Two Severe Local Storms as Observed in the Arid Area of Northwest China
Two Severe Local Storms as Observed in the Arid Area of Northwest China
复制标题
西北干旱区两次强局地风暴
DOI：
10.2151/jmsj1965.73.6_1269
复制
发表时间：
1995
影响因子：
3.1
通讯作者：
Minlian Chen
中科院分区：
文献类型：
--
作者：
Y. Mitsuta;Taiichi Hayashi;T. Takemi;Yinqiao Hu;Jiemin Wang;Minlian Chen
在HEIFE项目的观测期间，观测到两次强风暴。分析了干旱区暴雨的结构。两股风暴的规模，并不相同。一个是10公里的顺序和其他的100公里的顺序，但这两个风暴的特点是一个强大的下沉气流内发展良好的对流云：一个飑线和一个单一的积雨云，分别。在飑线个案中，由于飑线扩大，强风持续约三小时，风向一致。在单个积雨云的情况下，由于地面下沉气流的作用，风场是辐散的。这些严重的风暴在自然界中与世界各地观察到的现象相似。
During the observation period of the project HEIFE, two severe storms were observed. The structure of these storms in the arid area are analyzed. The scales of the two storms were different from each other. One was of the order of 10 km and the other of the order of 100 km; however both storms were characterised by a strong downdraft within the well developed convective cloud: a squall line and a single cumulonimbus cloud, respectively. In the squall line case, strong winds with uniform wind direction continued for about three hours, which was caused by the widening of the squall line. In the case of the single cumulonimbus cloud, the wind field was divergent owing to the downdraft at the surface. These severe storms are similar phenomena in nature to those observed all over the world.