Reservoir water regimen forecast simulation method and system based on digital twinning

The invention relates to the technical field of water conservancy informatization and flood control and disaster reduction, in particular to a reservoir water regimen forecast simulation method and system based on digital twinning. The method comprises the following steps: acquiring series data of geography, remote sensing, terrain, engineering characteristics and engineering structure of a specific reservoir engineering research area, and constructing a reservoir three-dimensional twinborn scene in combination with a three-dimensional modeling technology; obtaining reservoir characteristic data, modeling the reservoir characteristic data by using a preset hydrological model construction mode, and constructing a reservoir storage forecasting model; obtaining historical flood data of the reservoir, and performing data calibration on the reservoir inflow forecasting model by using the historical flood data of the reservoir to obtain an accurate reservoir inflow forecasting model; building a big data model accor