摘要
文章主要是通过对TRMM卫星降水数据的精度评价及修正,以水文模型为工具,进一步分析卫星降雨产品在无资料地区的适用性。在相似流域确定的基础上,人为拟定一个流域作为无资料地区,进行卫星修正系数以及模型参数的移用,并对其径流模拟结果进行对比分析。结果表明:TRMM卫星降水数据的日模拟结果不理想,经过校正后的数据,对径流的模拟能力有明显提升;分布式新安江模型参数在相似流域的移用效果较好,在移用模型参数的情况下,再移用修正系数修正RT数据,其日径流模拟结果不好,但此方法可用于无资料地区的中长期水文模拟研究。
In this paper,the applicability of satellite rainfall products in regions without data is further analyzed by means of accuracy evaluation and correction of TRMM satellite precipitation data and hydrological model.On the basis of the determination of similar basins,a basin was selected as a no-data area,the satellite correction coefficient and model parameters were applied,and the runoff simulation results were compared and analyzed.The results show that the daily simulation results of TRMM satellite precipitation data are not ideal,and the ability of runoff simulation has been significantly improved by the corrected data.The transfer effect of the distributed Xin'anjiang model parameters is better in similar basins.When the model parameters are transferred,the daily runoff simulation results are not good when the RT data are modified by the correction coefficient.However,this method can be used for medium and long term hydrological simulation in the region without data.
作者
肖兴涛
王加虎
XIAO Xing-tao;WANG Jia-hu(Heilongjiang Provincial Hydrology and Water Resources Center,Harbin 150001,China;Hydrology and Water Resources Institute of Hehai University,Nanjing 210098,China)
出处
《黑龙江水利科技》
2022年第2期142-147,共6页
Heilongjiang Hydraulic Science and Technology
基金
国家研发计划重点项目:山区暴雨山洪水沙灾害预报预警关键技术研究与示范(2019YFC1510700)。
