长江科学院院报Issue(8)：22-25,39,5.DOI:10.3969/j.issn.1001-5485.2015.08.004
基于正态模糊线性回归确定河流横向扩散系数
Determining the Transversal Diffusion Coefficient of River Through Normal Fuzzy Linear Regression
摘要
Abstract
To explore the method of calculating river’s diffusion coefficient in the presence of pollution,a normal fuzzy linear regression model was built,and through the membership function of fuzzy set,the ranges of water quali-ty parameters (transversal diffusion coefficient and average flow velocity)in the presence of different confidence levels were calculated.The model was built based on linear graphic method,and the tracer test data of water mass was analysed based on fuzzy numbers.The water quality parameters calculated by this model were very close to the real values,which accounts for the feasibility and rationality of this model.It could also reflect the uncertainty of river system and the effects of other uncertainties in practice.关键词
模糊线性回归/正态模糊数/隶属函数/横向扩散系数/平均流速Key words
fuzzy linear regression/normal fuzzy number/membership function/transversal diffusion coefficient/average flow velocity分类
天文与地球科学引用本文复制引用
张转,常安定,王媛英,王晓晨..基于正态模糊线性回归确定河流横向扩散系数[J].长江科学院院报,2015,(8):22-25,39,5.基金项目
中央高校基本科研业务费专项资金资助项目 （）
