摘要
利用西昌探空站2014年高空风资料,对大气边界层内距地300、600及900 m的风向频率、平均风速按月、季度进行统计计算,以此分析西昌地区大气边界层风场特征。结果表明:西昌地区大气边界层内风随季节变化较大。对于风向:夏季,各高度上通常以SSW和N为主导并有多个次多风向;冬、春、秋季,300 m高度上主要是偏南风,600、900 m高度上风向主要集中在SSW方向上;风速最大出现在春季,最小在夏季。
Based on Xichang sounding station＇s high altitude wind data in 2014, the wind direction frequency and monthly and quarterly average wind speed in the atmospheric boundary layer within a distance of 300、600 and900 m is statistics calculated to analyze the characteristic of Xichang＇s atmospheric boundary layer wind field. The results shows that： the wind in xichang＇s atmospheric boundary layer changes greatly with the seasons. The wind： in summer, the wind direction is not single and usually dominated by SSW and N at each height. In winter, spring and autumn, there＇s south wind in the 300 m high while there mainly is SSW wind in 600、900 m high winds. The wind speed is biggest in spring, is smallest in summer.
出处
《西昌学院学报（自然科学版）》
2015年第4期55-58,62,共5页
Journal of Xichang University(Natural Science Edition)
关键词
西昌
大气边界层
风场特征
Xichang
atmospheric boundary layer
features of wind
