| 博州雷暴的时间变化和周期 |
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| 引用本文： | 刘 军,陈万江,杨 新.博州雷暴的时间变化和周期[J].新疆气象,2009,3(2):35-37. |
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| 作者姓名： | 刘 军 陈万江 杨 新 |
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| 作者单位： | 刘军,杨新,LIU Jun,YANG Xin(新疆防雷减灾中心,新疆,乌鲁木齐,830002);陈万江,CHEN Wan-jiang(温泉县气象局,新疆,温泉,833500)
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| 摘 要： | 利用1961--2000年博州4个气象站雷暴天气的观测资料,分析了雷暴的气候特征.分析表明,博州多年年雷暴日数20-52d,年雷暴日数平原地区较少,高山地区较多,雷暴天气集中出现在夏半年5-8月.温泉雷暴天气的高发时段15-21时,精河高发时段17-23时,阿拉山口高发时段16-24时.温泉、精河和阿拉山口雷暴持续时间以30min为主.博乐和阿拉山口40a内年雷暴日数线性减少,两站年雷暴日数在1979年发生突变.博州雷暴日数年际变化具有6～9a的震荡周期.
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| 关 键 词： | 雷暴 变化趋势 突变 周期 |
The Changes of Thunderstorms Time and Cycle in Bole Region |
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| LIU Jun,CHEN Wan-Jiang and YANG Xin.The Changes of Thunderstorms Time and Cycle in Bole Region[J].Bimonthly of Xinjiang Meteorology,2009,3(2):35-37. |
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| Authors: | LIU Jun CHEN Wan-Jiang and YANG Xin |
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| Institution: | Xinjiang lightning protection center, Urumqi 830002, China;Wenquan Meteorological Bureau, Wenquan 833500, China;Xinjiang lightning protection center, Urumqi 830002, China |
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| Abstract: | This paper analyzed the climatic characteristics of thunderstorms that based the observatory data by four weather stations from 1961 to 2000. The analysis showed that the average annual number of days of thunderstorms is 20 to 52 days in Bole Region. The numbers of thunderstorms days are less in the plain areas and more in mountain areas. Thunderstorm weather focused in summer from May to August. The high-frequency time of thunderstorm is at3pm. to 9pm , 5p.m. to 11p.m, And 4p.m. to midnight in Wenquan, Jinghe and Alashankou respecitvely. Thunderstorms in Wenquan, Alashankou and Jinghe usually lasted 30 minutes. The thunderstorms days have reduced in 40 years in Bole and Alashankou, and the abrupt change happened in 1979. The inter-annual change of the number of thunderstorms days has the oscillation cycle with 6 to 9-year. |
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