基于RegCM3和DLBRM的耦合系统CRCHMS的构建及其在黑河上游的应用  

Construction of a Coupling System CRCHMS Based on RegCM3 and DLBRM and Application in the Upper Reaches of the Heihe River

作　　者：王勇[1,2,3] 张兰慧[2] 李文静[1] 于德才 WANG Yong;ZHANG Lanhui;LI Wenjing;YU Decai(Lanzhou Central Meteorological Observatory,Lanzhou 730000,China;Key Laboratory of West China’s Environmental System(Ministry of Education)/Lanzhou University,Lanzhou 730000,China;College of Atmospheric Sciences,Lanzhou University,Lanzhou 730000,China;Baiyin Meteorological Bureau,Baiyin 730900,China)

机构地区：[1]兰州中心气象台,甘肃兰州730000 [2]兰州大学资源环境学院/西部环境教育部重点实验室,甘肃兰州730000 [3]兰州大学大气科学学院,甘肃兰州730000 [4]白银市气象局,甘肃白银730900

出　　处：《沙漠与绿洲气象》2023年第3期126-133,共8页Desert and Oasis Meteorology

基　　金：国家自然科学基金项目(41877148);中央高校基本科研业务费专项资金项目(lzujbky-2021-sp12);甘肃省科技计划项目(20YF3FA012)。

摘　　要：以高寒山区—黑河流域上游为研究区,确定区域气候模式RegCM3的模拟方案,率定分布式水文模型(DLBRM),并开发了RegCM3和DLBRM模型接口,从而构建了区域气候水文耦合模拟系统CRCHMS。结果表明,以RegCM3作为气象驱动数据的CRCHMS系统模拟性能优于以观测站点作为气象驱动数据的DLBRM模型,对莺落峡径流量的模拟值与实测值的相关系数在校准期和验证期分别为0.47和0.62,均方根误差分别为0.045和0.044 cm/d,相对误差分别为-0.4%和6%,纳什系数在率定期和验证期分别为0.22和0.36。A coupled system CRCHMS(Coupled Regional Climate and Hydrological Modeling System)was established based on a regional climate model(RegCM3)and a hydrological model(DLBRM),and applied in the upper reach of the Heihe River Basin.The simulation schemes of the RegCM3 model were determined,the DLBRM(Distributed Large Basin Runoff Model)model was calibrated,and the interfaces were developed to process the RegCM3 output as the input of the DLBRM models.The results showed that performance of CRCHMS system driven by RegCM3 was more reliable than DLBRM model using meteorological observation data for driving model.The R values between simulated and observed runoff at Yingluoxia were 0.47 and 0.62,and with 0.045 cm/d and0.044 cm/d of RMSE values,-0.4%and 6%of RE values,0.22 and 0.36 of NSE values in calibration period and validation period,respectively.In addition,bias correction of RegCM3 output could improve the performance of the CRCHMS model,which will be further improved in the future,in order to accurately simulate and analyze the impact of climate change on the hydrological processes of mountain basins.

关 键 词：REGCM3 区域气候水文耦合模型 黑河流域 径流量 

分 类 号：P466[天文地球—大气科学及气象学]