“七下八上”防汛关键期：留意手机卫星地图里的白色图斑

Core Viewpoint - The article emphasizes the importance of effective monitoring and prevention of geological disasters during the critical flood period in China, utilizing a combination of technological and human resources for disaster management [1][2][3]. Group 1: Monitoring Methods - The monitoring methods for geological disasters are categorized into four types: "Sky," "Air," "Ground," and "Human" [2]. - "Sky" refers to satellite remote sensing, which allows individuals to check for unusual land features using satellite maps [2]. - "Air" involves aerial remote sensing through drones, which can provide detailed observations of hard-to-reach areas [2]. - "Ground" monitoring includes the use of instruments like crack meters and infrasound devices to detect signs of landslides and mudflows [2]. - "Human" monitoring relies on local residents and tourists to report any signs of geological changes [2]. Group 2: Effectiveness and Public Awareness - The implementation of these monitoring methods has led to significant achievements in disaster prevention, such as a successful evacuation in Danba County, Sichuan, after a warning about mudflow signs [3]. - Public awareness is crucial; individuals are advised to stay informed about weather forecasts and avoid dangerous areas during heavy rainfall [3].