Abstract
The paper shows that the lower reaches of the Varzuga River (Terskii coast of the White Sea) are subject to a strong effect of sea tides, which can be seen in level variations and the periodic occurrence of reverse (tidal) currents and saltwater intrusions. The data was obtained during the expedition carried out in winter 2020 at the estuary of the Varzuga River along with data collected by the authors at the estuaries of other rivers in the White Sea basin (the Mezen, Onega, Umba, Kyanda, Tamitsa, and Kuzreka rivers) in 2017−2019. In this context, characteristics of the processes mentioned above are given and the factors that affect them (channel relief, river flow, tides, and ice) are discussed.
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ACKNOWLEDGEMENTS
The authors express gratitude to A.P. Khromov and L.N. Chepur (Umba WS) for providing archive data, A. Dvinin and I. Deryabina (Kuzomen village) for providing residential premises, N.A. Kozhin (Umba village) for advice and assistance to the expedition, and N.A. Demidenko and A.V. Dunyushin for support and assistance in organizing the expedition.
Funding
The expedition was financially supported under the Government Order to the Department of Land Hydrology and by the scientific student society of the Faculty of Geography and private sponsors.
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Terskii, P.N., Gorin, S.L., Panchenko, E.D. et al. The Tidal Estuary of the Varzuga River (Russian Subarctic): First Information about the Winter Hydrological Regimе. Water Resour 51, 1–11 (2024). https://doi.org/10.1134/S0097807823700677
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DOI: https://doi.org/10.1134/S0097807823700677