测扫雷达等水文监测设备

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数字赋能有力防范洪涝风险
Jing Ji Ri Bao· 2025-08-20 23:12
Core Viewpoint - The article discusses the ongoing impact of Typhoon "Yangliu" and extreme rainfall in various regions of China, emphasizing the need for continued flood prevention measures despite the end of the critical flood prevention period known as "Qixiang" [1][2]. Group 1: Flood Situation and Response - The "Qixiang" period has seen extreme rainfall in northern regions, with 330 rivers experiencing floods above warning levels, and 22 rivers recording the highest floods since records began [2]. - Three typhoons made landfall during the "Qixiang" period, which is one more than the average for this time of year, affecting 13 provinces and causing significant rainfall and flooding [2]. - The flood situation has varied across regions, with some areas experiencing rapid water level rises, such as the North Luo River, which saw a 10.4-meter increase in just 11 hours [2][7]. Group 2: Future Weather Predictions - Forecasts indicate that from late August, regions including Northeast, North China, and South China will experience above-average rainfall, with some areas expecting 30% to 60% more precipitation [3]. - In September, it is anticipated that 10 to 11 typhoons will form in the Northwest Pacific and South China Sea, with 2 to 3 expected to impact or land in China [3]. Group 3: Technological Support in Flood Prevention - The Ministry of Water Resources has enhanced monitoring and forecasting capabilities through advanced technologies, including satellite and radar systems, to improve flood prediction accuracy [4][5]. - During recent flood events, the use of modern hydrological monitoring equipment, such as drones and radar, has significantly improved data timeliness and forecasting precision [4][5]. Group 4: Water Engineering and Management - During the "Qixiang" period, 1,388 large and medium-sized reservoirs were utilized to store 146.5 billion cubic meters of floodwater, effectively reducing downstream flood pressure and preventing the displacement of over 1.06 million people [7]. - The Ministry of Water Resources has focused on the safe operation of water engineering projects, employing advanced technologies to monitor dam conditions and prevent risks such as dam failure [8].