| 北京地区沙尘天气的气候特征分析 |
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| 引用本文： | 李青春,谢璞,吴正华.北京地区沙尘天气的气候特征分析[J].气象科技,2003,31(6):328-333. |
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| 作者姓名： | 李青春 谢璞 吴正华 |
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| 作者单位： | 1. 北京城市气象科学研究所
2. 北京市气象局,北京,100089 |
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| 基金项目： | 科技部社会公益专项项目“北京地区风沙天气监测、预测技术研究”资助 |
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| 摘 要： | 利用1954～2001年北京地区(20个气象站)逐月沙尘资料，重点对北京地区沙尘天气的空间分布特征、沙尘日数的年际变化规律、沙尘日数的月变化进行分析；分析了近3年北京地区出现的沙尘天气特点及成因；对近48年的沙尘天气出现日数变化规律进行了小波分析，浮尘天气有12～14年超长周期和2～4年短周期，扬沙天气有8-12年超长周期。
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| 关 键 词： | 沙尘天气 浮尘 气候特征 小波分析 |
| 修稿时间： | 2003年6月30日 |
Synoptic and Climatological Analysis of Sand-Dust Storms in Beijing Area |
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| Li Qingchun,Xie Pu,Wu Zhenghua.Synoptic and Climatological Analysis of Sand-Dust Storms in Beijing Area[J].Meteorological Science and Technology,2003,31(6):328-333. |
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| Authors: | Li Qingchun Xie Pu Wu Zhenghua |
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| Abstract: | Based on the surface meteorological observation date from 20 stations in the Beijing area from 1954 to 2002, an investigation is conducted of the temporal and spatial distribution characteristics, especially the long term trend and variation of sand dust storms, and the monthly variation in the Beijing area in recent 48 years. Also analyzed are the characteristics and causes of sand dust storms in Beijing in recent three years. Some variation regularities of sand dust storms are analyzed through wavelet analysis. It is found that there is an extra long period of 12-14 years and a short period of 2-4 years in floating dust days; and there is an extra long period of 8-12 years in fly sand days |
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| Keywords: | sand dust storm climatic characteristics wavelet analysis |
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