IDENTIFICATION OF POTENTIAL SITES FOR
RAINWATER HARVESTING
Presented By
Faizan Mohi u din
Water Resources Engineering and Management
Department of Civil Engineering
Annamalai University, Chidambaram,
Tamil Nadu – 608002, India.
Date: 24-06-2021
OUTLINE OF PRESENTATION

Introduction

Methodology

GIS Analysis

Results

Conclusion

Reference
INTRODUCTION
Rainwater harvesting is the technique of collection Rainwater from catchments and
can be stored in tanks.
Artificial Recharge is method by which the ground water is augmented at a rate
much higher than those under natural condition of percolation.
rainwater harvesting is having scope to improve the water scarcity problems
among nations. It is significantly approached by many agencies and is introduced in
various projects
In the schedule, to find the potential of rainwater harvesting zones the locations
are first identified which is based on slope, land use/land cover, watershed
delineation, Digital elevation model, contour map, drainage density map, the runoff
depth map, and soil texture
Traditional and old practices were used for planning soil and water conservation
interventions which is a time-consuming task. The selection of the rainwater
harvesting process depends upon the six main factors; i.e. hydrology, topography,
agronomy, soil, climate, and socio-economic conditions.
METHODOLOGY
Flow chart representing site suitability analysis
STUDY AREA
 Latitude : 12° 55' 48.00" N
 Longitude : 79° 07' 48.00" E
 Area
: 87.915 Sq km
 Population: 3936331
(Census:2011)

Growing Industrial Area
GIS ANALYSIS
Land use/Land cover Map
Soil Map
GIS ANALYSIS
Digital Elevation Map
Contour Map
GIS ANALYSIS
Drainage Density Map
Runoff Depth Map
GIS ANALYSIS
Slope Map
RESULT AND DISCUSSION
Suitability Map
40
35
Area ha
30
25
20
15
10
5
0
Restricted
Not Suitable
Moderate Suitable Suitable High Suitable
Location map of potential sites
RESULT AND DISCUSSION
Location map of potential sites
CONCLUSION
 Potential Zone Identification was Done By Using the Weighted Overlay Average Method
in QGIS 3.18
 Multi-layer Thematic Layers Such as Land Use/Land Cover, Soil Map, Slope Map,
Digital Elevation Model, Drainage Network Map, And Runoff Depth Map were
Integrated With a Projection Of EPSG 32644 WGS- 84 UTM ZONE 44N Projected
Coordinate System
 Output Indicated that 39.77% (2416 Km2) Is a Restricted Area for Rainwater Harvesting,
29.87% (1815.62 Km2) is Not Suitable for Rainwater Harvesting While 19.98% (1214.25
Km2) and 10.08% (612.88 Km2) Is A Good Suitable Site for Opting Rainwater
Harvesting and the Best Suitable Site Exhibit Only Small area where Is the Best Option
for Harvesting which is of 0.18% (11.51 Km2)
 Location names for Site Suitability for RWH Ammur, Katpadi, Gudiyattam, Ambur And
Vaniyambadi
References
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In Korea: Their Impacts on Rainwater Utilization. Environmental Technology 26:11-420.
Angrill, Sara, Farreny, Ramon, Dan Gason,(2011) Environment Analysis of Rainwater
Infrastructures in Diffuse and Compact Urban Models In Mediterranean Climate,
International Journal of Life Cycle Assess, Germany.
Imroatul C. Juliana 1,(2013) A Review of Rainwater Harvesting System for Storm Water
Management, The Second International Conference on Sustainable Infrastructure and Built
Environment- Banding 19-20 November.
Conway, D., & Schipper, E. L. F. (2011). Adaption to Climate in Africa: Challenge and
opportunities identified from Ethiopia. Global Environment Change, 21, 227-237.
Ammar Adham Ali (2016) University of Anbar identifaction of Suitable Sites for Rainwater
Harvesting Structures In Arid And Semi- Arid Regions: A Review International Soil and Water
Conservation Research 4 (2).
Venkatesh, B. And M.K. Jose (2007). Identification of Homogeneous Rainfall Regimes in Parts
of Western Ghats Regions of Karnataka. J. Earth. Syst. Sci. 116 (4):321-329
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