| 吉林西部气象干旱的多标度分形特征 |
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| 引用本文： | 陈社明,卢文喜,罗建男,康柱.吉林西部气象干旱的多标度分形特征[J].吉林大学学报(地球科学版),2013,43(1):245-250. |
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| 作者姓名： | 陈社明 卢文喜 罗建男 康柱 |
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| 作者单位： | 1.吉林大学地下水资源与环境教育部重点实验室，长春130021;
2.中国建筑材料工业地质勘查中心吉林总队，长春130033 |
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| 基金项目： | 国家自然科学基金项目(41072171) |
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| 摘 要： | 选用标准化降水指数作为气象干旱指标，通过引入多标度分形理论，运用乘法级联模型，以吉林西部6个气象站点1957年1月-2010年10月的月降水量数据为基础，对吉林西部气象干旱的多标度性质进行分析。研究结果表明，吉林西部气象干旱的发生在时间尺度上均具有多标度分形特征，但在不同站点多标度分形的强度不同，表现出一定的空间差异性。其强弱次序为：长岭<通榆<白城<前郭<扶余<乾安。
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| 关 键 词： | 吉林西部 干旱 标准化降水指数 多标度分形特征 |
| 收稿时间： | 2012-04-03 |
Multifractal Characteristic of Meteorological Drought in Western of Jilin Province |
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| Chen Sheming,Lu Wenxi,Luo Jiannan,Kang Zhu.Multifractal Characteristic of Meteorological Drought in Western of Jilin Province[J].Journal of Jilin Unviersity:Earth Science Edition,2013,43(1):245-250. |
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| Authors: | Chen Sheming Lu Wenxi Luo Jiannan Kang Zhu |
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| Institution: | 1.Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun130021,China;
2.Jilin Team of Geological Survey Center of China Building Materials Industry, Changchun130033, China |
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| Abstract: | Through the introduction of multifractal analysis theory and using the multiplication cascade model, we analyze the multifractal characteristic of the meteorological drought by choosing standardized precipitation index as the meteorological drought index, according to the monthly precipitation data of six meteorological stations in western Jilin Province from January 1957 to October 2010. The results show that the occurrences of meteorological drought in western Jilin Province have multifractal characteristic on the time scales, but the multifractal intensity was different in stations, which showed a certain spatial difference. The multifractal characteristics increase with the order: Changling
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| Keywords: | western of Jilin Province drought standardized precipitation index multifractal characteristic |
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