摘要
通过对大同地区1970—2002年8个气象观测站的沙尘暴资料进行研究分析,得出其时空分布特征和主要影响系统。结果表明:大同地区沙尘暴西部多东部少,春季是高发期;20世纪70—80年代多,出现沙尘暴天气的主要影响系统是冷锋和气旋。
In this paper, the author found out features of spacetime distribution and dominant system, through analysis＇ on sandstorm data of 8 meteorologic observation stations of Datong from 1970 to 2002. The results showed that the sandstorm of western was more than eastern one. Spring was high-incidence season; the sandstorm occurred frequently in 1970＇s and 1980＇s, obviously reduced in 1990＇s, increased again in 21th century. Dominant systems of sandstorm in Datong were cold front and cyclone.
出处
《科技创新与生产力》
2010年第4期69-71,共3页
Sci-tech Innovation and Productivity
关键词
沙尘暴
时空分布
影响系统
sandstorm
spacetime distribution
dominant system
