Urban Coastal Flood-Prone Mapping under the Combined Impact of Tidal Wave and Heavy Rainfall: A Proposal to the Existing National Standard

The drivers for coastal flooding may vary from extremely high intensity and persistent rainfall, morphological factors of the coastal area, to extreme waves from the ocean. This means that the flood vulnerability of a coastal area does not solely depend on a single driver but can be a combination wi...

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Main Authors: Dewayany Sutrisno, Ati Rahadiati, Aninda W. Rudiastuti, Ratna Sari Dewi, Munawaroh
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:ISPRS International Journal of Geo-Information
Subjects:
Online Access:https://www.mdpi.com/2220-9964/9/9/525
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author Dewayany Sutrisno
Ati Rahadiati
Aninda W. Rudiastuti
Ratna Sari Dewi
Munawaroh
author_facet Dewayany Sutrisno
Ati Rahadiati
Aninda W. Rudiastuti
Ratna Sari Dewi
Munawaroh
author_sort Dewayany Sutrisno
collection DOAJ
description The drivers for coastal flooding may vary from extremely high intensity and persistent rainfall, morphological factors of the coastal area, to extreme waves from the ocean. This means that the flood vulnerability of a coastal area does not solely depend on a single driver but can be a combination with others. A national standard for coastal flooding based on rainfall drivers has been developed. As an evaluation, this study aimed to develop a method for coastal flood-prone mapping by combining rainfall with tidal waves. The steps included the assessment of the coastal flood-prone areas driven by rainfall (CFR) and the coastal flood-prone areas by combined drivers (CFC), which was developed by employing the analytic hierarchy process (AHP), spatial-overlaid, weighted-scored, and logical tests. The coastal area of Mataram City on the Island of Lombok in Indonesia was selected as the study area, since it is frequently affected by flooding. The findings determined the essentiality of the CFC method for identifying flood vulnerability areas. Thus, the minimum standard for CFC parameters can be defined with climatic and land characteristic factors. Further, the findings also identified the need for expert judgment in the development of the CFC weighted score-based method.
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spelling doaj.art-f9ab66542ae04587a6ed35b87abc30892023-11-20T12:11:48ZengMDPI AGISPRS International Journal of Geo-Information2220-99642020-09-019952510.3390/ijgi9090525Urban Coastal Flood-Prone Mapping under the Combined Impact of Tidal Wave and Heavy Rainfall: A Proposal to the Existing National StandardDewayany Sutrisno0Ati Rahadiati1Aninda W. Rudiastuti2Ratna Sari Dewi3Munawaroh4Center for Research, Promotion and Cooperation, Geospatial Information Agency, Jalan Raya Jakarta Bogor Km 46, Cibinong 16911, IndonesiaCenter for Research, Promotion and Cooperation, Geospatial Information Agency, Jalan Raya Jakarta Bogor Km 46, Cibinong 16911, IndonesiaCenter for Research, Promotion and Cooperation, Geospatial Information Agency, Jalan Raya Jakarta Bogor Km 46, Cibinong 16911, IndonesiaCenter for Research, Promotion and Cooperation, Geospatial Information Agency, Jalan Raya Jakarta Bogor Km 46, Cibinong 16911, IndonesiaCenter for Research, Promotion and Cooperation, Geospatial Information Agency, Jalan Raya Jakarta Bogor Km 46, Cibinong 16911, IndonesiaThe drivers for coastal flooding may vary from extremely high intensity and persistent rainfall, morphological factors of the coastal area, to extreme waves from the ocean. This means that the flood vulnerability of a coastal area does not solely depend on a single driver but can be a combination with others. A national standard for coastal flooding based on rainfall drivers has been developed. As an evaluation, this study aimed to develop a method for coastal flood-prone mapping by combining rainfall with tidal waves. The steps included the assessment of the coastal flood-prone areas driven by rainfall (CFR) and the coastal flood-prone areas by combined drivers (CFC), which was developed by employing the analytic hierarchy process (AHP), spatial-overlaid, weighted-scored, and logical tests. The coastal area of Mataram City on the Island of Lombok in Indonesia was selected as the study area, since it is frequently affected by flooding. The findings determined the essentiality of the CFC method for identifying flood vulnerability areas. Thus, the minimum standard for CFC parameters can be defined with climatic and land characteristic factors. Further, the findings also identified the need for expert judgment in the development of the CFC weighted score-based method.https://www.mdpi.com/2220-9964/9/9/525coastal floodtidal waverainfall
spellingShingle Dewayany Sutrisno
Ati Rahadiati
Aninda W. Rudiastuti
Ratna Sari Dewi
Munawaroh
Urban Coastal Flood-Prone Mapping under the Combined Impact of Tidal Wave and Heavy Rainfall: A Proposal to the Existing National Standard
ISPRS International Journal of Geo-Information
coastal flood
tidal wave
rainfall
title Urban Coastal Flood-Prone Mapping under the Combined Impact of Tidal Wave and Heavy Rainfall: A Proposal to the Existing National Standard
title_full Urban Coastal Flood-Prone Mapping under the Combined Impact of Tidal Wave and Heavy Rainfall: A Proposal to the Existing National Standard
title_fullStr Urban Coastal Flood-Prone Mapping under the Combined Impact of Tidal Wave and Heavy Rainfall: A Proposal to the Existing National Standard
title_full_unstemmed Urban Coastal Flood-Prone Mapping under the Combined Impact of Tidal Wave and Heavy Rainfall: A Proposal to the Existing National Standard
title_short Urban Coastal Flood-Prone Mapping under the Combined Impact of Tidal Wave and Heavy Rainfall: A Proposal to the Existing National Standard
title_sort urban coastal flood prone mapping under the combined impact of tidal wave and heavy rainfall a proposal to the existing national standard
topic coastal flood
tidal wave
rainfall
url https://www.mdpi.com/2220-9964/9/9/525
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