Study on Optimization of Water Regime Gauge Network in the Yalongjiang River Basin Under Rainfall Retrieval by Satellite
The temporal and spatial consistency of precipitation will significantly affect the runoff that converges to the outlet of the basin.The hydrological gauge is an effective way to obtain the true value of precipitation.In Southwest region,spatial representativeness of existing hydrological gauge is insufficient due to restrict of terrain,transportation and communication,and it needs to implement optimization and adjustment.Taking the Yalongjiang River Basin as an exam-ple,the hydrological gauge network density was analyzed.Based on the CMORPH satellite inverse precipitation product and precipitation monitoring data in the existing hydrological gauge network,the high value range of interval precipitation and the weak area of the gauge distribution were analyzed.The results show that there are 6 areas,namely Qingda River,Huoqu,and Liqiu River,Lenggu(Xin)-Mengdigou main stream left bank area,Litang River Luosang area,Jiulong River need to consider prioritized gauge deployment during the project construction process and raise spatial representativeness of precipitation monitoring.
CMORPHhydrological gaugeYalongjiang River Basinregionoptimization of gauge network
万方数据
维普
