Assessment of hydrogeochemical processes in a coastal region: Application of multivariate statistical model

Hydrogeochemical studies have been carried out in a coastal region, using multivariate statistical model, for better understanding the controlling processes that influence the aquifer chemistry. Two principal components (PC1 and PC2) are extracted from the data set of chemical variables (pH, TDS, Ca...

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Published in:Journal of the Geological Society of India 2014-10, Vol.84 (4), p.494-500
Main Authors: Subba Rao, N., Vidyasagar, G., Surya Rao, P., Bhanumurthy, P.
Format: Article
Language:English
Subjects:
Alkalinity
Anthropogenic factors
Aquifers
Coastal areas
Coastal zone
Earth and Environmental Science
Earth Sciences
Geochemistry
Geology
Groundwater
Hydrogeochemistry
Hydrogeology
Marine
Mathematical models
Multivariate analysis
Salinity
Spatial distribution
Statistical analysis
Statistical models
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container_title Journal of the Geological Society of India
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description Hydrogeochemical studies have been carried out in a coastal region, using multivariate statistical model, for better understanding the controlling processes that influence the aquifer chemistry. Two principal components (PC1 and PC2) are extracted from the data set of chemical variables (pH, TDS, Ca 2+ , Mg 2+ , Na + , K + , HCO 3 − , Cl − , SO 4 2− , NO 3 − and F − ), which account for 79% of the total variation in the quality of groundwater. The PC1 (salinity controlled process) includes the concentrations of TDS, Mg 2+ , Na + , K + , Cl − , SO 4 2− and NO 3 − , while the PC2 (alkalinity controlled process) comprises the concentrations of pH, HCO 3 − and F − . The spatial distribution of PC scores identifies the locations of high salinity and alkalinity processes. The first process corresponds to the influences of geogenic, anthropogenic and marine sources, and the second one to the influence of water-soil-rock interaction. Thus, the present study shows the usefulness of multivariate statistical model as an effective means of interpretation of spatial controlling processes of groundwater chemistry.
doi_str_mv 10.1007/s12594-014-0155-6
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source Springer Nature
subjects Alkalinity
Anthropogenic factors
Aquifers
Coastal areas
Coastal zone
Earth and Environmental Science
Earth Sciences
Geochemistry
Geology
Groundwater
Hydrogeochemistry
Hydrogeology
Marine
Mathematical models
Multivariate analysis
Salinity
Spatial distribution
Statistical analysis
Statistical models
title Assessment of hydrogeochemical processes in a coastal region: Application of multivariate statistical model
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