| 近50年来吉林省气温和降水变化趋势分析 |
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| 引用本文： | 董满宇,吴正方. 近50年来吉林省气温和降水变化趋势分析[J]. 东北师大学报(自然科学版), 2007, 39(3): 114-119 |
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| 作者姓名： | 董满宇 吴正方 |
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| 作者单位： | 东北师范大学城市与环境科学学院,吉林,长春,130024;东北师范大学城市与环境科学学院,吉林,长春,130024 |
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| 基金项目： | 国家自然科学基金资助项目(40571022) |
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| 摘 要： | 利用近50年来吉林省20个气象站1953—2001年的气温及降水观测数据,采用DB16正交小波分析、非参数统计检验Mann-kendall法对气温与降水的变化趋势进行了研究.结果表明:近50年来,吉林省气温存在明显的增温趋势,降水呈现减少趋势;在不同的时间尺度上,气温、降水的变化趋势存在差异,尺度越大趋势性反应的越明显;气温、降水的年季变化趋势在空间分布上有所不同.
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| 关 键 词： | 吉林省 气温 降水 变化趋势 |
| 文章编号： | 1000-1832（2007）03-0114-06 |
| 修稿时间： | 2007-03-29 |
Variations trend of annual mean temperature and precipitation for the last 50 years in Jilin Province |
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| DONG Man-yu,WU Zheng-fang. Variations trend of annual mean temperature and precipitation for the last 50 years in Jilin Province[J]. Journal of Northeast Normal University (Natural Science Edition), 2007, 39(3): 114-119 |
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| Authors: | DONG Man-yu WU Zheng-fang |
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| Affiliation: | College of Urban and Environmental Sciences,Northeast Normal University,Changchun 130024,China |
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| Abstract: | Using the data of temperature and precipitation from 20 meteorological stations for the last 50 years in Jilin Province,this paper makes the analysis of change trend of temperature and precipitation by DB16 orthogonal wavelet method and non-parametric statistic test method of Mann-kendall.The result shows that there is an obvious increasing trend of the annual average temperature and a decreasing in precipitation for the last 50 years in Jilin Province.At the different time scales,the change trend of temperature and precipitation is different between year and reason,the larger time scale,the more evident change trend can be discovered.The change trend of temperature and precipitation during year and reason is different in the spatial distribution. |
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| Keywords: | Jilin Province temperature precipitation change trend |
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