Construction of an Urban Flood Warning,Forecasting and Emergency Response Platform
With the improvement of urban flood prevention and safety management requirements,flood risk management is becoming more and more refined,requiring city administration to respond quickly in case of sudden flood events.However,the informatization and intelligence of the existing urban flood management system do not provide enough support for flood disaster prevention,further affecting the efficiency of flood pre-vention response.Therefore,based on digital twin,intelligent models,the Internet of Things,big data and other technologies,the core technical route of"monitoring perception-model calculation-risk assessment-warning matching-flood simulation-plan management-response dispatching"is used to build an urban flood forecast,warning and emergency management platform for the digital twin oriented"Four Forecasts".The application results show that the flood forecasting efficiency can be increased by 23.88～158.72 times and the calculation accuracy can be improved by 9.56～19.55 times under different working conditions;a full-chain intelligent urban flood control safety guarantee system of"rainfall forecast+flood warning+flood evolution+dispatch plan"is proposed,and the flood forecast and dispatch response efficiency is increased by 400 times,achie-ving accurate prediction,improving dispatching and command capabilities,and reducing the losses caused by flood disasters.
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