Floodplain simulation for Musi River using integrated 1D/2D hydrodynamic model

Amin, M. Baitullah Al; Sarino, Sarino; Haki, Helmi

doi:10.1051/matecconf/201710105023

Cited by 9 publications

(6 citation statements)

References 19 publications

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“…Ibrahim et al (2017) used a weight of 0.7 for flood depth and 0.3 for inundation area while studying the flood vulnerability in the Kelantan River basin in Malaysia. Al Amin et al (2017) provided a greater weightage to flood depth while simulating the flood risk from the Musi River in Indonesia. We assigned the weights to the hazard indicators using the principal component analysis (PCA) (Dormann et al, 2013; Nandi et al, 2016).…”

Section: Methodsmentioning

confidence: 99%

Integrated assessment of flood risk in Arial Khan floodplain of Bangladesh under changing climate and socioeconomic conditions

Chyon

Biswas

Mondal

et al. 2023

J Flood Risk Management

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In the assessment of flood risk, the future flood hazard due to climate change is often tied to the present socioeconomic conditions. This makes an implicit assumption that the drivers of risk, other than the hazard, remain constant with time. Therefore, such risk assessment does not provide a realistic outlook for devising plausible mitigation strategies and plans. In this study, flood risk was assessed from an integrated perspective by considering both physical hazard, and socioeconomic exposure and vulnerability-all changing with time.The flood hazard in the Arial Khan River floodplain in the southcentral Bangladesh was simulated with a two-dimensional hydrodynamic model, and the exposure and vulnerability were projected using different statistical techniques. Principal component analysis was conducted to assign weights to the indicators of hazard, exposure, sensitivity, and adaptive capacity. The results show that the flood depth, duration, and extent would increase from the baseline to 2080s under regional concentration pathway (RCP) 2.6 and RCP 8.5 scenarios. The sensitivity and vulnerability would decrease, reflecting an improved adaptive capacity. The low-risk areas could increase from 62% in the baseline to 85%-91% in 2080s depending on the RCPs. The approach followed can be applied elsewhere in developing countries, particularly in riverine floodplain settings. K E Y W O R D S climate change, flood exposure, integrated risk assessment, physical hazard, vulnerability projection 1 | INTRODUCTION Climate change (CC) is one of the world's most pressing environmental concerns, posing threats to both socioeconomic development and human survival. According to the sixth assessment report (AR6) of the Intergovernmental Panel on Climate Change (IPCC), the global surface temperature might rise by more than 2 C by the end of this century for the regional concentration pathway (RCP) 6.0 and RCP 8.5 emission scenarios (IPCC, 2021).

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Section: Methodsmentioning

confidence: 99%

Integrated assessment of flood risk in Arial Khan floodplain of Bangladesh under changing climate and socioeconomic conditions

Chyon

Biswas

Mondal

et al. 2023

J Flood Risk Management

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“…Researchers underline the importance of local scouring research, as a great danger for stability loss, while emphasizing the role of flow rate as a factor determining the size of scour size and shape parameters. The role of the need to calculate the predicted parameters of the local scour hole already at the design stage of the structure is emphasised in order to avoid costly overhauls and reconstructions in the future (Sarminingsih, Soekarno, Hadihardaja & Kusuma, 2014;Amin, Sarino, Haki, 2017;Kusuma et al 2020). The formation of local scour is particularly acute in the context of the disastrous flood flows that Indonesia is facing especially often (Triatmadja, Hijah & Nurhasanah, 2011;Armono & Budipri-yanto, 2013;Asian Development Bank, 2016;Wijayanti, Zhu, Hellegers, Budiyono & van Ierland, 2016).…”

Section: Indonesian Approachmentioning

confidence: 99%

Untitled

2020

ACTA SCIENTIARUM POLONORUM - Architectura Budownictwo

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The paper provides an overview of the shape of the bridge piers, including the Indonesian approach. Universal principles of piers construction are provided, however the construction solutions placed in tropical climate conditions are determined by regional factors, such as considerations of resistance to earthquakes, tsunamis or frequent floods. The exemplary shapes of the pillars in the plan and the ways of their foundation are presented as a result of the analysis of English, Polish and Indonesian language literature. The economic role of bridge is emphasized in the context of Indonesian archipelago, where it constitute a central component of transportation system. The damage to the bridge is becoming particularly severe for the economy of the Indonesian archipelago. Therefore other climate invoke different engineerig problems. Structural solutions, which in a way respond to adverse climatic conditions are mainly using proper reinforcement in the case of piers, the drainage systems with a higher drainage capacity and metal components anti-corrosion treatment. Factors that should be considered in the design of the bridge pier shape, size, and configuration could be variously grouped and presented. From this study, following criteria can be distinguished: stability, location, seismic load, stream pressure, aesthetic, collision risk.

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“…Numerous studies have been conducted in this zone used various approaches of the numerical method (Zhang et al, 2015;Matte et al, 2017a;Sandbach et al, 2018). As for the study case, Palembang, the previous studies have conducted by Syarifudin (2017), Al Amin et al (2017) and Farid et al (2017) focusing on the floodplain simulation using an integrated 1D/2D model while the latter is completely 2D hydrodynamic modelling. Both of these models have used only tidal data sets to force the simulation, and therefore the TIFZ may not be adequately analysed.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic Modelling of Tidally-Influenced Fluvial Zone, a study case of Palembang, Indonesia

et al. 2022

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The development planning of a tidally-influenced fluvial zone poses a complex interaction between river discharge and its effect on the tidal patterns, especially in the dense population and high economic activity like Palembang located in South Sumatra Indonesia. Previous studies on numerical modelling in this area have focused on the flood; however, the hydrodynamic modelling described interaction between river discharge and tidal is not described in more detail. The present study aims to better understand the zone by using a combination of numerical modelling and qualitative assessment of in situ measurement data. Hence, the water level condition in the study area is a mix of tidal and river discharge. A 2D-hydrodynamic modeling has been successfully conducted to assess their interaction in this zone properly by using the commercial software, called MIKE21 FM. This study describes setting up the computational model, boundary location, type of forcing (tidal and non-tidal), bedform roughness, turbulent viscosity and extensive calibration and validation. In situ measurement indicates that the site's water level and flow characteristic is complex, a mixture of tidal force from the downstream and river flows from the upstream in which seasons play an important role. It is found that comparing model outputs and the measurement data in the study area for the validation and verification process effectively describes the hydrodynamic condition in the fluvial-estuarine transition area of Palembang. As the model shows good reliability, the long term hydrodynamic in line with transport model should be developed to support the Palembang area rapid development.

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Floodplain simulation for Musi River using integrated 1D/2D hydrodynamic model

Cited by 9 publications

References 19 publications

Integrated assessment of flood risk in Arial Khan floodplain of Bangladesh under changing climate and socioeconomic conditions

Integrated assessment of flood risk in Arial Khan floodplain of Bangladesh under changing climate and socioeconomic conditions

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Hydrodynamic Modelling of Tidally-Influenced Fluvial Zone, a study case of Palembang, Indonesia

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