Abstract

Indonesia’s extensive coastline and tropical climate make it highly vulnerable to flooding, particularly in coastal regions like the Sayung River in Central Java. This study focuses on flood drivers such as land subsidence, sedimentation, and tidal factors, which have caused severe damage to areas like Semarang and Demak. Three analyses were conducted: the first employed an unsteady flow model with upstream discharge (Q25) and downstream tidal input. The second used a quasi-unsteady flow model with daily discharge and tidal input. The third was a 2D simulation predicting conditions for the 10th, 20th, and 50th years, factoring in tides, subsidence, sea level rise, and sedimentation. Sediment control measures for the 10th year include embankment construction and channel maintenance, while medium- and long-term solutions involve implementing a polder system with a weir, spillway, reservoir (+4.85 million m3), and pump capacity (+52.45 m3/s). These integrated approaches provide critical insights for flood management in coastal regions threatened by climate change and land degradation.

Details

Title
The Effect of Discharge, Sediment Transport, Tidal and Land Subsidence in The River Flood Risk Management: Case Study of Sayung River
Author
Nugroho, Eka Oktariyanto 1 ; Angga Yoga Pranatan 2 ; Soekarno, Indratmo 1 ; Moerwanto, Arie Setiadi 3 ; Siska Wulandari 4 ; Nurkhaerani, Fatma 5 ; Syakira, Hana 2 ; Sadat, Sayed Hashmat 6 

 Water Resources Engineering Research Group, Faculty of Civil and Environmental Engineering, Bandung Institute of Technology , Jl. Ganesha 10, Bandung, 40132, Indonesia 
 Master of Water Resources Management, Faculty of Civil Engineering and Environmental, Bandung Institute of Technology , Jl. Ganesha 10, Bandung, 40132, Indonesia 
 Center for Research and Development of Water Resources (SDA), Research and Development Agency of the Ministry of Public Works and Public Housing , Indonesia 
 Master of Water Resources Engineering, Faculty of Civil and Environmental Engineering, Bandung Institute of Technology , Jl. Ganesha 10, Bandung, 40132, Indonesia 
 Civil Engineering, Singaperbangsa Karawang University , Karawang, 41361, Indonesia 
 Nagoya Institute of Technology , 466-8555 Nagoya, Japan 
First page
012017
Publication year
2024
Publication date
Dec 2024
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3147096721
Copyright
Published under licence by IOP Publishing Ltd. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.