Title: Study on the evolutionary laws of low flows in Guangdong province
Abstract: The contents of the study on the evolutionary laws of low flows is abroad, such as the time low flow happened, frequency analysis, trend and cycle analysis, and so. But this study is not more in Guangdong province, so based on the characteristics of water, the law of the time when low flow happen and the frequency analysis are studied in this paper. Firstly, taking the series of the minimum monthly runoff from 8 control water stations which represent the characteristics of water systems in Guangdong province, the evolution law of low flows has been analyzed, including the month that the minimum monthly runoff happen and its causes and affects. While based on comparing four typical theoretical frequency distributions that are logarithmic normal distribution, Pearson—Ⅲ distribution、logarithmic Pearson—Ⅲ distribution and Gumbel distribution, the result shows that the Pearson—Ⅲ distribution is the best of the type of the low flows frequency distribution in Jiu Zhou-jiang station which is represented the whole system in Guangdong Province.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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