水利部答一财：在推进数字孪生水利体系建设中，重点抓监测感知、数学模型建设和业务应用三方面

Core Viewpoint - The future trend and development direction of the water conservancy sector are digitalization, networking, and intelligence, with a focus on building a digital twin water conservancy system to enhance flood prevention, water resource management, and operational efficiency [1][2] Group 1: Digital Twin Water Conservancy System - The Ministry of Water Resources is advancing the construction of a digital twin water conservancy system, which includes digital twin basins, water networks, and engineering projects, significantly enhancing the "four-pre" functions of forecasting, warning, simulation, and planning [1] - Key areas of focus in the digital twin water conservancy system include monitoring perception, mathematical model construction, and business applications [1] Group 2: Monitoring and Perception - Since the "14th Five-Year Plan," there has been a rapid development of an integrated monitoring perception system that combines aerial, terrestrial, and water engineering monitoring, improving the ability to perceive water conservancy physical objects [1] - This system provides dynamic real-time information support for monitoring and controlling safety risks in water conservancy projects and the operation of the digital twin water conservancy system [1] Group 3: Mathematical Models - The construction of a high-fidelity digital flow field simulation mathematical model system is underway, enabling forward-reverse-forward application for decision support in flood and drought disaster prevention and unified scheduling of watershed engineering [1] Group 4: Business Applications - The digital twin platform construction is being advanced based on actual needs and utility orientation, covering various business applications at all levels [2] - The flood forecasting period for major rivers has been extended from 3 days to 10 days, providing strong support for flood resistance in significant events, such as the largest flood in the Beijiang River since 1915 [2] - Monitoring and early warning for ecological flow control at 268 key river and lake sections across the country have been achieved, ensuring safety in the South-to-North Water Diversion Project [2]