| Issue |
E3S Web Conf.
Volume 623, 2025
IV International Conference on Ensuring Sustainable Development: Ecology, Earth Science, Energy and Agriculture (AEES2024)
|
|
|---|---|---|
| Article Number | 01005 | |
| Number of page(s) | 7 | |
| Section | Ecology, Biodiversity and Ways of its Conservation | |
| DOI | https://doi.org/10.1051/e3sconf/202562301005 | |
| Published online | 08 April 2025 | |
Main trends in minimum winter average monthly runoff change of rivers in the basin of Lake Sevan
1 Yerevan State University, Yerevan, 0025, Armenia
2 Russian State Hydrometeorological University (RSHU), St. Petersburg, 192007, Russia
* Corresponding author: oderiut@mail.ru
The work is devoted to the assessment of the winter minimum average monthly runoff of the Lake Sevan basin. Analysis of the temporal distribution of the studied hydrological characteristics was carried out. The study used data on daily water consumption at 12 hydrological posts, located within the basin of Lake Sevan. The purpose of the research is to calculate the norm of winter minimum average monthly discharges, coefficients of variability (Cv) and skewness (Cs), minimum discharges of different security, to analyze and evaluate the patterns of modern changes in winter minimum average monthly discharges of the rivers of the Lake Sevan basin in a series of long-term observations. Reliability curves have been constructed, and the values of the minimum monthly runoff with a different security have been estimated. It has been established that the basin of Lake Sevan is distinguished by the variety of risks of minimal water flow in the winter period. The obtained statistical materials will serve as a basis for scientific generalizations of the results achieved, and can also be used for practical purposes in hydraulic engineering design, assessment of natural hazards and the adoption of appropriate preventive measures and solutions.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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