HYDRODYNAMICS AND WATER EXCHANGE FEATURES OF BLAGOPOLUCHIYA BAY (SOLOVETSKY ISLANDS, WHITE SEA)

Lukina, Yu. N., Bogdanov, S. R., Zdorovennov, R. E., Tolstikov, A. V., Galakhina, N. E., Novikova, Iu. S., Zdorovennova, G. E.

Northern water problems Institute of Karelian Reseacrh Centre of the Russian Academy of Sciences (Petrozavodsk, Russian Federation)

The article was received on January 20, 2026

Bibliographic description: Lukina Yu. N., Bogdanov S. R., Zdorovennov R. E., Tolstikov A. V., Novikova Iu. S., Zdorovennova G. E. Hydrodynamics and water exchange features of Blagopoluchiya Bay (Solovetsky Islands, White Sea). Arctic: Ecology and Economy, 2026, vol. 16, no. 3, pp. 439—451. DOI: 10.25283/2223-4594-2026-16-439-451. (In Russian).

Abstract:  Based on an analysis of in-situ measurements of water temperature, salinity, turbidity, solar radiation fluxes in the water column, and currents, the distribution patterns of wastewater and seawater in Blagopoluchiya Bay (Solovetsky Islands, White Sea) were identified. The bay’s water exchange period was estimated at 14 days during the open-water and over 30 days during the freeze-up period. For the enclosed bay, the effective horizontal turbulent diffusion coefficient, Kx, ~0.02 m2/s, was estimated, significantly lower than typical values for shelf seas. Possible mechanisms of water transport within the bay are considered. 

Keywords: White Sea, Solovetsky Islands, Arctic environment, anthropogenic impact, water exchange period, tidal phenomena, water salinity, water temperature, solar radiation, currents

Funding:  The study was carried out under the state assignment of the Northern water problems Institute of the Karelian Research Center of the Russian Academy of Sciences “State of the coastal ecosystem of the White Sea within the Solovetsky Archipelago” (FMEN 2024-0016).

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