Prioritisation of micro-catchments based on morphology

Raju, Komaragiri Srinivasa and Kumar, Dasika Nagesh (2013) Prioritisation of micro-catchments based on morphology. In: PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-WATER MANAGEMENT, 166 (7). pp. 367-380.

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Abstract

Two multicriterion decision-making methods, namely `compromise programming' and the `technique for order preference by similarity to an ideal solution' are employed to prioritise 22 micro-catchments (A1 to A22) of Kherthal catchment, Rajasthan, India and comparative analysis is performed using the compound parameter approach. Seven criteria - drainage density, bifurcation ratio, stream frequency, form factor, elongation ratio, circulatory ratio and texture ratio - are chosen for the evaluation. The entropy method is employed to estimate weights or relative importance of the criterion which ultimately affects the ranking pattern or prioritisation of micro-catchments. Spearman rank correlation coefficients are estimated to measure the extent to which the ranks obtained are correlated. Based on the average ranking approach supported by sensitivity analysis, micro-catchments A6, A10, A3 are preferred (owing to their low ranking) for further improvements with suitable conservation and management practices, and other micro-catchments can be processed accordingly at a later phase on a priority basis. It is concluded that the present approach can be explored for other similar situations with appropriate modifications.

Item Type:	Journal Article
Publication:	PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-WATER MANAGEMENT
Publisher:	ICE PUBLISHING
Additional Information:	Copyright of this article is belongs to ICE PUBLISHING
Keywords:	conservation; hydrology & water resource; management
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	04 Sep 2013 07:20
Last Modified:	04 Sep 2013 12:12
URI:	http://eprints.iisc.ac.in/id/eprint/47051

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