Inundation maps for extreme flood events: Case study of Sidi Bel Abbes city, Algeria

Atallah, M’hamed; Hazzab, Abdelkrim; Seddini, Abdelali; Ghenaim, Abdellah; Korichi, Khaled

doi:10.2478/jwld-2018-0021

Cited by 9 publications

(5 citation statements)

References 15 publications

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“…There is a problem of phosphorus in agriculture, the solution to which is associated with the knowledge of its various forms in the soil and their transformation, the ways of its mobilization, and the conditions for the most effective use of phosphorus fertilizers in our and other countries, has been the topic of several studies [MAHFOUD et al 2020;SMIT et al 2009;TIRADO, ALLSOPP 2012]. Within the literature, there is a lot of data on the forms of various phosphates and their quantitative content in different soils.…”

Section: Introductionmentioning

confidence: 99%

Journal of Water and Land Development

Alimbekova,

Yeleshev,

Bakenova

et al. 2021

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This study presents the results of research on the effect of long-term use of phosphorus fertilizers on permanent sugar beet crops for more than 50 years and on the transformation of phosphate forms on light chestnut soil and its yield. Our work aims to establish the main factors of quantitative and qualitative changes in various phosphates in light chestnut soil. Despite the large amount of practical material, the influence duration of phosphorus fertilizer application has not been sufficiently studied on the irrigated soils of Kazakhstan. It should be noted that the current study was carried out in long-term stationary experimental sites for the production of sugar beet with permanent sowing. The introduction of phosphate fertilizers primarily on the permanent crops of sugar beets in the same norms contributes to a more significant increase in gross phosphorus reserves. The soil content of gross phosphorus for 58 years on the control and nitrogen-potassium variants show practically no changes. Furthermore, when phosphorus fertilizers are applied on the variant with the annual application of a single norm of phosphorus and its amount for 58 years (4400 kg•ha -1 of application doses) its content increased by 2660 mg•kg -1 , and with the introduction of its one and a half norms (6600 kg of application doses) by 2860 mg•kg -1 of soil.

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Section: Introductionmentioning

confidence: 99%

Journal of Water and Land Development

Alimbekova,

Yeleshev,

Bakenova

et al. 2021

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“…This method allows simulations of flood events, considering different flood scenarios, based on historical or rating curve information. Numerical models used in hydrodynamic simulations can be applied to create hazard maps and to reconstruct the extension of past flood events [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Development of Flood Risk and Hazard Maps for the Lower Course of the Siret River, Romania

et al. 2020

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The Siret River is one of the most important tributaries of the Danube River in the Romanian territory. With a total length of 596 km in this territory, the confluence section of the Siret River with the Danube represents an area where major floods have occurred over time. In the last 50 years, over 20 floods have been recorded in the lower area of the Siret River; and the most recent important flood, which happened in 2010, had a negative impact on the local population, the environment, and the economy. Although it is a buffer zone, the Danube River has a significant impact on the discharge rate of the Siret River. Since few studies have been conducted on the prediction of flooding in the lower area of the Siret River, the present study aims at presenting the most important steps to be taken for designing risk and hazard maps for floods, which could be further applied to other rivers. The confluence of the Siret River with the Danube, a distance of 35 km upstream, was chosen as a study area. Techniques of topographic and bathymetric measurements were combined in order to design the risk and hazard maps for floods in this area and to improve the digital terrain model of the minor riverbed for the studied river area. The 1D hydrodynamic model of the HEC-RAS software was used in this research for developing the flood risk and flood hazard maps. The hazard and risk maps were generated based on 10%, 5%, and 1% flood scenarios, which are in accordance with Floods Directive 2007/60/EC; no historical data were available for the 0.1% scenarios. Thus, in a flood scenario that can occur every 100 years, about 9500 inhabitants are vulnerable at a medium flood risk. In this scenario, over 19.5 km of road infrastructure, about 16.5 km of railways, eight cultural heritage indicators, and three environmental indicators may be affected.

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“…Floods are natural disasters that afflict almost all regions in the world today. The threat of flooding is a natural disaster that most frequently cause loss of property and lives [1] ,estimates of the size and frequency of floods is important for infrastructure planning and design and in the management of water resources and riparian areas [2] Research on flood frequency has focused on the estimation of extreme flood events, rather than the more frequent small to moderate magnitude flood events which dictate alluvial channel morphology [3,4], Flood inundation models play a central role in both real time flood forecasting and in flood plain mapping [5] ,the HEC RAS is one of this models, Already many authers using this models for modeling flooding in various countries where the results were satisfactory [6,7]. The objective of this study is to forecast the flood water surface profile on a return period of 50 and 100 years.…”

Section: Introductionmentioning

confidence: 99%

Flood risk management in Allala River (Algeria) using Flood frequency analysis and hydraulic modeling

et al. 2019

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The objective of flood frequency analysis (FFA) is to associate flood intensity with a probability of exceedance and for making probabilistic estimates of a future flood event in Allala basin based on the historical discharge record at Sidi Akkacha gauging station, the peak floods discharge of Allala river for 5, 10, 50, 100 years return period are estimated using exponential distribution and the stage at different position of river are calculated using HEC RAS model . Based on the modeling study carried out considering 62 cross sections for 8 km length of river, The Output HEC-RAS model show that the existing embankments system on the banks of Allala River is not sufficient to resist the peak flood discharge of 100 years return period, water level profile shows that a maximum of 1.25m in left bank((at 1.2 km downstream) is needed to protect the inundation of the low laying areas of Old tenes.

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Inundation maps for extreme flood events: Case study of Sidi Bel Abbes city, Algeria

Cited by 9 publications

References 15 publications

Journal of Water and Land Development

Journal of Water and Land Development

Development of Flood Risk and Hazard Maps for the Lower Course of the Siret River, Romania

Flood risk management in Allala River (Algeria) using Flood frequency analysis and hydraulic modeling

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