Core Viewpoint - During the "14th Five-Year Plan" period, China is accelerating the construction of a digital twin water conservancy system, enhancing water management and governance capabilities through advanced monitoring and forecasting technologies [1][4]. Group 1: Monitoring and Detection Systems - China has established a comprehensive monitoring and perception system consisting of 31 remote sensing satellites, over 4,000 drones, more than 100 rain radar stations, 133,000 ground water monitoring stations, and over 300,000 safety monitoring points for water conservancy projects [4]. - The system integrates various technologies, including infrared cameras and laser radars on drones, to detect issues such as dam leakage and piping [1][4]. Group 2: Flood Prevention and Management - The country is advancing the "four-preparation" capabilities for flood prevention across seven major river basins, providing strong support for resisting regional flooding [4]. - The development of models such as the "cloud-rain" precipitation forecasting model and hydrodynamic flood propagation model aims to extend the forecasting period and improve accuracy [7]. Group 3: Disaster Defense Systems - The Yellow River Water Resources Commission is working on a disaster defense system by comparing physical parameters and experimental results between the prototype Yellow River and the digital twin Yellow River [6].