Patent ID: 11886967
Assignee: WUHAN UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 1:
2. The long-term streamflow forecast method of claim 1, wherein, the step 2 comprises the following sub-steps:
sub-step 2.1, performing grid division on the target watershed and preparing a longitude and latitude coordinate file of a grid center;
sub-step 2.2, preparing a ratio file of a watershed-covered area in each grid, a region flow direction file, a soil data file and a land utilization input file;
sub-step 2.3, interpolating daily-scale meteorological observation data of the watershed to a grid scale to obtain a meteorological forcing input file;
sub-step 2.4, after performing trial operation on the VIC distributed hydrological model based on default initial parameters, with a Nash-Sutcliffe efficiency coefficient and a relative error of a total streamflow as a target function, performing calibration on runoff generation and routing parameters of the watershed.