• Title/Summary/Keyword: Flooding Mitigation

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Flood Runoff Computation for Mountainous Small Basins using WMS Model (WMS 모형을 활용한 산지 소하천 유역의 유출량 산정)

  • Chang, Hyung Joon;Lee, Jung Young;Lee, Hyo Sang
    • Journal of Korean Society of Disaster and Security
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    • v.14 no.4
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    • pp.9-15
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    • 2021
  • The frequency of flash floods in mountainous areas is increasing due to the abnormal weather that occurs increasingly in the recent, and it causes human and material damages is increasing. Various plans for disaster mitigation have been established, but artificial plans such as raising embankment and dredging operation are inappropriate for valleys and rivers in national parks that prioritize nature protection. In this study, flood risk assessment was conducted for Gyeryongsan National Park in Korea using the WMS (Watershed Modeling System)which is rainfall runoff model for valleys and rivers in the catchment. As the result, it was simulated that it is flooding in three sub-catchments (Jusukgol, Sutonggol, Dinghaksa) of a total in Gyeryongsan National Park when rainfall over the 50 years return period occurs, and it was confirmed that the risk of trails and facilities what visitors are using was high. The risk of trails in national parks was quantitatively presented through the results of this study, and we intend to present the safe management guidelines of national parks in the future.

A Study of the Effectiveness of Habitat for Humanity Korea's Disaster Risk Reduction Interventions: Focusing on the Mental Health of Residents of a Perennially Flooded Area in Southern Bangladesh (한국 해비타트의 재난위기경감 개입 효과성 연구: 방글라데시 남부 상습 침수지역 거주민의 정신건강 실태를 중심으로)

  • Suyeon Lee;Eunseok Seo;Goosoon Kwon
    • Journal of the Society of Disaster Information
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    • v.19 no.4
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    • pp.788-805
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    • 2023
  • Purpose: This study aimed to verify the impact of Habitat for Humanity Korea's disaster risk reduction intervention on the mental health and satisfaction with life among residents of southern Bangladesh who had constantly suffered from disaster stress due to perennial flooding. Method: The target group was 138 residents who were pre-surveyed in August 2020 and post-surveyed in November 2021. The interventions consisted of individual incremental housing, public facilities for evacuation, and disaster response training for capacity development. The data were analysed using paired sample t-tests for pre-post changes and one-way analysis of variance to identify differences between treatment groups. Result: The results showed significant improvements in residents' depression, anxiety, somatisation and satisfaction with life after the intervention, with significant differences in mental health levels between the intervention treatments. Specifically, relatively higher disaster mitigation effects were found for individual infrastructure improvements and employment facilities compared to disaster response drills. Conclusion: These results demonstrate the positive role of Habitat for Humanity Korea's disaster risk reduction interventions on the mental health recovery of disaster victims and suggest practical approaches that can be applied in disaster risk areas.