| 首都机场夏季雷暴气候特征及其变化规律 |
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| 引用本文： | 丁叶风,李秀连,田勇,谢坤. 首都机场夏季雷暴气候特征及其变化规律[J]. 气象科技, 2009, 37(4): 420-424 |
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| 作者姓名： | 丁叶风 李秀连 田勇 谢坤 |
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| 作者单位： | 民航华北空管局气象中心,北京,100621;南京大学大气科学系,南京,210093 |
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| 摘 要： | 利用1958～2007年北京首都机场夏季雷暴逐日统计资料, 分析了50年来首都机场雷暴气候的时间分布特征,并利用小波分析方法研究了首都机场7～9月雷暴的年际和年代际变化规律.结果表明:近50年来,首都机场7～9月雷暴分布存在着比较明显的日变化,雷暴总日数呈下降趋势,尤其是7、8月的雷暴日数下降最为明显;7～9月雷暴日数存在着明显的1～2年、4～6年和准10年的周期性振荡,其中1～2年周期的振荡最为显著,但准10年的周期性振荡也比较明显.
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| 关 键 词： | 小波分析 雷暴 气候特征 首都机场 |
| 收稿时间： | 2008-05-21 |
| 修稿时间： | 2008-09-03 |
Climatic Characteristics and Variability of Summer Thunderstorms at Capital Airport |
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| Ding Yefeng,Li Xiulian,Tian Yong and Xie Kun. Climatic Characteristics and Variability of Summer Thunderstorms at Capital Airport[J]. Meteorological Science and Technology, 2009, 37(4): 420-424 |
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| Authors: | Ding Yefeng Li Xiulian Tian Yong Xie Kun |
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| Affiliation: | 1 Weather Center;North China Regional ATMB of CAAC;Beijing 100621;2 Department of Atmospheric Sciences;Nanjing University;Nanjing 210093 |
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| Abstract: | The daily thunderstorm data from the Capital Airport(Beijing) from 1958 to 2007 are used to perform the analysis of the temporal variations of summer thunderstorms,and the wavelet analysis is used to disclose its inter-annual and inter-decadal variations.The results show that there was obvious daily variation in thunderstorm weather from July to September in the recent 50 years;there was a decline tendency in thunderstorm days,especially in July and August;obvious 1 to 2,4 to 6,and quasi-10 year oscillation... |
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| Keywords: | wavelet analysis thunderstorm climatic characteristic Capital Airport |
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