International Research Journa Vol. 5(11), 1-12, December (20 International Science Community Associa Assessment of groundwat techniques in Go Govin Centre for Remote Received 18 th August Abstract The Gomukhi river basin of Tamilnadu is canal irrigation system, major cultivation mostly dry condition, drinking and agricul in Gomukhi river basin is very much ess Groundwater potential zones were identif land cover, slop of the ground, lineamen water level, all the thematic layers wer significance for the groundwater potentia and finally all thematic layers were inte techniques and delineate the groundwater shows around 41.38 % of the basin are groundwater potential zones. The village b groundwater potential in the Gomukhi riv potential zones map was finally validated w Keywords: Analytic Hierarchy process M Introduction The aquifers are typically made up of gravel, limestone. The water moves through these r have large connected spaces that make them depth of the surface which has groundwate called the water table. The water table can be below the ground or it can be a few hundre Heavy rains can cause the water table to ri extraction of groundwater can cause the le groundwater is an essential component of the economy of the country. Its plays an i maintaining the fragile ecosystems. The prop both surface and groundwater resources th inventory, conservation and proper plannin economic and social development. The ground especially in the hard rock terrains r understanding of geology, geomorphology an area, which are directly or indirectly control characteristics like weathering grade, permeability, slope, drainage pattern, landfor cover and climate 2,3 . The groundwater is rec the most important and dependable sources o all climate region across the world 4 . There affecting the occurrence and movement of which includes topography, Lithology, geo al of Earth Sciences ______________________________ 017) ation ter potential zones using remote se omukhi River basin of Tamilnadu, ndaraj V., Karthick P. and Lakshumanan C. Sensing Bharathidasan UniversityTiruchirappalli-620023, India [email protected]Available online at: www.isca.in t 2017, revised 14 th November 2017, accepted 20 th December 20 the region mainly depends on rain-fed agricultural system n crops are paddy and sugarcane. The western side of lture activities are high depend on rainfall. Targeting gro sential and it is necessary to improve the groundwater fied using various thematic layers such as geology, geom nt, lineament density, drainage pattern and drainage de re assigned suitable for weights based on the Saaty’s al, and their features were normalized by using Analytic egrated with Arc GIS 10.1 software, using map algor r potential zones map. The final zonation map was class eas falls under good, 29.65% areas are moderate an boundary map was super imposed over the zonation map ver basin and 8.55 % land area covered by the reserved with field check. Methods, Village wise potential zone map, GIS, Remote se sand, sandstone or rocks because they m permeable. The er is found this is e shallow as a foot ed meters of deep. ise and continuous evel to fall 1 . The e environment and important role in per management of hrough systematic ng is essential for dwater prospecting requires thorough nd lineaments of an lled by the terrain fracture extent, rms, land use/land cognized as one of of water supply in are many factors the groundwater, ological structures, depth of weathering, extent of secondary porosity, slope, drainage and land cover, climate 5 . The impo sectors as the demand and needs o Increasing demands for fresh w especially for drinking and agricultu a need have to identify the groundw AHP methods proposed as a metho decision making problems has been of problem 12 AHP is utilized when Saaty 13 provides a method for input to drive ratio scale priorities for t between the different thematic Information System can be used ef combine different themes objec systematically for demarcating gro The remote sensing provides multi- multi-sensor data of earth surfac weights are assigned to obtain the criterion over the other 18 . The s developed for this purpose, whic subjective and objective method methods, the weights are derived and preferential judgement of decis hand, mathematical models are objective weighting methods. __________ISSN 2321 – 2527 Int. Res. J. Earth Sci. 1 ensing and GIS , India a 017 m and partial areas under Kalrayan hills areas are oundwater potential areas recharge artificially. The morphology, land use and ensity, texture of soil, and according their relative Hierarchy Process (AHP) rithm of weighted overlay sified into three class and nd 28.98% areas are low to extract the village wise d forest. The groundwater nsing. fractures, primary porosity, e patterns, landform, land use ortance of water is felt in all of the population is growing. water in different sectors, ural purposes so that, there is water potential zones 6-11 . The od of solving socio-economic n used to solve the wide range dimensions are independent. judgement and measurement the distribution of influence layers 14 . The Geographical ffectively for this purpose to ctively and analyse those oundwater potential zones 15 . -spectral, multi-temporal and ce 16,17 . In the GIS analysis, e relative importance of one several methods have been ch are mainly classified as ds, in subjective weighting according to the knowledge sion makers and on the other used to derive weights in
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International Research Journal
Vol. 5(11), 1-12, December (201
International Science Community Association
Assessment of groundwater potential zones using remote sensing and GIS
techniques in Gomukhi River basin of Tamilnadu, IndiaGovindaraj V
Centre for Remote
Received 18th August
Abstract
The Gomukhi river basin of Tamilnadu is
canal irrigation system, major cultivation crops are paddy and sugarcane. The western side
mostly dry condition, drinking and agriculture activities are high depend on rainfall. Targeting groundwater potential areas
in Gomukhi river basin is very much essential and it is necessary to improve the groundwater recharge
Groundwater potential zones were identified using various thematic layers such as geology, geomorphology, land use and
land cover, slop of the ground, lineament, lineament density, drainage pattern and drainage density, texture of soil, a
water level, all the thematic layers were assigned suitable for weights based on the
significance for the groundwater potential, and their features were normalized by using Analytic Hierarchy Process (AHP)
and finally all thematic layers were integrated with Arc GIS 10.1 software, using map algorithm of weighted overlay
techniques and delineate the groundwater potential zones map
shows around 41.38 % of the basin areas falls under good, 29.65% areas are moderate and 28.98% areas are low
groundwater potential zones. The village boundary map was super imposed over the zonation map to extract the village wise
groundwater potential in the Gomukhi river basin and 8.
potential zones map was finally validated with field check.
Keywords: Analytic Hierarchy process Methods, Village wise potential zone map, GIS, Remote sensing.
Introduction
The aquifers are typically made up of gravel, sand, sandstone or
limestone. The water moves through these rocks because they
have large connected spaces that make them permeable. The
depth of the surface which has groundwater is found this is
called the water table. The water table can be shallow as a foot
below the ground or it can be a few hundred meters of deep.
Heavy rains can cause the water table to rise and continuous
extraction of groundwater can cause the level to fall
groundwater is an essential component of the environment and
economy of the country. Its plays an important role in
maintaining the fragile ecosystems. The proper management of
both surface and groundwater resources through systematic
inventory, conservation and proper planning is essential for
economic and social development. The groundwater prospecting
especially in the hard rock terrains requires thorough
understanding of geology, geomorphology and lineaments of an
area, which are directly or indirectly controlled by the terrain
characteristics like weathering grade, fracture extent,
permeability, slope, drainage pattern, landforms, land use/land
cover and climate2,3
. The groundwater is recognized as one of
the most important and dependable sources of water supply in
all climate region across the world4. There are many factors
affecting the occurrence and movement of the groundwater,
which includes topography, Lithology, geological structures,
Journal of Earth Sciences _______________________________________
(2017)
Association
Assessment of groundwater potential zones using remote sensing and GIS
techniques in Gomukhi River basin of Tamilnadu, IndiaGovindaraj V., Karthick P. and Lakshumanan C.
Centre for Remote Sensing Bharathidasan UniversityTiruchirappalli-620023, India