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	Applications of grey relational method to river environment quality evaluation in China
	Xia J.
	2009
关键词	Grey relational method (GRM) Triangle relational degree (TRD) Water quality evaluation (WQE) Water quality index (WQI) fuzzy synthetic evaluation linear-programming approach water-quality uncertainty prediction system recognition model index sets
英文摘要	Grey relational method (GRM) has emerged in recent years as a new too] to deal with problems of small samples and insufficient information. Inexact data, short sample and incomplete hydrological data in water research are very commonly encountered. Statistical, fuzzy set and rough set theories have been applied to deal with uncertainty problems in hydrology. In this paper, we propose a new algorithm for grey relational degree and apply it to water environment quality evaluation of the Han Jiang River, one of the major branches of the Yangtze River in China. Our proposed method possesses some essential and desirable properties which ensure that translational properties of relational degree do not exist and it will give a more precise and finer grading of the overall water quality. Our empirical applications of GRM have demonstrated that GRM is a useful tool for analysis of inexact data, short sample and incomplete hydrological data. (C) 2009 Elsevier B.V. All rights reserved.
出处	Journal of Hydrology
卷	379
期	3-4
页	284-290
收录类别	SCI
语种	英语
ISSN号	0022-1694
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/23782]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Xia J.. Applications of grey relational method to river environment quality evaluation in China. 2009.

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