Flood forecasting method suitable for semi-arid and semi-humid region

• Main Authors: WU PENGLIN, ZHU XUEPING, CAI WENJUN, ZHAO XUEHUA, ZHANG YU, LIANG YANKUAN
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses a flood forecasting method based on an improved double-super model for a semi-arid and semi-humid region, and the method comprises the steps: carrying out the early-stage processing of DEM data of a research region based on a GIS platform, and obtaining geomorphic feature parameters of sub-basins; establishing a sub-basin R-V geomorphic instantaneous unit line (RGIUH) on the basis of the sub-basin R-V geomorphic instantaneous unit line; and then using a geomorphic instantaneous unit line method for replacing a confluence calculation method in the double-super model to construct a double-super-RGIUH model, and using the flood forecasting model for flood forecasting of the semi-arid and semi-humid region after parameter calibration. The invention provides a flood forecasting method for a semi-arid and semi-humid region, which has important significance for improving the flood forecasting precision and researching flood forecasting in a region without data, and provides technical support