Digital twinborn analysis method for flood disaster prevention in extreme rainstorm weather

The invention discloses a digital twinborn analysis method for flood disaster prevention in extreme rainstorm weather. The method comprises the following steps of: 1, constructing a data base plate, namely constructing the data base plate based on digital twin construction according to water conservancy basic data, high-precision geographic space data, dynamic monitoring data, business management data and cross-industry shared data; step 2, rainfall forecasting: providing a plurality of rainfall forecasting modes; flood analog simulation and rehearsal in a digital scene are achieved through four-pre digital twinborn analysis of data base plate building, rainfall forecasting, flood forecasting, evaluation and early warning, analog rehearsal and treatment plan, flood prevention consultation decision is effectively supported, and weak links of a traditional flood prevention consultation process are further optimized; and the capability and level of unified scheduling and unified management of flood control of fl