Vertical Distribution of Clouds in Northern Qilian Mountains
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Abstract:
Based on the radiosonde data of Dunhuang, Jiuquan, Zhangye and Minqin stations from 2014 to 2019, the characteristics of cloud vertical structure in the northern Qilian Mountains are analyzed. The results show that the occurrence frequency of clouds in the northern Qilian Mountains is 20% to 40% in the whole year, and the occurrence frequency of singlelayer clouds is higher than that of multilayer clouds, which are mainly 2layer clouds; the occurrence frequency of clouds is higher in summer and lower in winter, the frequencies of singlelayer and 2layer clouds in summer are close, and the occurrence frequency of singlelayer clouds is much higher than those of 2layer clouds and 3layer clouds in spring, autumn and winter; the thickness of the lower layer clouds of 2layer clouds is obviously greater than that of the upper layer clouds, and the thickness of the clear air interlayer between the bottom layer and the middle layer of the 3layer clouds is greater than that between the middle layer and the top layer; cloud heights in the northern Qilian Mountains change significantly in different seasons, higher in summer and lower in winter.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.