Flood prediction, its risk and mitigation for the Babura River with GIS

Tarigan, Ahmad Perwira Mulia; Hanie, M. Z.; Khair, H.; Iskandar, Rudi

doi:10.1088/1755-1315/126/1/012119

Cited by 3 publications

(4 citation statements)

References 3 publications

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“…• Profile data of the upstream Langsa river is carried out by measuring the field and the middle and downstream parts of the Aceh provincial irrigation office The first process in this research is to analyze the rainfall in the Langsa watershed using the following Thiessen polygon method [7]. (1) Where Ai is the area of influence of the rain gauge 1,2,3,… n; di is the height of rainfall at penakar posts 1, 2, 3,… n; and A is the total area of watershed coverage.…”

Section: Materials and Methodologymentioning

confidence: 99%

“…Previous researchers have used geographic information systems in analyzing the delineation of flood-prone areas [7][8][9][10] so that the risk of damage due to flooding can be estimated. In the study of flood discharge in the Langsa river through a hydrological process around the Langsa watershed, the first step in determining flood discharge is rainfall analysis because rain has an important role in the hydrological analysis process [11].…”

Section: Introductionmentioning

confidence: 99%

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A Flood Water Level and Risk Analysis in Langsa River Aceh Province

Ismida¹,

Isma²,

Fajri³

et al. 2021

Advances in Social Science, Education and Humanities Research

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Langsa river that crosses the city during high rainfall often experiences flooding around the river's border. This is due to the river which is not being able to accommodate the excess discharge so that the overflow of water has a negative impact on the facilities and infrastructure around the river. In addition, flooding is also affected by the damage of Langsa watersheds which is characterized by a decrease in the ability of storing the water. There are few information available regarding the high potential impact and inundation of floods in detail caused by flood discharge plan, so that this investigation aims to determine the height and inundation of floods for a return period of 5 and 100 years as a basic information in flood disaster mitigation in Langsa City. The scope of the analysis was carried out by several methods, namely the analysis of the maximum rainfall frequency distribution with the normal distribution method, log normal, log-Pearson type III, and Gumbel, periodic analysis of planned flood discharge with the Nakayashu Synthetic Unit Hydrograph method and analysis of water level and flood inundation with the help of HECRAS 5.01 and GIS software to encounter the risk of flood inundation of the stream. The results of this study denote that the flood discharge which occurs in the river due to the maximum daily rainfall (CH) based on the Gumbel distribution results in a flood discharge (Q5) of 361.21 m3/second with a water level of 1.0 meter. Meanwhile, the flood discharge (Q100) produces 564.65 m3/second with a flood water level of 3.0 meters and 33.86 square kilometers area of indunation. Moreover, with the availability of discharge information (Q100), it is predicted that 15 villages are potentially affected by flooding. The proposed analysis has auspicious value in the practical implementation of flood disaster mitigation in Langsa City.

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Section: Materials and Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Flood Water Level and Risk Analysis in Langsa River Aceh Province

Ismida¹,

Isma²,

Fajri³

et al. 2021

Advances in Social Science, Education and Humanities Research

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“…A small number of studies considered a baseline scenario such as a historical flood and compared it to alternative scenarios based on adaptation measures or climate change (Ronco et al 2014;Cham and Mitani 2015;Brown et al 2017). More than half of the reviewed studies applied return periods to build flood scenarios (e.g., Muhadi and Abdullah 2015;Tarigan et al 2018;Mahmood et al 2019). It was common to include a minimum of three different return periods (e.g., Morita 2014;Karamouz et al 2015), which is required when estimating average annual losses (Nga et al 2018).…”

Section: Hazard Modelingmentioning

confidence: 99%

A GIS-based approach to compare economic damages of fluvial flooding in the Neckar River basin under current conditions and future scenarios

Prütz¹,

Månsson

2021

Nat Hazards

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Fluvial floods can cause significant damages and are expected to increase in magnitude and frequency throughout the twenty-first century due to global warming. Alongside hazard characteristics, damage potentials depend on exposure and vulnerability, which are changing in the wake of socio-economic developments. In the context of continuously evolving damage-causing factors, assessments of future changes in flood damage potentials are increasingly asked for by decision-makers in flood risk management. This study addresses this need by (a) providing a systematic review of contemporary assessment approaches to quantitatively compare direct economic losses from fluvial flooding under current and future conditions and (b) combining the reviewed approaches to an applicable methodology which is used in a case study to quantify changing flood damage potentials in the Neckar River basin in southern Germany. Therefore, a scoping study of contemporary flood damage assessment approaches supported by geographic information systems (GIS) is performed. The subsequent case study of the Neckar River prognoses a significant increase in average annual flood damages in the study area throughout the twenty-first century. The case study produces valid results with regards to current precipitation data, whereas the absence of verification data makes the validation of projected scenarios more difficult. To account for uncertainties surrounding these future projections, a nascent qualitative confidence estimation is introduced to reflect on the strength of knowledge underlying the used flood damage assessment methodology.

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“…One of the causes of the flood in the city of Medan due to the overflow of the Babura river, where this river meets the Deli river in the center of Medan city [4]. Deli riverscape is one of the largest rivers that cross the city of Medan, so the level of vulnerability to flooding in urban areas is also high.…”

Section: Introductionmentioning

confidence: 99%

Ecotourism to improve the quality of Deli riverscape, Medan City, North Sumatra, Indonesia

Abus¹,

Lubis

Saputra³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The research objective was to propose the Deli riverscape concept through ecotourism. The data were collected by doing depth-interview and participant observation. The anthropology of landscape approach was implied in this study to analyze the spatial concept in Deli riverscape toward building ecotourism. The planning stages were survey, data inventory, data analysis, synthesis, and riverscape concept. The result of this study was the basic concepts of ecotourism development, which were realized in the form of the Deli riverscape. The riverscape concept consists of spatial planning, green planning, circulation, facilities and utilities, and activity. It indicated the need for local community participation in ecotourism through environmental management activities in waste processing. In addition, there is a need for tree planting, which is a social activity in presenting spaces for ecotourism. There is a straight line between Deli riverscape formed and improvement riverscape quality for ecotourism development. It can be concluded that there are four infrastructure developments, namely the main tourist space, supporting space, primary circulation path, and secondary circulation zone.

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Flood prediction, its risk and mitigation for the Babura River with GIS

Cited by 3 publications

References 3 publications

A Flood Water Level and Risk Analysis in Langsa River Aceh Province

A Flood Water Level and Risk Analysis in Langsa River Aceh Province

A GIS-based approach to compare economic damages of fluvial flooding in the Neckar River basin under current conditions and future scenarios

Ecotourism to improve the quality of Deli riverscape, Medan City, North Sumatra, Indonesia

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