【摘要】 重点分析了祁连山下肃南的天气气候特点,探讨在祁连山区中段进行人工增雨(雪)的有利天气条件及其日数。结果表明,祁连山区中段的降水量远远大于河西盆地;降水量随海拔高度增加而增大;有利人工增雨(雪)的年平均日数有146.4 d;一年中3~10月每月有雨(雪)日在10 d以上;5~8月以对流性降雨为主。更多还原

【Abstract】 In this paper,the climate and weather characteristics in Su’nan station which is located at the foot of the mid-section of Qilian mountain are analyzed in order to find the available weather patterns and days for weather modification.Results show that the annual precipitation in mid-section of Qilian mountain is much larger than that in Hexi basin,and the precipitation increases with the height above sea level,the annual average days available for weather modification are 146.4 d,the monthly rainy(snowy) days are more than 10 d from March to October in a year,it is convective rainfall mainly in May to August.更多还原