| 天山麦兹巴赫冰川湖突发性洪水分形特征研究 |
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| 引用本文： | 陈亚宁 杨思全. 天山麦兹巴赫冰川湖突发性洪水分形特征研究[J]. 冰川冻土, 1999, 21(3): 253-256 |
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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研究所!新疆乌鲁木齐830011，1中国科学院新疆生态与地理研究所!新疆乌鲁木齐830011，2西北大学，陕西西安710069，中国科学院新疆生态与地理研究所!新疆乌鲁木齐830011，中国科学院新疆生态与地理研究所!新疆乌鲁木齐830011 |
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| 摘 要： | 冰川湖突发性洪水具有强烈的随机性和不确定性。文章以天山麦兹巴赫冰川湖突发洪水为例。应用其近４０ａ来实测的３７次冰川突发洪水的洪峰流量等实测资料，从洪水时间序列出发，应用非线性动力系统重构技术，探讨了冰川湖突发洪水的分形特征，计算得出了关联分维数Ｄ２和Ｋｏｌｏｍｏｇｏｒｏｖ熵。结果表明，冰川湖突发洪水的时序分布具有分形特征，是其内在的非线性动力系统演化的结果。
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| 关 键 词： | 冰川湖 突发性 洪水 麦兹巴赫冰川湖 分形特征 |
A Study of the Fractal Characteristics of Jkulhlaups from the Lake Mertzbakher, Tianshan |
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| CHEN Ya-ning ,,YANG Si-quan ,LI Wei-hong. A Study of the Fractal Characteristics of Jkulhlaups from the Lake Mertzbakher, Tianshan[J]. Journal of Glaciology and Geocryology, 1999, 21(3): 253-256 |
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| Authors: | CHEN Ya-ning YANG Si-quan LI Wei-hong |
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| Affiliation: | CHEN Ya-ning 1,2,YANG Si-quan 1,LI Wei-hong 1 |
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| Abstract: | Jkulhlaups have stochastic feature and uncertainty Based on the statistical data of 37 peak discharges of Jkulhlaups from the Lake Mertzbakher of Tianshan Mountains in recent 40 years, the fractal characteristics of the Jkulhlaups are analyzed from a time series of the Jkulhlaups, and the correlation dimension (D 2) and Kolomogorov entropy are calculated by using the methods of nonlinear dynamic system rebuilding The experimental results show that the temporal distribution of the Jkulhlaups has fractal characteristics and the complex hydrological phenomena of Jkulhlaups may result from the evolution of inherent nonlinear dynamic system The obtained conclusions will be a scientific basis for establishing the time-series forecast model of Jkulhlaups |
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| Keywords: | Jkulhlaups Lake Mertzbakher fractal characteristics |
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