The small and medium river flood forecasting and water regime service system covers three aspects, namely, database and water regime information exchange, flood forecasting, and water regime information services. It mainly builds the data exchange subsystem, data exchange and monitoring subsystem, data exchange statistics subsystem, flood simulation subsystem, flood forecasting subsystem, water and rainfall regimes monitoring and early warning subsystem, information release subsystem, water and rain regimes query and analysis sub-system, basic information subsystem, and system management subsystem.
