Journal of Geographic Information System

Volume 8, Issue 4 (August 2016)

ISSN Print: 2151-1950   ISSN Online: 2151-1969

Google-based Impact Factor: 1.58  Citations  h5-index & Ranking

Mapping of Salinity Ingress Using Galdit Model for Sirkali Coastal Region: A Case Study

HTML  XML Download Download as PDF (Size: 4633KB)  PP. 526-536  
DOI: 10.4236/jgis.2016.84044    2,056 Downloads   3,503 Views   Citations


A model is traced to evaluate and enumerate the significance of vulnerability to seawater intrusion due to excessive ground water withdrawals and some anthropogenic activities at coastal aquifers. So taking these issues into account few thematic maps which were influencing the saline water intrusion were prepared and overlaid using Geographical Information Systems (GIS). Based on GALDIT method, the groundwater vulnerability cartography has been assessed. To reckon the GALDIT index it requires six parameters like aquifer type, aquifer hydraulic conductivity, depth to groundwater level (AMSL), distance from the shore, impact of existing status of seawater intrusion and thickness of the aquifer. This GALDIT is the indicator scores and summing them and dividing by the total weight for determining the relative role of each one. Apart from this an identification of saltwater intruded area is done by using indicators of saltwater intrusion like Cl/(HCO3 + CO3) ratio and Na/Cl ratio. The vulnerability areas are classified as moderate with an area of 147.31 sq. km and low covering an area of 168.72 sq. km respectively based on the thematic maps. The final thematic map can be used for management of the coastal ground water resources.

Cite this paper

Satishkumar, V. , Sankaran, S. ,  , T. , Amarender, B. and Dhakate, R. (2016) Mapping of Salinity Ingress Using Galdit Model for Sirkali Coastal Region: A Case Study. Journal of Geographic Information System, 8, 526-536. doi: 10.4236/jgis.2016.84044.

Cited by

[1] Assessing the groundwater quality of the coastal aquifers of a vulnerable delta: A case study of the Sundarban Biosphere Reserve, India
[2] Hydrogeochemical and isotopic study for evaluation of seawater intrusion into shallow coastal aquifers of Udupi District, Karnataka, India
[3] Relationship between Time Lapse Microgravity Anomaly with Na and Cl Content for prediction of Sea Water Intrusion in Tourism Area Kota Lama Semarang Indonesia
[4] Seawater intrusion vulnerability in the coastal aquifers of southern India—an appraisal of the GALDIT model, parameters' sensitivity, and hydrochemical indicators
[5] The seawater intrusion assessment in coastal aquifers using GALDIT method and groundwater quality index: the Djeffara of Medenine coastal aquifer (Southeastern …
Arabian Journal of Geosciences, 2018

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.