Appraising the Accuracy of Multi-Class Frequency Ratio and Weights of Evidence Method for Delineation of Regional Groundwater Potential Zones in Canal Command System

Satiprasad Sahoo, Selva Balaji Munusamy, Anirban Dhar (), Amlanjyoti Kar and Prahlad Ram
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Satiprasad Sahoo: Indian Institute of Technology Kharagpur
Selva Balaji Munusamy: Indian Institute of Technology Kharagpur
Anirban Dhar: Indian Institute of Technology Kharagpur
Amlanjyoti Kar: Central Ground Water Board
Prahlad Ram: Science and Engineering Research Board

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2017, vol. 31, issue 14, No 2, 4399-4413

Abstract: Abstract A comparative study of probabilistic frequency ratio (FR) and weights of evidence (WofE) method is performed for delineation of regional groundwater potential zones (GPZ) in canal command system. In the present case study, delineation of GPZ in the Hirakud agricultural command area of Odisha, India. Field discharge data from borewells are utilized for the analysis along with remote sensing (RS) and geographic information system (GIS) techniques. Various influencing attributes responsible for occurrence and movement of groundwater, e.g., land use / land cover, soil type, groundwater depth, geology, elevation, geomorphology, slope, recharge rate, rainfall, normalized difference vegetation index, drainage density, crop intensity are integrated by using GIS platform. Model results from FR and WofE show similar trends. The middle portion of the study area covers the ‘Good’ GPZ. Sensitivity analyses are performed for FR and WofE methods.

Keywords: Groundwater potential; Frequency ratio; Weights of evidence; Sensitivity analysis; Remote sensing; GIS (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1007/s11269-017-1754-y

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