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Influence of Construction Schemes for a Non-compensatory Composite Indicator on Flood Vulnerability Assessments in the Korean Peninsula

  • Jong Seok Lee
  • Hyun Il ChoiEmail author
Research paper
  • 12 Downloads

Abstract

This study aims to investigate the influence of construction schemes for non-compensatory composite indicators by multiplicative utility functions on the flood vulnerability assessment. The flood vulnerability outcomes are evaluated and compared for the 231 administrative districts in the Republic of Korea, based on the two composite indicators by different aggregation schemes from the three assessment components such as exposure, sensitivity, and coping, presented in The IPCC Third Assessment Report. The one scheme uses the coping component having a negative functional relationship with vulnerability as a divisor, and the other scheme employs the lack of coping component in the opposite concept to coping as a multiplier. As a result of comparison analysis, some districts show markedly large differences in the flood vulnerability ranking orders by the two different aggregation schemes using the same proxy variables. For robustness of flood vulnerability assessment outcomes, it is necessary to compile a non-compensatory composite indicator under the condition that all constituent assessment components have the same directional elasticity to vulnerability. This study can help to select a proper aggregation framework in constructing flood vulnerability indicators to provide useful information for supporting policy and decision-making on complex issues.

Keywords

Flood vulnerability assessment Non-compensatory composite indicator Multiplicative utility function Elasticity to vulnerability 

Notes

Acknowledgements

This subject is supported by Korea Ministry of Environment (MOE) as “Water Management Research Program” (18AWMP-B079625-05).

Compliance with Ethical Standards

Conflict of interest

The authors declare no conflict of interest.

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Copyright information

© Iran University of Science and Technology 2018

Authors and Affiliations

  1. 1.Department of Civil EngineeringYeungnam UniversityGyeongsanSouth Korea

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