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Study on risk assessment of water security of drought periods based on entropy weight methods

Study on risk assessment of water security of drought periods based on entropy weight methods Purpose – The purpose of this paper is to obtain risk indicators of water security of drought periods in which the indices of reliability, resiliency, and vulnerability are integrated. Design/methodology/approach – It is not reasonable that weight coefficients of different risk indices are often determined subjectively in conventional procedures, so the entropy weight method is introduced and chosen to solve the problem. Entropy weight method can get the weight coefficients of different risk indices objectively and is valid from the case study. Findings – The feasibility and validity of entropy weight methods to determine weight coefficients of different risk indices objectively are recognized. Research limitations/implications – Accessibility and availability of data are the main limitations. Practical implications – The paper provides a more objective risk indicator of water security of drought periods for water resources managers. Originality/value – This paper determines the weight coefficients of different risk indices for risk assessment of water security of drought periods based on hazard entropy. The paper is aimed at water resources managers and relative researchers, especially those who deal with risk assessment of water security of drought periods. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Kybernetes Emerald Publishing

Study on risk assessment of water security of drought periods based on entropy weight methods

Kybernetes , Volume 39 (6): 7 – Jun 15, 2010

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Publisher
Emerald Publishing
Copyright
Copyright © 2010 Emerald Group Publishing Limited. All rights reserved.
ISSN
0368-492X
DOI
10.1108/03684921011046627
Publisher site
See Article on Publisher Site

Abstract

Purpose – The purpose of this paper is to obtain risk indicators of water security of drought periods in which the indices of reliability, resiliency, and vulnerability are integrated. Design/methodology/approach – It is not reasonable that weight coefficients of different risk indices are often determined subjectively in conventional procedures, so the entropy weight method is introduced and chosen to solve the problem. Entropy weight method can get the weight coefficients of different risk indices objectively and is valid from the case study. Findings – The feasibility and validity of entropy weight methods to determine weight coefficients of different risk indices objectively are recognized. Research limitations/implications – Accessibility and availability of data are the main limitations. Practical implications – The paper provides a more objective risk indicator of water security of drought periods for water resources managers. Originality/value – This paper determines the weight coefficients of different risk indices for risk assessment of water security of drought periods based on hazard entropy. The paper is aimed at water resources managers and relative researchers, especially those who deal with risk assessment of water security of drought periods.

Journal

KybernetesEmerald Publishing

Published: Jun 15, 2010

Keywords: Cybernetics; Water supply; Risk assessment; Systems

References

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