冻雨不是雪 盘点低温雨雪冰冻天气常见误区

Core Viewpoint - The article emphasizes the misconceptions surrounding low-temperature rain, snow, and freezing weather, highlighting the differences between freezing rain and snow, and the complexities of low-temperature weather phenomena [1][3][7]. Group 1: Weather Phenomena - Freezing rain and snow are both winter precipitation types, but they differ in formation and appearance. Snow forms from water vapor in high-altitude clouds, while freezing rain consists of supercooled water droplets that freeze upon contact with surfaces [1]. - A common misconception is that ice only forms when temperatures are below 0°C. However, surface temperatures can drop below 0°C due to factors like radiative cooling, even when air temperatures are above freezing [3][5]. Group 2: Impact of Low-Temperature Weather - Low-temperature rain, snow, and freezing disasters are not isolated weather events but rather a combination of cold waves, low temperatures, rain, snow, and freezing conditions. This compound disaster can have significant and prolonged impacts on infrastructure [7]. - The effects of low-temperature rain and snow can be complex and cumulative, affecting various sectors such as electricity, communication, transportation, agriculture, and public health [7].