Hydromorphological characteristics of the rivers of Algeria

Nureddin Maalem,Ilkhom Begmatov,D Bazarov

doi:10.1051/e3sconf/202126403055

Nureddin Maalem, Ilkhom Begmatov + Show 1 more

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https://doi.org/10.1051/e3sconf/202126403055

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Abstract

The article presents the results of a study on the water regime of the rivers of Algeria, which are characterized by a flood feeding regime. The flood regime is mainly formed from heavy rains, the flow of which is 80-90 % of the annual flow. Due to the short duration of rain floods, stationary hydrological posts do not always register them, so they can be characterized as single-modal, which simplifies their design possibilities. For the design of hydrographs of rain floods, a parabolic model-a flood scheme is adopted, and the main characteristics of hydrographs are determined according to this scheme.

Highlights

Agriculture is a branch of the economy to provide the population with work, food, and obtaining raw materials for several industries
According to the statistical yearbook of Algeria [1, 2], in the west of the territory, an average of 2.21 km3 of water is formed, or 18% of the flow of all the watercourses of the Northern Al-Jazayr, and in the east 10.36 km3 or 82%. Such a significant difference in the water content of remote areas of Northern Algeria is due to the conditions of runoff formation in each of the regions and, above all, the amount and distribution of precipitation, as well as the formation of runoff layers, which are equal to 83.0 and 7.0 mm, respectively, with runoff coefficients of 0.15 in the northern and 0.024 in the southern regions
Flood hydrographs in the considered territory can be characterized as single-modal, which simplifies the possibilities of their design [9, 10]

Summary

Introduction

Agriculture is a branch of the economy to provide the population with work, food, and obtaining raw materials for several industries. Agriculture ensures the food security of each state. The reliability and durability of water management structures, first of all, requires proper consideration in the projects of the hydrological regime of rivers and the hydromorphological characteristics of their channels [1,2,3,4,5,6]. In many countries of the world, due to the rain supply of rivers, there is a dry period to waterlessness in the summer. Restoration of working capacity and ensuring their reliable operation should be based on scientifically based data on the hydrology and hydromorphology of rivers [7,8,9,10,11,12,13,14]

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