Section

Geoecology

Title

THE ASSESSMENT OF THE POSSIBLE EXTENT OF THE POLLUTION OF THE MESO-MACROTIDAL ESTUARIES OF THE WHITE SEA RIVERS BY EMERGENCY OIL

Сontributors

I. V. Miskevich, Ph. D. (Geography), Dr. Habil., Leading Researcher of the North-Western Branch of the P. P. Shirshov Institute of Oceanology, This email address is being protected from spambots. You need JavaScript enabled to view it..

Abstract

The paper presents the scheme of calculating the distribution of the concentrations of petroleum hydro-carbons in the estuaries of the White Sea rivers during the water full tidal cycle involving the data on the salinity of the estuarine waters. It is a logical complement to the mathematical modeling of the effects of the migration of oil spills along the seashore. This scheme is suitable for the application in the meso-macrotidal estuaries with shallow estuarine seaside with the absence of the halocline. The ar-ticle describes the results of the corresponding calculations for the estuary of the Kyanda in the Onega Bay and the estuary of the Chizha in the Mezen Bay. They show that the most dramatic reduction of the pollution of the estuaries is observed at the beginning of the mixing zone of the river and sea waters. The most vulnerable ones for oil pollution are the estuaries with the largest tide, which are located in the Mezen Bay and the southern part of the White Sea Voronka. The area of the estuarine water pollution by emergency oil may exceed the size of the area of their salinization.

For the successful implementation of the proposed scheme, it is recommended to study the processes of salinization of the poorly studied estuaries of small and medium rivers in the areas of heavy navigation.

Keywords

oil, transfer, tide, estuary, model, salinity, pollution.

References

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