黄河源区多源融合降水产品综合评价及其水文效应评估  

Comprehensive evaluation and hydrological effect evaluation of multi-source fusion precipitation product in the Yellow River source area

作　　者：雍斌[1] 周振杨 陶新[2] 吕毅 YONG Bin;ZHOU Zhenyang;TAO Xin;LYU Yi(College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China;Hydrology Bureau of Yellow River Conservancy Commission,Zhengzhou 450004,China)

机构地区：[1]河海大学水文水资源学院,江苏南京210098 [2]黄河水利委员会水文局,河南郑州450004

出　　处：《水资源保护》2025年第2期47-57,76,共12页Water Resources Protection

基　　金：国家自然科学基金项目(U224320068)。

摘　　要：以黄河源区为研究区,对多源融合降水产品(DML-TPP)进行了综合评价,并将其与纯红外遥感降水产品PERSIANN-CCS、卫星降水产品GSMaP_G、再分析数据集ERA5-L进行了比较。结果表明:ERA5-L对降水量存在一定程度高估,但较好地反映了整个黄河源区降水的时空格局;GSMaP_G在降水量估算方面较其他产品表现更优秀,在以气象站插值数据率定栅格新安江模型参数的方案中,GSMaP_G对黄河源区门玛区间的水文效应评估结果更好;在采用降水产品对栅格新安江模型进行参数率定的方案中,基于DML-TPP和ERA5-L的径流模拟在平水年表现最佳,基于GSMaP_G的模拟结果则更好地复现了丰水年的洪峰。Taking the Yellow River source area as the study area,a comprehensive evaluation was conducted on the multi-source fusion precipitation product(DML-TPP),and it was compared with the pure infrared rainfall product PERSIANN-CCS,satellite precipitation product GSMaP-G,and reanalysis dataset ERA5-L.The results show that ERA5-L overestimates precipitation to a certain extent,but reflects the spatiotemporal pattern of precipitation in the entire Yellow River source area well.GSMaP_G performs better in precipitation estimation compared to other products.In the scheme of calibrating the parameters of the grid Xin’anjiang model with interpolated data from meteorological stations,GSMaP_G has a better evaluation of hydrological effects in the Menma section of the Yellow River source area.In the scheme of using precipitation products to calibrate the parameters of the grid Xin’anjiang model,the runoff simulation based on DML-TPP and ERA5-L performed the best in normal years,while the simulation results based on GSMaP_G better reproduced the flood peak in wet years.

关 键 词：多源融合降水产品 水文模拟 栅格新安江模型 误差传播 黄河源区 

分 类 号：P237[天文地球—摄影测量与遥感]