| 华北地区风速变化的分析 |
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| 引用本文： | 荣艳淑,梁嘉颖.华北地区风速变化的分析[J].气象科学,2008,28(6):655-658. |
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| 作者姓名： | 荣艳淑 梁嘉颖 |
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| 作者单位： | 河海大学水文水资源学院,南京,210098 |
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| 基金项目： | 国家自然科学基金项目
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河海大学创新基金
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| 摘 要： | 本文利用华北地区1957-2006年共计50a 104个气象观测站的实测风速,分析了该地区年平均风速的空间分布特征、逐年代变化特征、近50a来的变化趋势以及风速突变现象,研究表明,华北地区风速呈西北和东南地区偏大、东北一西南向风速偏小的分布特征;风速有减小趋势,大部分台站风速减小趋势达到了-0.2～-0.5(m·s-1)/10a;华北南部风速最先开始突变,西部次之,北部和中部没有检测到突变时间.
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| 关 键 词： | 平均风速 线性趋势 突变分析 |
| 收稿时间： | 7/7/2008 12:00:00 AM |
Analysis of variation of wind speed over north China |
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| Rong Yanshu and Liang Jiaying.Analysis of variation of wind speed over north China[J].Scientia Meteorologica Sinica,2008,28(6):655-658. |
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| Authors: | Rong Yanshu and Liang Jiaying |
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| Institution: | Rong Yanshu Liang Jiaying(College of Hydrology , Water Resources,Hohai University,Nanjing 210098) |
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| Abstract: | In this paper,the characteristics of wind speed variations,including distribution of annual mean wind speed,decadal variability,distribution of linear trend and sudden change of wind speed,were investigated based on the observed monthly mean wind speed in 104 gauges,located quite uniformly over the territory of north China.The results showed that as far as distribution of wind speed was concerned,there is higher wind speed in the northwestward and southeastward of north China and smaller wind speed in the n... |
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| Keywords: | Mean wind speed Linear trend Sudden change analysis |
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