Application of GIS and Remote Sensing for Identification of Groundwater Potential Zone in the Hilly Terrain of Bangladesh

Md Abu Hamjalal Babu,Md Sirajul Islam,Fahim Farzana,Muhammad Jasim Uddin,Md Risadul Islam

doi:10.33002/nr2581.6853.03032

Abstract

Groundwater is the most significant assets on the planet and is declining continuously. The integration of GIS system and remote sensing turned into substantial tools in the field of subsurface water study, which assists in surveying, observing and monitoring the groundwater capitals. With this backdrop, using GIS and remote sensing application, a study was conducted to identify the potential groundwater zones in the hilly district Khagrachhari. The ground water potential zones were identified based on different thematic maps such as drainage, density, lineament density, slope, land use or land cover, soil and geology by using weighted overlay analysis. The groundwater potential zones were investigated orderly into four classes known as poor, moderate, good and very good. This groundwater potential information will work as a guideline to the concerned local authority to identify effectively the suitable locations for the extraction of groundwater.

Highlights

Groundwater is the surface water that saturates the ground through a procedure called infiltration
The aim of the study was to identify the groundwater potential zones in Khagrachhari district, which will act as a guideline for the local authority as well as the local community to construct the artificial dam that can help minimize the water crisis in this area
The drainage network of Khagrachhari district was prepared with the help of the ArcMap hydrology tool and the density was estimated by running the kernel density estimation

Summary

Introduction

About 785 million people on the planet or 1 of every 9 individuals need access to water. Of the world's absolute water supply of about 332.5 million cubic miles, more than 96% is saline water. What's more, of the absolute freshwater, more than 68% is locked up in ice and glaciers. Another 30% of freshwater is in the ground (Igor, 1993). Groundwater is the surface water that saturates the ground through a procedure called infiltration. New populations in new territories of a district need to discover new groundwater to fulfill their water requirements (Gupta and Srivastava, 2010). A zone of high seepage thickness expands surface overflow. Like streams, lakes, and rivers, have recharge zones (Murugesan et al, 2012)

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