Rapid modeling of catastrophic floods: A case study of the Padang flood on July 14, 2023

This study presents a rapid flood modeling approach for catastrophic flood events in Padang City on July 14, 2023. Floods pose significant risks to urban areas, exacerbated by rapid urbanization and climate change. This research provides a solution to the urgent need for quickly and accurately flood...

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Main Authors: Rizky Ramadhan Yanuar, Ari Putro Dennish
Format: Article
Language:English
Published: EDP Sciences 2025-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/04/e3sconf_icdm2024_04003.pdf
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author Rizky Ramadhan Yanuar
Ari Putro Dennish
author_facet Rizky Ramadhan Yanuar
Ari Putro Dennish
author_sort Rizky Ramadhan Yanuar
collection DOAJ
description This study presents a rapid flood modeling approach for catastrophic flood events in Padang City on July 14, 2023. Floods pose significant risks to urban areas, exacerbated by rapid urbanization and climate change. This research provides a solution to the urgent need for quickly and accurately flood mapping, crucial for effective disaster response and mitigation. Various data such as Digital Elevation Models (DEMs), rainfall, evapotranspiration, soil types, and land use were employed in this study. The modeling process involved DEM conditioning, bias correction of rainfall, defining the model domain using the Topographic Wetness Index (TWI), and applying hydrological and hydrodynamic models. Model verification was conducted using flood location and depth data collected from mass media and social media, showing that the model achieved 77.8% accuracy in mapping inundated areas, with Root Mean Square Error (RMSE) and Mean Absolute Error (MAE) of flood depth at 38.093 and 27.584, before the model was calibrated. The calibration process significantly improved the model’s accuracy.
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institution Kabale University
issn 2267-1242
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publishDate 2025-01-01
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series E3S Web of Conferences
spelling doaj-art-97c2d6d012114c0d977b067f201bcb342025-02-05T10:47:52ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016040400310.1051/e3sconf/202560404003e3sconf_icdm2024_04003Rapid modeling of catastrophic floods: A case study of the Padang flood on July 14, 2023Rizky Ramadhan Yanuar0Ari Putro Dennish1PT Reasuransi MAIPARK Indonesia, Multivision Tower 8th FloorPT Reasuransi MAIPARK Indonesia, Multivision Tower 8th FloorThis study presents a rapid flood modeling approach for catastrophic flood events in Padang City on July 14, 2023. Floods pose significant risks to urban areas, exacerbated by rapid urbanization and climate change. This research provides a solution to the urgent need for quickly and accurately flood mapping, crucial for effective disaster response and mitigation. Various data such as Digital Elevation Models (DEMs), rainfall, evapotranspiration, soil types, and land use were employed in this study. The modeling process involved DEM conditioning, bias correction of rainfall, defining the model domain using the Topographic Wetness Index (TWI), and applying hydrological and hydrodynamic models. Model verification was conducted using flood location and depth data collected from mass media and social media, showing that the model achieved 77.8% accuracy in mapping inundated areas, with Root Mean Square Error (RMSE) and Mean Absolute Error (MAE) of flood depth at 38.093 and 27.584, before the model was calibrated. The calibration process significantly improved the model’s accuracy.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/04/e3sconf_icdm2024_04003.pdf
spellingShingle Rizky Ramadhan Yanuar
Ari Putro Dennish
Rapid modeling of catastrophic floods: A case study of the Padang flood on July 14, 2023
E3S Web of Conferences
title Rapid modeling of catastrophic floods: A case study of the Padang flood on July 14, 2023
title_full Rapid modeling of catastrophic floods: A case study of the Padang flood on July 14, 2023
title_fullStr Rapid modeling of catastrophic floods: A case study of the Padang flood on July 14, 2023
title_full_unstemmed Rapid modeling of catastrophic floods: A case study of the Padang flood on July 14, 2023
title_short Rapid modeling of catastrophic floods: A case study of the Padang flood on July 14, 2023
title_sort rapid modeling of catastrophic floods a case study of the padang flood on july 14 2023
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/04/e3sconf_icdm2024_04003.pdf
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AT ariputrodennish rapidmodelingofcatastrophicfloodsacasestudyofthepadangfloodonjuly142023