地形对阿克苏地区冰雹云分布特征的影响分析

Influence of Topography on Hail Cloud Distribution in Aksu Area

利用2015—2019年阿克苏地区人工影响天气防雹作业资料,统计冰雹月、日变化、冰雹落区分布情况,结合地理特征分析地形作用下阿克苏地区冰雹云空间分布特征。结果显示:山区是冰雹云发源地,冰雹云翻山移动方向会突转,移速会增强,在山脚和关键地形地带易增强或降雹,呈现出雹击带长、雹云发展时强时弱特征。

Based on the hail suppression operation data of artificial weather in Aksu area from 2015 to 2019,the monthly and daily variation of hail and the distribution of hail falling area are obtained.Combined with the geographical characteristics,the spatial distribution characteristics of hail cloud in Aksu area under the effect of terrain are analyzed:the mountain area is the source of hail cloud,the direction of hail cloud over the mountain will suddenly turn,and the moving speed will increase,especially at the foot of the mountain and the key terrain The zone is easy to strengthen or hail,showing the characteristics of long hail strike zone and strong and weak hail cloud development.