| 高山区冰川突发洪水混沌机制研究 |
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| 引用本文： | 陈亚宁,杨思全.高山区冰川突发洪水混沌机制研究[J].自然灾害学报,1999,8(1):48-52. |
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| 作者姓名： | 陈亚宁 杨思全 |
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| 作者单位： | 中国科学院新疆生态与地理所!新疆乌鲁木齐８３００１１(陈亚宁)，中国科学院新疆生态与地理所!新疆乌鲁本齐８３００１１(杨思全) |
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| 基金项目： | 中国科学院“西部之光”资助项目 |
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| 摘 要： | 首先，介绍了重构相空间技术，并揭示了混沌特性的主要定量指标，即关联分维数Ｄ２，李雅普诺夫（Ｌｙａｐｕｎｏｖ）指数和柯尔莫奇诺夫（Ｋｏｌｏｍｏｇｏｒｏｖ）熵。然后，对叶尔河冰川突发洪水这一典型自然系统的无序现象，从洪水时序列出发，通过对上述指标的分析，讨论了高山区冰川突发洪水过程和形成的混沌机制，表明该类洪水时间序列具有混沌动力系统的一些特征。
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| 关 键 词： | 冰川 突发洪水 混沌 时间序列 |
RESEARCH ON CHAOTIC MECHANISMOF GLACIER OUTBURST FLOODS |
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| CHEN Ya-ning, YANG Si-quan.RESEARCH ON CHAOTIC MECHANISMOF GLACIER OUTBURST FLOODS[J].Journal of Natural Disasters,1999,8(1):48-52. |
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| Authors: | CHEN Ya-ning YANG Si-quan |
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| Abstract: | Firstly, the method of rebuilding the time series imbedding space is introduced, and themain indecies including correlation dimension D, Lyapunov exponent and Kolomogorov entropy, whichcharacterize the chaotic behavior, are described. Then, taking glacier outburst floods of Yarkand River,a typical inordinate phenomenon of natural system, as an example, the process and mechanism of glacier outburst floods in high mountain area are investigated from a time series of the floods. The resultshows that the time series of the floods has some characteristics of chaotic dynamic system. |
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| Keywords: | glaciers outburst floods chaos time series |
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