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Assessing Groundwater Vulnerability to Seawater Intrusion in Morbi-Maliya Using GALDIT Method


Savariya Prayag R. , L.E college Morbi; Bhatt Neelkanth J., Goverment Engineering college, Rajkot


Ground Water, GALDIT index, Morbi-Maliya, sea-water intrusion.


This study presents the application of the GALDIT method, for the mapping of ground water vulnerability to sea water intrusion in the Morbi- Maliya region of the saurashtra coast line. Chachadi andLlobo-ferreira initially in 2001 had developed the GALDIT method. Later in 2005, they had modified the method which is specific for coastal aquifers. The GALDIT index is based on four intrinsic hydrogeological parameters, one spatial parameter and one boundary parameter. The parameters of GALDIT index are: Ground water Occurrence (aquifer type), aquifer hydraulic conductivity, depth of ground water level above the sea level, distance from the shore, impact of existing status of sea water intrusion in the area, and thickness of the aquifer. Each GALDIT parameter has been evaluated with respect to the other to determine the relative importance of each factor. GALDIT index is calculated after deciding the Weightage, range and rate of each factor. GALDIT index is used for study of the Ground water Vulnerability to sea water intrusion. Results shows that Maliya taluka is more prone to sea water intrusion as compare to Morbi taluka.

Other Details

Paper ID: IJSRDV2I4157
Published in: Volume : 2, Issue : 4
Publication Date: 01/07/2014
Page(s): 595-599

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