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GIS Based Assessment and Design for Areas Vulnerable to Soil Disasters: Case Study of Namhyeun-dong, South Korea

Author

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  • Hyeji Jeon

    (Interdisciplinary Program in Urban Design, Seoul National University, Seoul 08826, Korea)

  • Junsuk Kang

    (Interdisciplinary Program in Urban Design, Seoul National University, Seoul 08826, Korea
    Department of Landscape Architecture and Rural Systems Engineering, Seoul National University, Seoul 08826, Korea
    Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
    Interdisciplinary Program in Landscape Architecture, Seoul National University, Seoul 08826, Korea)

Abstract

Due to climate change, heavy rainfall events that trigger landslips are becoming common. This study investigates patterns in the soil’s response to major rainfall events in mountainous areas and proposes a new approach for resilient disaster prevention technology and recovery based on the effect of soil runoff. Namhyeon-dong within Seoul was selected for the case study because of its vulnerable location between two mountains. A master plan was developed to cope with the predicted soil runoff based on the annual rainfall, local land use and a series of 10-year forecasts covering the period from 2021 to 2100. A total of 22 catchments in the study area were analyzed with Arc Hydro, an ArcGIS plug-in and appropriate technologies proposed to deal with the soil runoff likely to be experienced in each catchment in an extreme disaster. The resulting model was deemed adequate to deal with disasters during the period predicted to represent the highest risk, 2051–2060. The study’s findings will help to forecast disasters from flood that could impact residential areas in mountainous regions, to predict the magnitude of potential soil disasters in individual regions and develop design guidelines for disaster prevention technology based on the predicted amount of soil runoff.

Suggested Citation

  • Hyeji Jeon & Junsuk Kang, 2020. "GIS Based Assessment and Design for Areas Vulnerable to Soil Disasters: Case Study of Namhyeun-dong, South Korea," Sustainability, MDPI, vol. 12(6), pages 1-23, March.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:6:p:2516-:d:336068
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    References listed on IDEAS

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    1. Gezahegn Weldu Woldemariam & Anteneh Derribew Iguala & Solomon Tekalign & Ramireddy Uttama Reddy, 2018. "Spatial Modeling of Soil Erosion Risk and Its Implication for Conservation Planning: the Case of the Gobele Watershed, East Hararghe Zone, Ethiopia," Land, MDPI, vol. 7(1), pages 1-25, February.
    2. Athena Yiannakou & Konstantina-Dimitra Salata, 2017. "Adaptation to Climate Change through Spatial Planning in Compact Urban Areas: A Case Study in the City of Thessaloniki," Sustainability, MDPI, vol. 9(2), pages 1-18, February.
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    Cited by:

    1. Jaekyoung Kim & Junsuk Kang, 2020. "Analysis of Flood Damage in the Seoul Metropolitan Government Using Climate Change Scenarios and Mitigation Technologies," Sustainability, MDPI, vol. 13(1), pages 1-28, December.

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