摘要
利用1969—2008年阿勒泰地区吉木乃、哈巴河、布尔津、阿勒泰市、福海、富蕴、青河7个气象站雷暴天气的观测资料,分析了雷暴活动的时空分布特征。结果表明：阿勒泰各地年平均雷暴日数为12~24 d,西部比东部多,北部比南部多,高山地区较多,平原地区较少;雷暴天气集中出现在5—8月,各地雷暴的年变化都为单峰型,高峰值在7月;各地雷暴日数年代际变化均为线性减少型;小波分析显示出各地雷暴年变化都存在16 a的震荡周期;雷电灾害随着社会经济的发展在加重。
Using thunderstorm weather observational data from 1969 to 2008 in the Altai region that including seven meteorological stations,Jimunai,Habahe,Buerjin,Aletaishi,Fuhai,Fuyun and Qinghe meteorological station,we analyzed the spatial-temporal characteristics of thunderstorms in the area.The results showed that annually average occurrence of thunderstorms were from 12 to 24 days.The thunderstorm days were more in the western than eastern,more in the northern than southern,and more in alpines than plains.The thunderstorm mostly appeared from May to August.The intra-annual variation of thunderstorm days took on single-peak type,and July was of the high value period generally.The tendency of thunderstorm occurrence change was linearly reducing type.Wavelet analysis revealed the period of 16 years.Lightning disaster had been increasing with social and economic developments.
出处
《沙漠与绿洲气象》
2012年第3期58-61,共4页
Desert and Oasis Meteorology
关键词
雷暴
气候特征
趋势
thunderstorms
climatic feature
trend
