Creation of a 3D Flood Hazard Map for a Flood-Prone Area in the Republic of the Philippines and Dissemination of the Mapping Technology

DOI Web Site 4 References
  • Naoko NAGUMO
    国立研究開発法人土木研究所水災害・リスクマネジメント国際センター専門研究員
  • Miho OHARA
    国立研究開発法人土木研究所水災害・リスクマネジメント国際センター主任研究員
  • Masakazu FUJIKANE
    国立研究開発法人土木研究所水災害・リスクマネジメント国際センター上席研究員
  • Takuya INOUE
    広島大学大学院先進理工系科学研究科准教授
  • Yuki HIRAMATSU
    国立研究開発法人土木研究所寒地土木研究所寒地水圏研究グループ研究員
  • Patricia Ann JARANILLA-SANCHEZ
    フィリピン大学ロスバニョス校（UPLB）環境科学マネジメント学部教授

Bibliographic Information

Other Title
  • フィリピン共和国の洪水常襲地を対象とした3D浸水ハザードマップの作成と技術の普及

Abstract

<p>In order to prepare for future flood disasters in developing countries where geographic information and disaster records are often insufficient, it is important to utilize technology that can easily visualize and share hazard information and help residents understand local flood characteristics. In this study, we produced 3D images of a flood-prone area in the Republic of the Philippines using Google Earth and flood calculation results from the Rainfall-Runoff-Inundation (RRI) Model and then created a 3D flood hazard map of the area visualizing the relationships between building heights and inundation depths. In addition, we prepared educational materials on this hazard mapping method, and provided lectures and tutorials during the online training conducted to transfer the technology to the Philippine side. Our attempt revealed that 3D flood hazard maps can be easily created by local people and are useful for understanding inundation risks in the mapped areas. As Google Earth is free multilingual software, the 3D flood hazard mapping method proposed in this study can be readily utilized in developing countries, where budgets and geographical data are often limited.</p>

Journal

  • E-journal GEO

    E-journal GEO 17 (1), 123-136, 2022

    The Association of Japanese Geographers

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