乌鲁木齐机场一次高影响冻雨天气分析
Case Analysis of a High-Impact Freezing Rain Event Occurred at Urumqi Airport
DOI: 10.12677/OJNS.2022.106110, PDF,   
作者: 黄海波：民航新疆空管局气象中心，新疆 乌鲁木齐
关键词: 高影响；冻雨；暖雨机制；风切变；High-Impact； Freezing Rain； A Supercooled Warm Rain Process； Wind Shear
摘要: 利用常规气象资料，从环流形势和大气层结特征等方面对2015年3月31日发生在乌鲁木齐机场的一次高影响冻雨天气进行了分析。结果表明：此次冻雨天气的形成机制为“过冷暖雨”机制，即云滴通过碰并过程增长形成过冷水滴(雨滴)，其动力来自云内强烈的风切变。当过冷水滴(雨滴)接触到0℃以下的地面或者其他物体表面时，迅速冻结形成冻雨。
Abstract: Based on the routine observational data, synoptic and local conditions associated with a high-impact freezing rain event occurred at Urumqi airport on 31 March 2015 has been analyzed, including synoptic circulation and stratification characteristics. The results suggest that the for-mation of this freezing rain event can be attributed to a supercooled warm rain process, i.e. small cloud droplets grow up to big supercooled water droplets (raindrops) by collision and coalescence, due to the strong wind shear within the cloud. When supercooled water droplets (raindrops) fall on the ground or other surfaces below 0˚C, they quickly freeze and form the freezing rain.
文章引用：黄海波. 乌鲁木齐机场一次高影响冻雨天气分析[J]. 自然科学, 2022, 10(6): 980-985. https://doi.org/10.12677/OJNS.2022.106110

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