Evaluation of flood hazard areas in Laos by using analytical hierarchy process

Phrakonkham Sengphrachanh, So Kazama, Daisuke Komopj

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In recent decade many floods occurred in Laos. In order to reduce the impact and losses from flood events, it is important to understand the magnitude of flood and its future potential impact areas. Land use change and climate change have played a significant role and it is important to understand the impacts of flooding. The land slide is another hazard that can occur after flooding. Therefore, flood hazard mapping serves as an important tool for decision-makers to understand the sensitive areas. We have developed an integrated hazard based on the combining 3 hazard maps which are a flood, land use change and climate change hazard map. Analytical Hierarchy Process (AHP) is the tool for multi criteria decision making. This method used AHP as a tool to integrate the different hazard maps into an integrated hazard map. AHP is used to provide the relative weights of each hazards map. It is necessary to understand the relative importance of each hazard map, by using the pairwise comparison matrix to compare their significance. The value of each row in pairwise comparison was determined based on the judgment of experts. The result shows that around southern and central of Laos have a high hazard. Then we compare our result with historical record to validate our study.

Original languageEnglish
Title of host publicationProceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress
Subtitle of host publicationMulti-Perspective Water for Sustainable Development, IAHR-APD 2018
Editors Karlina, Ani Hairani, Hendy Setiawan, Roby Hambali, Benazir, Warniyati Warniyati, Muhammad Ramdhan Olii, Johan Syafri Mahathir Ahmad, Djoko Legono
PublisherDepartment of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada
Pages1121-1128
Number of pages8
ISBN (Electronic)9786027176270
Publication statusPublished - 2018 Sep 1
Event21st Congress of International Association for Hydro-Environment Engineering and Research-Asia Pacific Division: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018 - Yogyakarta, Indonesia
Duration: 2018 Sep 22018 Sep 5

Publication series

NameProceedings - International Association for Hydro-Environment Engineering and Research (IAHR)-Asia Pacific Division (APD) Congress: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018
Volume2

Conference

Conference21st Congress of International Association for Hydro-Environment Engineering and Research-Asia Pacific Division: Multi-Perspective Water for Sustainable Development, IAHR-APD 2018
CountryIndonesia
CityYogyakarta
Period18/9/218/9/5

Keywords

  • Climate change
  • Flood
  • Hazard map
  • Landslide
  • Landuse change

ASJC Scopus subject areas

  • Ecology
  • Environmental Engineering

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