新疆哈巴河县1961—2010年大风天气统计分析

Climatic Feature of Gale Weather from 1961 to 2010 at Habahe County in Xinjiang

对1961—2010年哈巴河县大风天气资料进行统计分析。结果表明:20世纪60—70年代哈巴河县为大风天气的多发年代,90年代中期后呈明显减少趋势,2003年之后年大风日数稳定在30 d左右;春季大风最多,冬季次之,夏秋季最少;大风出现最多的月份是4—5月,11月—次年3月次之,其他月份较少;平原东部地区大风最多,西部次之,丘陵和山区基本无大风;夏秋季多偏西风,冬春季多偏东风,且偏西风风速大于偏东风风速,最大风速多为偏西风。

The windy weather characteristics were analyzed based on the meteorological data from Habahe county from 1961 to 2010.The results show that the windy weather often appears from 1960s to 1970s and its occurrence obviously decreases since 1990s.The number of annual windy days is about 30 days after 2003,which is the most in spring, less in winter and least in summer and autumn.The windy weather most often appears from April to May, especially in the morning, followed by from November to March. There is not obvious difference among the other months. The windy weather occurs most often in east areas in the plain, followed by west areas, and the least in mountainous areas.Westerly wind often happens in summer and autumn,and easterly wind is in winter and spring.The wind speed of westerly wind is greater than that of easterly wind.The maximum wind speed often comes from westerly wind.