10.4122/1.1000001409
Asadi, S. S.
S. S.
Asadi
Vuppala, P.
P.
Vuppala
Reddy, M. A.
M. A.
Reddy
Critical studies for predicting groundwater quality in Hyderabad urban area by integrating remote sensing and GIS
DTU Library, Technical University of Denmark (DTU)
2005
Conference presentation
Groundwater quality
Land use
Land cover
Spatial distribution
Remote sensing
GIS
Jawaharlal Nehru Technological University, Centre For Environment
Centre For Environment
Jawaharlal Nehru Technological University
2005
en
10.4122/1.1000001410
text/xml
Ground water quality in Hyderabad has special significance and needs great attention of all concerned since it is the major alternate source of domestic, industrial and drinking water supply. The present study is carried out to monitor the ground water quality with respect to the land use change and to map such quality using Remote sensing and GIS techniques for a part of Hyderabad metropolis. Thematic maps like base map, drainage and road network maps were prepared using SOI toposheets on 1:50,000 scale using AutoCAD and ARC/INFO software. Land use/land cover map of the study area is prepared from the linearly enhanced fused data of IRS-ID PAN and LISS-III imagery using visual interpretation technique. The ground water samples were analyzed physico-chemically for the generation of attribute database. Based on the results of the analysis, maps showing spatial distribution of major water quality parameters are prepared using curve fitting method in Arc View v3.1GIS software. Water Quality Index (WQI) in the study area was determined to find out the suitability of water for drinking purpose. The results showed a high concentration of nitrates, hardness, alkalinity and TDS in few areas of Zone-V which could be due to the present landform, dumping sites, seepage of waste and effluents and also the weathering of mineral bearing rocks and leaching. The overall view of the water quality index of the present study zone showed a satisfactory result with most of the study area with < 50 standard rating of water quality index except in places like Yousufguda, Erragadda, Shaikpet and Hakimpet. Appropriate methods for improving the water quality in these areas have been suggested.