A new approach to a hydrochemical study of groundwater flow

Ochsenkuhn, KM; Kontoyannakos, J; Ochsenkuhn-Petropulu, M

dc.contributor.author	Ochsenkuhn, KM	en
dc.contributor.author	Kontoyannakos, J	en
dc.contributor.author	Ochsenkuhn-Petropulu, M	en
dc.date.accessioned	2014-03-01T01:12:33Z
dc.date.available	2014-03-01T01:12:33Z
dc.date.issued	1997	en
dc.identifier.issn	0022-1694	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12133
dc.subject	Cluster Analysis	en
dc.subject	Groundwater Flow	en
dc.subject	Statistical Approach	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.classification	Water Resources	en
dc.subject.other	Cluster analysis	en
dc.subject.other	Hydrochemistry	en
dc.subject.other	Boreholes	en
dc.subject.other	Correlation methods	en
dc.subject.other	Hydraulic conductivity	en
dc.subject.other	Sampling	en
dc.subject.other	Statistical methods	en
dc.subject.other	Vectors	en
dc.subject.other	Water analysis	en
dc.subject.other	Water wells	en
dc.subject.other	Z transforms	en
dc.subject.other	Groundwater flow	en
dc.subject.other	boreholes	en
dc.subject.other	conductivity	en
dc.subject.other	flow	en
dc.subject.other	groundwater	en
dc.subject.other	wells	en
dc.subject.other	groundwater chemistry	en
dc.subject.other	groundwater flow	en
dc.subject.other	hydrochemical parameters	en
dc.subject.other	multivariate analysis	en
dc.subject.other	Greece, Euboea Island, Vasilikon Basin	en
dc.title	A new approach to a hydrochemical study of groundwater flow	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0022-1694(96)03218-0	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0022-1694(96)03218-0	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	A statistical approach based on a multivariate correlation Of various hydrochemical parameters has been developed for the interpretation of groundwater how lines of the Vasilikon basin in the southern part of the central area of Euboea island in Greece. Water samples, mainly from wells but also from boreholes, were collected and analysed for 44 hydrochemical parameters, from which the conductivity, dissolved O-2, Ca, Mg, chloride, acid-consuming capacity, base-consuming capacity, Si, Fe and As were selected for the evaluation. After normalization of each parameter by z-transformation - to equalize the influence of parameters with small and large variations - a classification of the sampling stations was obtained by cluster analysis. By the use of the same z-transformed data the degree of similarity of element-concentration (z-transformed) profiles between the central sampling points and the surrounding sampling points was investigated. The resulting radially distributed correlation vectors were reduced to the main axis of an ellipse, so that flow lines or trend of groundwater movements became visible. The results of this method were also compared with hydrogeological observations of the Vasilikon basin.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Hydrology	en
dc.identifier.doi	10.1016/S0022-1694(96)03218-0	en
dc.identifier.isi	ISI:A1997XM20300004	en
dc.identifier.volume	194	en
dc.identifier.issue	1-4	en
dc.identifier.spage	64	en
dc.identifier.epage	75	en