沙漠与绿洲气象2011，Vol.5Issue(4)：26-30,5.
塔克拉玛干沙漠一次强沙尘暴的辐射特性及气象要素分析
Analysis on Characteristics of Radiation and Meteorological Elements during a Strong Sandstorm Passing Taklimakan Desert
摘要
Abstract
Using the remote sensing data and the observed data from the 80m meteorological tower in the hinterland of Taklimakan desert, we monitored the process of a strong sandstorm passing through Taklimakan desert hinterland, and analyzed the evolution characteristics of shortwave radiation, wind velocity, wind direction, temperature, humidity and pressure in detail in the nearsurface.The results indicated that, at preand post sandstorm periods, the total radiation and reflective radiation decreased obviously, and the peak time lagged. The daily range of shortwave corresponded with wind speed, and was controlled by the turbulence. The sandstorm not only seriously influenced the visibility, but also the total radiation, As a result it affected the climate. The wind direction changed several times before the sandstorm. The wind speed decreased at the change time of wind direction, it increased after that. The wind velocity increased rapid｜y and the wind direction was stable when the sandstorm passing. Before the onset of sandstorm, the air mass was hot and under the control of low pressure. When the sandstorm passing by, the air mass became cold and wet, and the pressure increased sharply. The weather of sandstorm was a process in which temperature decreased, and humidity and pressure increased.关键词
塔克拉玛干沙漠/沙尘暴/短波辐射/气象要素Key words
Taklimakan desert/sandstorm/shortwave radiation/meteorological elements分类
天文与地球科学引用本文复制引用
李帅,胡列群,何清,胥志德,吴新萍..塔克拉玛干沙漠一次强沙尘暴的辐射特性及气象要素分析[J].沙漠与绿洲气象,2011,5(4):26-30,5.基金项目
新疆气象局青年基金（201036）,公益性行业科研专项（GYHY201006012）,国家自然科学基金（40775019）联合资助. （）
