Long-Term Dynamics of the Hydrological Regime of the Chirchiq River

Received: 2026-07-22

Published: 2026-08-10

Abstract

In this article, the long-term dynamics of the water regime of the Chirchiq River at the Gazalkent hydrological station in northeastern Uzbekistan were analyzed based on average monthly discharge data for the period 1900–2022. The results show that the average annual discharge of the Chirchiq River at Gazalkent is approximately 217–228 m³/s, with a strong seasonal variability — the highest flows occur in the spring–summer months. The multi-year analysis identified extreme years, with 1969 being the wettest year (average 459 m³/s) and 1917 the driest (133 m³/s). Linear regression results indicate a slight decreasing trend, though it is not statistically significant. The impact of climate change and anthropogenic factors on variations in the water regime was also analyzed.

List of references

  1. Arifjanov, A.M.; Tojiboyev, S.J. Gidrotexnika inshootlaridagi zatvorlar uchun elektr yuritmasini tanlash. O’zbekgidroenergetika 2022, 14, 47–49.

  2. Arifjanov, A.M.; Tojiboyev, S.J. Qarshi magistral kanalidagi PK-792 to’suvchi inshootning suvni chiqarish qismida sathni avtomatik rostlab suv isrofini kamaytirish. In Proceedings of the Republican Scientific-Practical Conference "Problems and Solutions of Efficient Use of Water Resources in Uzbekistan"; Karshi, Uzbekistan, 2021; pp. 247–252.

  3. Arifjanov, A.M.; Fatxulloyev, A.M.; Rakhimov, K.T.; Otakhonov, M.Y.; Allayorov, D.S. Changes in hydraulic parameters in canals with side lining. IOP Conference Series: Earth and Environmental Science 2022, 1112, 012129. https://doi.org/10.1088/1755-1315/1112/1/012129

  4. Arifjanov, A.; Fatxullaev, A. Natural studies for forming stable channel sections. Journal of Physics: Conference Series 2020, 1425, 012025. https://doi.org/10.1088/1742-6596/1425/1/012025

  5. Arifjanov, A.; Tadjiboyev, S.; Vokhidova, U.; Juraboyev, I. Hydraulic model of digitalization of water accounting under the sluice gate. E3S Web of Conferences 2024, 538, 01024. https://doi.org/10.1051/e3sconf/202453801024

  6. Kubrak, E.; Kubrak, J.; Kiczko, A.; Kubrak, M. Flow measurements using a sluice gate: Analysis of applicability. Water 2020, 12(3), 819. https://doi.org/10.3390/w12030819

  7. Bonilla, C.; Brentan, B.; Montalvo, I.; Izquierdo, J. Digitalization of water distribution systems in small cities: A tool for verification and hydraulic analysis. Water 2023, 15(21), 3824. https://doi.org/10.3390/w15213824

  8. Silva, C.O.; Rijo, M. Flow rate measurements under sluice gates. Journal of Irrigation and Drainage Engineering 2017, 143.

  9. Monem, M.J.; Hosseinzade, Z. Construction and Evaluation of Automatic Pivot Weir Control System. In Proceedings of the 21st ICID International Congress on Irrigation and Drainage; Tehran, Iran, 2011; p. 450.

  10. Suntaranont, B.; et al. Energy Aware Flash Flood Monitoring Stations Using a GA-Fuzzy Logic Control Mechanism. In Proceedings of the IEEE Tenth International Conference on Intelligent Sensors, Sensor Networks and Information Processing; 2015; pp. 1–6.

  11. Dulhoste, J.F.; Georges, D.; Besancon, G. Nonlinear Control of Open-Channel Water Flow Based on Collocation Control Model. Journal of Hydraulic Engineering 2004, 254–266.

  12. Erbisti, P.C.F. Design of Hydraulic Gates; CRC Press: Boca Raton, FL, USA, 2014; pp. 231–234.

  13. Serikbaev, B.S.; Barayev, F.A.; Sherov, A.G.; Serikbaeva, E.B.; Omarova, G.E.; Djumanazarova, A.T. Gidromeliorativ tizimlardan foydalanish; TIMI: Tashkent, Uzbekistan, 2014; 295 p.

  14. Sauida, M.F. Calibration of Submerged Multi-Sluice Gates. Alexandria Engineering Journal 2014, 53(3), 663–668.

  15. Rajaratnam, N.; Subramanaya, K. Flow Equations for the Sluice Gate. Journal of Irrigation and Drainage Engineering, ASCE 1967, 93, 167–186.

  16. Rao, R.V.; Zhmud, V.A. The Review of the Indo-Russian Joint Workshop on Computational Intelligence and Modern Heuristics in Automation and Robotics. Scientific Bulletin of NSTU 2010, 4(41), 179–182.

About the Authors

И.Зокиров
National Research University "Tashkent Institute of Irrigation and Agricultural Mechanization Engineers"
И.Журабоев
National Research University "Tashkent Institute of Irrigation and Agricultural Mechanization Engineers"
М.Отахонов
Laboratory of Hydraulics and Hydrometry, Smart Solution System LLC
Д.Абдураимова
National Research University "Tashkent Institute of Irrigation and Agricultural Mechanization Engineers"

License

Copyright (c) 2026 Gidravlika va atrof-muhit muhandisligi jurnali

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Long-Term Dynamics of the Hydrological Regime of the Chirchiq River. (2026). Journal of Hydraulic and Environmental Engineering, 4(1), 48-57. https://doi.org/10.35938/jhee-2026-1-00004 (Original work published 2026)

Most read articles by the same author(s)

Similar Articles

You may also start an advanced similarity search for this article.


ISSN 2181-3949 (Online)