科技日报：我国数字孪生水利体系框架基本形成

Group 1 - The core viewpoint of the article highlights the establishment of a digital twin water conservancy system in China, which has significantly improved water disaster prevention and water resource management, providing strong technical support for high-quality water conservancy development and national water security [1][2]. - The digital twin water conservancy system consists of digital twin basins, digital twin water networks, and digital twin water conservancy projects, integrating big data, cloud computing, and artificial intelligence with water conservancy operations [1]. - The Ministry of Water Resources has implemented a series of documents to systematically promote the construction of the digital twin water conservancy system, with 94 pilot tasks completed and 11 key projects, including the Three Gorges and South-to-North Water Diversion projects, already in practical application [1][2]. Group 2 - A comprehensive monitoring and perception system integrating "sky, land, water, and engineering" is being accelerated, covering 34 remote sensing satellites, over 180 rain radar stations, and more than 136,000 ground hydrological stations [2]. - The application of digital twin technology in water disaster prevention has led to significant improvements in forecasting and warning systems, with a total of 2.72 million flood forecasts issued and the forecast accuracy reaching 90% [2]. - The construction of the digital twin water conservancy system enhances governance efficiency, addressing issues of illegal occupation and construction in river and lake areas, thereby improving the overall condition of water bodies and increasing public satisfaction [3].