | 12 1 2004 12:00AM |
Numerical Experiments of a Regional Climate Model with Improved Surface Runoff-Generation Scheme |
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| Zeng Xin-Min , Ding Biao, Yu Ru-Cong.Numerical Experiments of a Regional Climate Model with Improved Surface Runoff-Generation Scheme[J].Journal of Nanjing University: Nat Sci Ed,2005,41(6):603-611. |
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| Authors: | Zeng Xin-Min Ding Biao Yu Ru-Cong |
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| Institution: | 1. LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029,China; 2. Key Laboratory for Mesoscale Severe Weather of Ministry of Education, Nanjing, 210093, China; 3. Institute of Meteorology, PLA University of Science and Technology, Nanjing, 211101, China |
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| Abstract: | The hydroclimatology of summer monsoon was simulated with a Regional Climate Model/Version 3(RegCM3),which was coupled with an atmospheric module,a detailed land surface scheme,and an improved hydrological model.To improve the surface runoff-generation scheme in land surface scheme BATS with RegCM3,a more physically-based surface runoff generation scheme VXM,with heterogeneity in precipitation and infiltration considered,was incorporated into BATS.Hereafter the improved RegCM3 was used to simulate the 1990,1991 and 1998 summer monsoons of China.The monthly rainfall data of 160 meteorological stations of China,University of New Hampshire and USA-Global Runoff Data Center were utilized to validate the simulations for 1990 and 1991.Results show that,as a whole,the improved surface runoff-generation scheme has little influence on the simulation for rainfall with RegCM3.However,the simulated runoff amount is enhanced to quite a large extent,which is consistent with observations. |
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| Keywords: | regional climate land surface scheme hydrological model land surface heterogeneity |
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