中国网：我国数字孪生水利体系框架基本形成，34颗卫星、13.6万个水文站织密监测网

Core Viewpoint - The construction of the digital twin water conservancy system in China has made significant progress during the 14th Five-Year Plan period, providing strong support for high-quality water conservancy development and water security assurance [1][2]. Group 1: Digital Twin Water Conservancy System Development - The digital twin water conservancy system framework has been basically formed, integrating monitoring and perception systems for comprehensive water management [1]. - The system focuses on four key functions: forecasting, early warning, simulation, and planning, utilizing big data and cloud computing technologies [1][2]. - Key components include digital twin river basins, water networks, and water conservancy projects, which are interconnected and emphasize different aspects [1]. Group 2: Achievements and Applications - 94 pilot tasks for digital twin river basins have been completed, and 14 provincial water network pilot areas are being developed [2]. - Digital twin systems for 11 major projects, including the Three Gorges and South-to-North Water Diversion, have been implemented, with significant progress in 49 irrigation areas and 230 rural water supply projects [2]. - The system has played a crucial role in water and drought disaster prevention, with 272 million flood forecasts issued and a 90% accuracy rate for key river flood forecasts [2][3]. Group 3: Operational Enhancements - The integrated model for flood forecasting and dispatching has been developed, allowing for dynamic simulations and risk analysis of different dispatch scenarios [3]. - The system has successfully guided local water authorities in flood defense measures, achieving goals such as zero casualties and no breaches during significant flood events [3]. - The digital twin system has been instrumental in managing water resources efficiently, with 58 control reservoirs reaching a record high of 1,081 billion cubic meters of water storage [3]. Group 4: Future Directions - The monitoring and perception system now includes 34 remote sensing satellites, over 180 rain gauges, and 136,000 hydrological stations, covering core water conservancy operations [4]. - The Ministry of Water Resources plans to continue advancing the digital twin water conservancy system to meet new governance demands and enhance water security for modern development in China [4].