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Suresh, M.
- Hydrogeochemical Studies by Multivariate Statistical Analysis in Upper Thirumanimuthar Sub-Basin, Cauvery River, Tamil Nadu, India
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Authors
Affiliations
1 Geographic Information Technology Lab, Department of Earth Sciences, Annamalai University, Annamalai Nagar, Tamil Nadu, IN
2 Centre for Geographic Information Technologies, Bharathidasan University, Trichy, Tamil Nadu, IN
3 Department of Ocean Studies, Pondicherry University, Andaman, IN
1 Geographic Information Technology Lab, Department of Earth Sciences, Annamalai University, Annamalai Nagar, Tamil Nadu, IN
2 Centre for Geographic Information Technologies, Bharathidasan University, Trichy, Tamil Nadu, IN
3 Department of Ocean Studies, Pondicherry University, Andaman, IN
Source
Nature Environment and Pollution Technology, Vol 8, No 4 (2009), Pagination: 693-700Abstract
In the present paper deals with the study of hydrogeochemistry of groundwater by multivariate statistical techniques such as factor and cluster analyses. The upper Thirumanimuthar sub-basin, Cauvery River, hard rock terrain in Salem District covering an area of about 346.40 km2 has been selected for the study. Fifty one samples were collected during premonsoon season 2007 and analysed for various water quality parameters like pH, EC, TDS, Ca, Mg, Na, K, HCO3, CO3, SO4, Cl and TH. Hydrogeochemical data of 51 groundwater samples were subjected to Q- and R- mode factor and cluster analysis. R-mode analysis reveals the interrelations among the variables studied and the Q-mode analysis reveals the interrelations among the samples studied. The R-mode factor analysis shows that Na and CI with HCO3 account for most of the electrical conductivity and total dissolved solids of the groundwater. The 'single dominance' nature of the majority of the factors in the R-mode analysis indicates non-mixing or partial mixing of different types of groundwaters. Both Q-mode factor and R-mode cluster analyses show that there is an exchange between the river water and adjacent groundwater. Cluster classification map reveals that 97.79% of the study area comes under cluster I classification.Keywords
Groundwater, Hydrogeochemical Studies, Multivariate Statistical Analysis, Factor Analysis, Cluster Analysis.Full Text
- Geochemical Studies of Groundwater Present in Upper Thirumanimuthar Sub-Basin, Tamil Nadu, India
Abstract Views :171 |
PDF Views:2
Authors
Affiliations
1 Department of Earth Sciences, Annamalai University, Annamalai Nagar-608 002, T.N., IN
2 Institute for Ocean Management, Anna University, Chennai, T.N., IN
1 Department of Earth Sciences, Annamalai University, Annamalai Nagar-608 002, T.N., IN
2 Institute for Ocean Management, Anna University, Chennai, T.N., IN
Source
Nature Environment and Pollution Technology, Vol 7, No 3 (2008), Pagination: 423-428Abstract
Geochemical analysis of groundwater is employed to evaluate the postmonsoon 2005 water quality of upper Thirumanimuthar subbasin. Thirty two representative groundwater samples were collected from dug and bore wells. The samples were analysed to monitor the water chemistry of major ions. The results were evaluated in detailed and compared with WHO water quality standards. An overall assessment of the water samples indicated that all parameters are within the permissible limit except in some locations. According to the USSL diagram most of the samples falls in C3-S1 class, which indicates its suitable nature. Piper trilinear diagram interpretations were made to know the chemical type of the groundwater. It reveals that the subsurface water is alkaline earth (Ca+Mg) exceeds alkalies (Na+K) type.Keywords
Groundwater, Geochemical Studies, Piper Trilinear Diagram, Kalley’s Ratio, Sodium adsorption ratio, Magnesium Hazards, Sodium Percentage.Full Text