Simulation forecasting method for estuary region salty tide chlorosity

The invention relates to the technical field of environment data models, in particular to a simulation forecasting method for estuary region salty tide chlorosity. The method comprises the following steps that: S1: collecting actual measurement flow, water level, chlorosity and riverway terrain data; S2: constructing a model library which comprises a water flow mathematical model and a chlorositymathematical model, wherein the water flow mathematical model and the chlorosity mathematical model are organically combined through a coupling relationship; S3: carrying out model parameter calibration; S4: utilizing the actual measurement flow, the water level and the chlorosity for verification; and S5: carrying out model application and output. By use of the method, the water flow mathematicalmodel and the chlorosity mathematical model are organically combined, the simulation of large complex network river region river chlorosity is realized on the basis of the water flow mathematical model, modularized design wit