Delineation of potential zones for artificial recharge using gis

Abstract

In the present study, potential zones for artificial recharge in Agniar-AmbuliarSouthvellar river basins in Tamilnadu, India have been delineated through integration of various thematic maps using Arc view GIS. The study area, covers an area of 4566 km 2. Thematic maps pertaining to geology, permeability, effective soil depth, drainage intensity, soil texture, water holding capacity and physiography were prepared on 1:2,50,000 scale using conventional methods. These maps were scanned and registered with reference to a base map and are prepared as separate layers or coverages using Arc view. GIS has been used for the integration of various thematic maps to delineate the potential zones for artificial recharge. Each theme was assigned a weightage depending on its influence on groundwater recharge. Each class or unit in the map was assigned a knowledge based ranking from one to four depending on its significance in storage and transmittance of groundwater. The final map has been prepared showing four different categories of potential zones for artificial recharge.

A new spatial multi-criteria decision support tool for site selection for implementation of managed aquifer recharge

“…(e.g. Jothiprakash et al, 2003;Ghayoumian et al, 2005) and value type classifiers such as class 1 to class 4 are implemented in these studies (e.g. Ghayoumian et al, 2007).…”

“…Normal successive intersection of the thematic maps has been used, too (e.g. Jothiprakash et al, 2003). The Ordered Weighted Averaging (OWA) method has not been implemented in any study.…”

“…Geological maps, geomorphologic maps, lineament maps (e.g. Saraf and Choudhury, 1998;Jothiprakash et al, 2003;Reddy and Pratap, 2006), slope, infiltration rate (e.g. Ghayoumian et al, 2005;Werz et al, 2009), lineament density, structure, fluvial and denudational geomorphology (e.g.…”

“…Anbazhagan et al, 2005;Shankar and Mohan, 2005;Chowdhury et al, 2010,), soil texture (e.g. Kalantari et al, 2010;Jothiprakash et al, 2003), and land use (e.g. Brown et al, 2008;Reddy and Pratap, 2006;Ghayoumian et al, 2007) have been used to provide detailed quantification of surface characteristics.…”

Water Resources Assessment and Geographic Information System (GIS)-Based Stormwater Runoff Estimates for Artificial Recharge of Freshwater Aquifers in New Providence, Bahamas

“…Using various digital layers, such as land use and cover, soil type and depth, geology, and others it is possible to pinpoint locations where recharge will be successful. Jothiprakash et al (2003) used GIS in Tamilnadu, India to delineate potential zones for artificial recharge when it was found that existing recharge ponds were not effective due to the presence of large quantities of clay in the areas, which seriously reduces the percolation capacity of the soil. Using map layers such as permeability, soil depth and geology, the authors were able to pinpoint more suitable areas for recharge sites.…”