摘要
利用托克逊县1971—2009年的大风资料进统计分析,结果表明:近39 a来托克逊县大风呈明显减少趋势,3—10月大风日数相对较多。全年主导风向为W—NW,主导风向频率44%;次多风向E—SE,频率是18%。大风多在午后(14时之后)起风,18时前后是大风多发时段,在16—19时起风355次,占总次数的58.6%。
Using the data of gale in Tuokexun County from 1971 to 2009,the variation characteristics of gale were analyzed,the results showed that the gale＇s times decrease obviously in recently 39 years,and the gale happened mainly from Mar.to Nov.,the prevailing wind direction is west to northwest,the frequency of which is 44%,and the secondary wind direction is east to southeast with frequency of 18%.Gale often starts after 14 o＇clock,most frequently at 18 o＇clock and happened 355 times from 16 to 19 o＇clock,which is 58.6% of the total times of gale.
出处
《沙漠与绿洲气象》
2010年第6期27-29,共3页
Desert and Oasis Meteorology
关键词
托克逊
大风
气候特征
Tuokexun County
gale
Climate characteristic
