gis based software for site and structure selection for ... · gis based software for site and...
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GIS based software for site and structure
selection for artificial recharge of groundwater
Ritesh Vijay Senior Scientist
ESDM Division, CSIR-NEERI, Nagpur
Environmental Systems Design & Modeling Division
National Environmental Engineering Research Institute, Nagpur
April 12, 2012
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“GIS based Software for
Artificial Recharge of Groundwater”
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Input coverages
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Contour map
Making Database
Creation of Topogrid Creation of TIN for 3 D View of the Watershed
Edit Input
coverages
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Landuse Cover
Rainfall Cover
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Input for Soil
cover
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Position of Water Table below
ground
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Geomorphological
Information of the area
Geological Information
of the area
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Drainage
Computation Module
Input coverages
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Direction grid of the Watershed Slope grid of the Watershed
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Comparison between user and computed Drainage
From Toposheet
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Digital Elevation Model
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Input coverages
Runoff Flow Computation Module
Q = C*I*A*F Runoff coefficient
(C) mainly depends
on
Landuse
Soil type
Slope class
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Slope Landuse Soil
Runoff Grid Intensity Direction Grid
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Runoff flow
in
Watershed
Value of Flow at each point of the Watershed
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Recharge Zone
Module
Input coverages
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Computation of zones and site selection based on
• Weighted Index Overlay Method
• Boolean Logic
In weighted index overlay method, the individual
thematic layers and their classes are assigned
weightage on the basis of their relative contribution
towards the ground water recharge. The classes with
higher values indicate the most favourable zones for
artificial recharge and hence used to demarcate the
suitable zones for artificial recharge.
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Suitable zones for Artificial Recharge
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Suitable Sites for Artificial Recharge Structures
The exact
location for an
artificial
recharge site,
boolean logic
and
conditional
methods are
employed. The
prime task is to
identify the
criteria and to
formulate the
set of logical
condition to
extract the
suitable sites.
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Artificial Recharge Structures suggestion The suitability of artificial recharge structures in a given area computed
by the climatic, topographic, hydrogeologic and landuse conditions.
Climatic conditions - availability of water resources
Topography – extent of runoff and retention
Soil and Landuse – extent of infiltration
Hydrogeologic – potential, existence and accessibility of AR
Topographic slope
Hydrogeologic Group Aquifer Situation
Consolidated Semi Consolidated Un-consolidated
Rainfall Unconfined
Confined Adequate Limited Adequate Limited Adequate Limited
High Slope (20 to 12%)
runoff zone
Bench & Contour Trench
Gully Plug Bench & Contour Trench
Gully Plug Unconfined
Moderate slope (10 to 5 %) Piedment zone
Bench & Contour Trench, Gravity Head, Recharge Well
Nala Bund, Contour Bund, Percolation Tank, Nala Trench, Gravity Head, Recharge Well, Bore Blasting
Bench & Contour Trench, Gravity Head, Recharge Well
Nala Bund, Contour Bund, Percolation Tank, Nala Trench,
G. H. Recharge Well
Ditch & Furrow, Recharge Basin, Pits and Shaft, Contour Trench, G. H. Recharge Well
Recharge Basin, Pits & Shaft, Contour Trench,
G. H. Recharge Well
Unconfined
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Structures Suggestion for Artificial
Recharge
Input coverages
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REFERENCES
• P.K.Mukherjee, Textbook of Geology, World Press Publications, Inc., New York, 1995.
•American Society of Civil Engineers – Hydrology Handbook 2nd Edition, Green Ampt Parameters,
1993. •K.R Dixit, Vishwas .S. Kale, M.N.Kaul, India Geomorphological Diversity, Rawat Publications,
1994. •Glenn. O.Schwab, Delmar. D.Fangmeier and William. J.Elliot, Soil and water Management System •T.D.Biswas , S.K.Mukherjee, Text book of Soil Science 2nd Edition,Tata Mcgraw Hill ,1995.
•Environmental System Research Institute, Inc, ARC/INFO User’s Guide, AML Programming, 1992
•Environmental System Research Institute, Inc, ARC/INFO User’s Guide, Understanding GIS, 1992
•Environmental System Research Institute, Inc, ARC/INFO User’s Guide, Arcplot User’s Guide,
1992
•Environmental System Research Institute, Inc, ARC/INFO User’s Guide, Arcedit User’s Guide,
1992 •Environmental System Research Institute, Inc, ARC/INFO User’s Guide, Map Display & Query,
1992 Environmental System Research Institute, Inc, ARC/INFO User’s Guide, Cell-based Modeling with
Grid, 1992
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