视频丨冻雨不是雪 盘点低温雨雪冰冻天气常见误区

Core Viewpoint - The article highlights common misconceptions regarding low-temperature rain, snow, and ice weather, emphasizing the importance of accurate understanding to improve safety and response efficiency during such conditions [1][5]. Group 1: Weather Phenomena - Precipitation forms are complex and diverse, with freezing rain and snow often causing confusion due to their different formation processes and characteristics [3]. - Snow forms from water vapor in high-altitude clouds directly crystallizing into ice, while freezing rain consists of supercooled water droplets that freeze upon contact with surfaces, creating a smooth ice layer [3]. Group 2: Temperature Misconceptions - A common misconception is that ice only forms when temperatures are below 0°C; however, surface temperatures can be affected by various factors, leading to freezing even when air temperatures are above 0°C [5][7]. - The temperature reported in weather forecasts refers to the air temperature measured at 1.5 meters above ground, which may differ from the actual surface temperature due to radiation cooling and other effects [7]. Group 3: Composite Disasters - Low-temperature rain, snow, and ice disasters are not isolated weather events but rather composite disasters resulting from the combination of cold waves, low temperatures, rain, snow, and ice [9]. - The destructive power of these disasters arises from the synergistic effects of low temperatures and precipitation, leading to prolonged impacts on infrastructure and various sectors, including electricity, communication, transportation, agriculture, and public health [9].