Core Viewpoint - The article discusses the characteristics and challenges of flood control during the critical flood prevention period in China, highlighting the increase in extreme rainfall events and their impact on flood management strategies. Group 1: Flood Characteristics - This year's flood events are characterized by extreme intensity, high disaster potential, and a concentration of rainfall in northern regions, particularly during the "July to August" flood prevention period [1][6] - The number of officially numbered floods in northern areas is significantly lower than last year, with only two occurrences compared to 26 in the previous year, indicating a change in flood frequency and impact [2][3] - Despite fewer rivers exceeding warning levels (330 this year compared to 561 last year), the number of rivers experiencing historical flood levels remains the same at 22, primarily affecting small and medium rivers [3][4] Group 2: Rainfall and Disaster Impact - Rainfall in the northwest and north China has increased by over 50% compared to the same period in previous years, with some areas experiencing up to double the usual rainfall [8] - Over 300 rivers experienced floods exceeding warning levels during this period, with half of these incidents occurring in northern regions, including significant floods in the Chaobai River and the Dahu River [8] - Although the overall disaster impact is lower than in previous years, certain areas like Beijing and Hebei have reported severe damage, indicating localized vulnerabilities [9] Group 3: Preparedness and Response Strategies - The article emphasizes the need for improved flood control infrastructure and emergency preparedness plans that account for extreme rainfall events, as traditional plans may no longer be sufficient [9][10] - Key recommendations include enhancing emergency response capabilities, ensuring effective command and coordination during heavy rainfall, and conducting thorough inspections of vulnerable areas and critical infrastructure [12] - The importance of timely warnings and evacuations is highlighted, with a focus on proactive measures to ensure safety during extreme weather events [13]