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Title: ANNUAL WATER RUNOFF, SUSPENDED AND DISSOLVED LOAD OF LAKE SEVAN INFLOW STREAMS

Year

2025

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366

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Title

ANNUAL WATER RUNOFF, SUSPENDED AND DISSOLVED LOAD OF LAKE SEVAN INFLOW STREAMS

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Authors

Irina Fedorova; Narine Hayrapetyan; Elizaveta Chezhina; Mikhail Spitsyn; Grigory Fedorov

DOI

10.5593/sgem2025/3.1/s11.04

DOI Issue

10.5593/sgem2025/3.1

ISSN

1314-2704

ISBN

978-619-7603-81-1

Language

English

Volume

Issue

3.1

Editor

• Prof. Dr. hab. oec. Baiba Rivza, LATVIA• Prof. DSc. Ildiko Tulbure, GERMANY• Prof. DSc. Oleksandr Trofymchuk, UKRAINE

Scientific Area

Hydrology, Water Resources, and Climate Resilience

Abstract/ Foreword

Water discharges, suspended load and hydrochemistry for 35 inflows of largest Caucasian Lake Sevan were measured 3 times in different hydrological seasons during 2024 and 2025. During summer most of small streams dried out while in winter a number of rivers were frozen into the bottom.
The water discharges varied from 0.01 in summer to 8.02 m3/sec in spring. Large natural inflows are Argichi, Dzknaget, Gavaraget, Masrik rivers with water discharges in spring 8.0, 6.3, 4.5, 2.8 m3/sec correspondingly. By the end of summer, the Gavaraget River has the highest water discharge (4.6 m3/sec), but discharges of the Dzknaget and Masrik Rivers decreases in summer and winter by more than an order of magnitude. Minimal turbidity amplitude was in winter – 2.8-6.5 mg/l, highest – in spring – 218 – 3596 mg/l with Cs/Cv=1.5. The average turbidity values detected in inflows during spring, summer and winter were 224, 21 and 2.8 mg/l respectively.
Conductivity and TDS have no high variability through the year with maximal value in summer 486 µS/cm (r.Drakhtik) and winter 254 mg/l (r.Masrik) with the biggest ionic discharge 610 mg/sec in spring (r.Gavaraget). pH values reflect neutral or light alkaline waters. Throughout the year, inflows had oxygen conditions with occasional oversaturation. NO2+NO3 concentration reached highest values in winter but phosphate – in spring which are toxic for fluvial and lake ecosystems during fish spawning. Silicates play a significant role in summer and winter.

References (click to open)

[1] Alekin O.A. General hydrochemistry (chemistry of natural waters). Hydrometeoizdat, Leningrad, 1948. 207 p.
[2] Caucasus Environment Outlook. Second edition. 2024 United Nations Environment Programme. https://doi.org/10.59117/20.500.11822/46485
[3] Fedorova I.V., Gabrielyan I.G., Chezhina E.P., Fedorov G.B. Preliminary assessment of methane emissions from small Armenian lakes. Sustainable Development of Mountain Territories. 2024, vol. 16, no. 3, pp. 1302–1312. (In Russ.). DOI: https://doi.org/10.21177/1998-4502-2024-16-3-1302-1312.
[4] Gabrielyan B, Khosrovyan A, Schultze M. A review of anthropogenic stressors on Lake Sevan, Armenia. J. Limnol. 2022;81(s1):2061. DOI: 10.4081/jlimnol.2022.2061
[5] https://armmonitoring.am/ (data of access 30.04.25)
[6] Mamedov J. G. Culculations of Entrained sediments, taking into account the largest expenditures of suspended sediments (using the example of the rivers of the Greater Caucasus of Azerbaijan). Geography and water resources ? 1 (2024): p.8-15. https://doi.org/10.55764/2957-9856/2024-1-8-15.2
[7] Materials on the study of Lake Sevan and its basin. Part VI. The water balance of Lake Sevan. Edited by V.K.Davydov. Hydrometeorological publishing house. Leningrad. 1938.82 p.
[8] Scientific basis for the conservation and rehabilitation of lake Sevan natural resources. Edd. by S.V.Berdnikov, V.V.Selyutin. Rostov-on-Don, SSC RAS Publishers, 2022. 384 p.
[9] Surface water resources of the USSR. Main hydrological characteristics (for 1963-1970 and the entire observation period). Volume 9. Transcaucasia and Dagestan. Issue 2. Armenia. Edited by A.E.Voskanyan . Hydrometeorological data. Leningrad. 1976.
[10] Zaikov B.D. Hydrological survey of the Lake Sevan basin. Materials on the investigation of Lake Sevan and its basin. Edited by V.G.Glushkov and V.K.Davydov. Part I., vol. 3. Leningrad, 1933. 120 p.

Acknowledgements (click to open)

The work is supported by the Ministry of Education, Science, Culture and Sports of Armenia (project – 23IRF-1E02). Authors thanks Resource Centres (Methods for the analysis of the composition of a substance and X-ray diffraction research methods) of St. Petersburg State University for hydrochemical analyses of water samples

Type

conference

Url

https://doi.org/10.5593/sgem2025/3.1/s11.04

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ANNUAL WATER RUNOFF, SUSPENDED AND DISSOLVED LOAD OF LAKE SEVAN INFLOW STREAMS

Proceedings Тitle

Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025, Volume 25, Issue 3.1

Note

25th International Multidisciplinary Scientific GeoConference SGEM 2025, Volume 25, Issue 3.1, 29 June - 6 July, 2025

Type

Proceedings Paper

Publisher

STEF92 Technology

Series

International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM

Organization

SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.

Pages

31-40

Date

29 June - 6 July, 2025

Online Source Type

website

Digital Source Type

10352

Keywords

upland streams, Armenia, Caucasus, runoff, hydrochemistry, turbidity