Method for calculating critical rainfall of mountain torrent disaster by rainfall-flow-water level coupling interpolation

• Main Authors: XU DELONG, WANG TAO, LUO QIAN, XU JIANQIU, ZHANG CHAO, MAO BEIPING, MEI JUNYA
• Format: Patent
• Language: Chinese; English
• Published: 20.07.2018
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention provides a method for calculating the critical rainfall of a mountain torrent disaster by a rainfall-flow-water level coupling interpolation. The method comprises: carrying out data evaluation; carrying out model construction; carrying out index calculation; and calculating a critical rainfall of a mountain torrent disaster by using a rainfall-flow-water level coupling interpolation.According to the method, a disaster water level of a mountain torrent disaster field investigation evaluation object is transformed into a disaster flow by using a hydraulics method; and on the basisof a coupling relationship between the precipitation at earlier stages of different drainage basins within a certain period of time on the condition of rainfall affecting and formed corresponding field flood peak flows, mountain torrent disaster critical rainfall at earlier stages of different drainage basins on the condition of rainfall affecting is calculated based on interpolation. Therefore,a technical support is prov