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Assessment of regional drought risk coupled with drought response capacity considering water supply systems

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Abstract

Drought is a complex combination of natural, physical, and social phenomena. Prolonged drought can result in significant socioeconomic damage. Because the impact of drought varies according to the regional ability to cope with drought, it is necessary to assess the risk of drought by considering regional impact and response capacity. This study aims to improve the conventional drought risk (CDR) assessment method, which typically combines drought hazard and drought vulnerability. We proposed a modified drought risk (MDR) assessment that couples the regional response capacity with the local water supply system, in addition to drought hazard and vulnerability. The application results for South Korea indicated that the MDR coupled with regional response capacity (MDR-RC) was high in the central and northeastern regions, whereas the CDR was high in the southwest regions. A comparison of the regions characterized by high MDR-RC and those that experienced actual drought events and took measures in response indicated that MDR-RC will be useful in drought planning and risk-based decision-making.

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Data availability

The datasets used or analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

We would like to express our gratitude to the editors and reviewers for their helpful comments.

Funding

This research was supported by the grants funded by the Korea Ministry of Interior and Safety (2022-MOIS63-001) and Hanyang University (HY-2022-2893).

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Authors and Affiliations

  1. Research Institute of Engineering Technology, Hanyang University, Ansan, 15588, Korea

    Ji Eun Kim

  2. Department of Civil Engineering, Joongbu University, Goyang, 10279, Korea

    Joo-Heon Lee

  3. Department of Civil and Environmental Engineering, Hanyang University, Ansan, 15588, Korea

    Tae-Woong Kim

Authors
  1. Ji Eun Kim
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  2. Joo-Heon Lee
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  3. Tae-Woong Kim
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Contributions

JEK Methodology, Software, Data curation, Writing- Original draft preparation, Validation, Investigation. JHL Conceptualization, Visualization. TWK Supervision, Writing- Reviewing and Editing.

Corresponding author

Correspondence to Tae-Woong Kim.

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Kim, J.E., Lee, JH. & Kim, TW. Assessment of regional drought risk coupled with drought response capacity considering water supply systems. Stoch Environ Res Risk Assess 38, 963–980 (2024). https://doi.org/10.1007/s00477-023-02608-9

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