水文相似度及其应用

Hydrology similarity degree and its application

本文分别从流域下垫面、河网发育情况、产汇流影响因素的角度,探索性的提出了几个水文相似性评定指标,并采用层次分析法计算每种水文相似性指标在计算水文相似程度中的权重。以江西雨量站网密度实验区中的朗口和银山流域为研究对象,实例计算了两个流域的水文相似程度,结果证明水文相似度有助于定量化研究水文相似性问题。

The indexes for assessing the hydrology similarity were proposed based on the influencing factors such as the underlying surface of basin, evolution of river network system and production of runoff. In order to calculate similarity degree, the analytic hierarchy process was adopted to calculate the weights of the similarity factors. The hydrologic similarity degrees of two basins in the Jiangxi Province, China, were obtained according to the data of the stationing and fieldwork of rain-gange network density experimental region. The result indicates that the similarity degree is very useful for quantitative study on hydrological similarity.