呼伦贝尔雷暴的时空分布特征分析

Analysis on Spatial and Temporal Distribution Characteristics of Hulunbeier Thunderstorm

利用呼伦贝尔16个气象站1971～2008年逐日气象观测资料对呼伦贝尔地区雷暴的时间、空间分布特征和日变化规律进行了分析。结果表明,呼伦贝尔地区雷暴天气38年来在波动中呈减少趋势,年平均雷暴日牧区偏少,林区偏多;呼伦贝尔地区雷暴集中发生在5～9月,其中7月雷暴日最多。

The lightning frequency,spatial distribution and variety of thunderstorm were studied according to the daily meteorological observation reference of 16 meteorological observation stations in Hulunbeier from 1971 to 2008.The results indicated that the thunderstorm of Hulunbeier showed a trend of declining in fluctuation in last 38 years.Pastoral areas have less thunderstorm days than forest zones.Thunderstorms in Hulunbeier are concentrated in May-September,most in July.