Computing urban flooding of meandering river using 2D numerical model (case study : Kebon Jati-Kalibata segment, Ciliwung river basin)

Indrawati, Dian; Yakti, Bagus Pramono; Purwanti, Agustin; Hadinagoro, Rono

doi:10.1051/matecconf/201927004021

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…Pemodelan HEC-RAS 2D telah dilakukan pada berbagai permasalahan banjir dengan hasil yang menjanjikan [5][6] [7]. Sejalan dengan analisis hidrologi, analisis hidraulika pada DAS Konto juga dibagi menjadi 4 (empat) wilayah.…”

Section: Analisis Hidraulikaunclassified

Analisis Prioritas Penanganan Banjir Kali Konto, Provinsi Jawa Timur

Indrawati

Adityawan²,

Ichsan³

et al. 2022

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Flood in Kali Konto is a disastrous hazard which strikes a lot of housing, infrastructures and paddy fields along its river banks almost every year. In 2021, along with destroyed revertment at roolagh 70 area, flood inundated more than 10 villages in Kabupaten Jombang and several more in Malang and Kediri. However, flood management at Kali Konto needs special consideration because several conditions, include watershed area pattern, extremely slope condition changing, numerous materials from Kelud mountain eruption in several part of Konto river, and a lot of infrastructures which laid in Konto river. This paper discussed about appropriate infrastructures which derived from hydrology and hydraulics modeling for Q2 and Q50 flood return periods. Since the model resulted 49 locations, Analytical Hierarchy Process (AHP) model used for determining priority for scaling down flood hazard in Kali Konto. The most priority comes to Karang Tengah, Blaru and Bugasur Kedaleman area based on the most losses occurred.

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Section: Analisis Hidraulikaunclassified

Analisis Prioritas Penanganan Banjir Kali Konto, Provinsi Jawa Timur

Indrawati

Adityawan²,

Ichsan³

et al. 2022

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“…This research uses the hydrodynamic module of MIKE 11, which mainly uses the continuity equation of water flow and the equation of water flow motion, given the boundary conditions such as rainfall, soil type, river section and river channel roughness, and then the flow rate of the section is obtained through the equation Water level data information. The principle is to use the finite difference method for numerical solution 26 .…”

Section: Mike 11 Modelmentioning

confidence: 99%

“…6). Due to data limitations, the calibration and validation criteria mainly focused on surface inundation depths and extent 26 . The traditional lumped hydrological model requires multiple flood process data to calibrate the model parameters to obtain the best model parameters on average 36 .…”

Section: Coupled Model Calibration and Evaluationmentioning

confidence: 99%

City Flood Disaster Scenario Simulation based on 1D-2D Coupled Rain-flood Model: A Case Study in Luoyang, China

Liu

Yang

et al. 2021

Preprint

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In order to realize the reproduction and simulation of urban rainstorm and waterlogging scenarios with complex underlying surfaces. Based on the Mike series models, we constructed an urban storm-flood coupling model considering one-dimensional river channels, two-dimensional ground and underground pipe networks. Luoyang City was used as a pilot to realize the construction of a one-dimensional and two-dimensional coupled urban flood model and flood simulation. where is located in the western part of Henan Province, China. The coupled model was calibrated and verified by the submerged water depths of 16 survey points in two historical storms flood events. The average relative error of the calibration simulated water depth was 22.65%, and the average absolute error was 13.93cm; the average relative error of the verified simulated water depth was 15.27%, The average absolute error is 7.54cm, and the simulation result is good. Finally, 28 rains with different return periods and different durations were designed to simulate and analyze the rainstorm inundation in the downtown area of Luoyang. The result shows that the R2 of rainfall and urban rainstorm inundation is 0.8776, and the R2 of rainfall duration and urban rainstorm inundation is 0.8141. Therefore, rainfall is the decisive factor in the formation of urban waterlogging disasters, which is actually the rainfall duration. The study results have important practical significance for urban flood prevention, disaster reduction and traffic emergency management.

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City Flood Disaster Scenario Simulation Based on 1D–2D Coupled Rain–Flood Model

Zhao

Liu

et al. 2022

Water

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In order to realize the reproduction and simulation of urban rainstorm and waterlogging scenarios with complex underlying surfaces, based on the 1D–2D coupled models, we constructed an urban storm–flood coupling model considering one-dimensional river channels, two-dimensional ground and underground pipe networks. Luoyang City, located in the western part of Henan Province, China was used as a pilot to realize the construction of a one-dimensional and two-dimensional coupled urban flood model and flood simulation. The coupled model was calibrated and verified by the submerged water depths of 16 survey points in two historical storms flood events. The average relative error of the calibration simulated water depth was 22.65%, and the average absolute error was 13.93 cm; the average relative error of the verified simulated water depth was 15.27%, the average absolute error was 7.54 cm, and the simulation result was good. Finally, 28 rains with different return periods and different durations were designed to simulate and analyze the rainstorm inundation in the downtown area of Luoyang. The result shows that the R2 of rainfall and urban rainstorm inundation is 0.8776, and the R2 of rainfall duration and urban rainstorm inundation is 0.8141. The study results have important practical significance for urban flood prevention, disaster reduction and traffic emergency management.

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Computing urban flooding of meandering river using 2D numerical model (case study : Kebon Jati-Kalibata segment, Ciliwung river basin)

Cited by 3 publications

References 8 publications

Analisis Prioritas Penanganan Banjir Kali Konto, Provinsi Jawa Timur

Analisis Prioritas Penanganan Banjir Kali Konto, Provinsi Jawa Timur

City Flood Disaster Scenario Simulation based on 1D-2D Coupled Rain-flood Model: A Case Study in Luoyang, China

City Flood Disaster Scenario Simulation Based on 1D–2D Coupled Rain–Flood Model

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