Articles | Volume 23, issue 11
https://doi.org/10.5194/nhess-23-3379-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-23-3379-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
07 Nov 2023
Research article |
| 07 Nov 2023
| 07 Nov 2023
Assessing typhoon-induced compound flood drivers: a case study in Ho Chi Minh City, Vietnam
Francisco Rodrigues do Amaral
CORRESPONDING AUTHOR
IGE, Univ. Grenoble Alpes, CNRS, IRD, 38000, Grenoble, France
Nicolas Gratiot
IGE, Univ. Grenoble Alpes, CNRS, IRD, 38000, Grenoble, France
Centre Asiatique de Recherche sur l'Eau (CARE), Ho Chi Minh City University of Technology (HCMUT), VNU-HCM, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
Thierry Pellarin
IGE, Univ. Grenoble Alpes, CNRS, IRD, 38000, Grenoble, France
Tran Anh Tu
Centre Asiatique de Recherche sur l'Eau (CARE), Ho Chi Minh City University of Technology (HCMUT), VNU-HCM, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
Department of Earth Resources and Environment, Vietnam National University – Ho Chi Minh City (VNU-HCM), Thu Duc, Ho Chi Minh City, Vietnam
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This study explores how to improve models predicting water flow in southern Vietnam's Saigon and Dongnai rivers, where data are scarce. By testing three different methods to adjust the river model using river water level and river discharge measurements, we found ways of better predicting river behavior. These findings can help manage water resources more effectively and aid in decision-making for flood protection and environmental conservation.
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This study explores how to improve models predicting water flow in southern Vietnam's Saigon and Dongnai rivers, where data are scarce. By testing three different methods to adjust the river model using river water level and river discharge measurements, we found ways of better predicting river behavior. These findings can help manage water resources more effectively and aid in decision-making for flood protection and environmental conservation.
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Short summary
We propose an in-depth analysis of typhoon-induced compound flood drivers in the megacity of Ho Chi Minh, Vietnam. We use in situ and satellite measurements throughout the event to form a holistic overview of its impact. No evidence of storm surge was found, and peak precipitation presents a 16 h time lag to peak river discharge, which evacuates only 1.5 % of available water. The astronomical tide controls the river level even during the extreme event, and it is the main urban flood driver.
We propose an in-depth analysis of typhoon-induced compound flood drivers in the megacity of Ho...
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