| 几种频率分布线型对新疆天山北坡洪水适应性研究 |
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| 引用本文： | 田万荣,朱健.几种频率分布线型对新疆天山北坡洪水适应性研究[J].干旱区地理,2000,23(4):353-357. |
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| 作者姓名： | 田万荣 朱健 |
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| 作者单位： | 1. 新疆昌吉水文水资源勘测大队,昌吉,831100
2. 新疆吐鲁番水文水资源勘测大队,吐鲁番,838000 |
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| 摘 要： | 由于水文现象的复杂性及其资料的有限性，至今尚无法在理论上确定洪水峰量究竟属何种频率分布。目前选择线型均是依据实测资料，以曲线与经验分布的拟合优劣作标准来确定线型。通过四种频率线型，对新疆天山北坡中小河流洪水进行拟合分析，从11个站的拟合情况来看，有9个站用P-Ⅲ,草拟合结果最好，占整个参加分析站点的82％，因此，可以认为P－Ⅲ型曲线较适应于新疆天山北坡河流洪水分析。
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| 关 键 词： | 洪水 频率分布线型 新疆 水文频率 数理统计 |
| 修稿时间： | 2000年3月6日 |
STUDY ON SUITABILITY OF SOME CURVE TYPES OF FREQUENCY DISTRIBUTION IN ANALYZING FLOODS OCCURRING ON THE NORTHERN SLOPE OF THE TIANSHAN MOUNTAINS, XINJIANG |
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| TIAN Wan-rong,ZHU Jian.STUDY ON SUITABILITY OF SOME CURVE TYPES OF FREQUENCY DISTRIBUTION IN ANALYZING FLOODS OCCURRING ON THE NORTHERN SLOPE OF THE TIANSHAN MOUNTAINS, XINJIANG[J].Arid Land Geography,2000,23(4):353-357. |
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| Authors: | TIAN Wan-rong ZHU Jian |
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| Abstract: | Over a long period of time, both domestic and foreign hydrologists have studied the curve types of flood frequency. However, it can not be theoretically determined that what kind of frequency distribution the peak discharge belongs to. In flood frequency analysis, all the estimated results, including the various statistical parameters, designed peak discharge of the various flood frequency and the selected curve types of frequency, are obtained based on the flood data collected during a short period. Thus, the considerable errors (including the stochatstic, calculated, and systematic errors exist in the estimated results. In this paper, 4 curve types of flood frequency are selected for fitting analysis of floods occurring in the mid-small streams on the northern slope of the Tianshan Mountains. The fitted results are ideal at 9 hydrometric stations among 11 in total. |
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| Keywords: | flood curve type of frequency distribution Xinjiang North slope of Tianshan |
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