Abstract
We study the spreading of wastewaters from an underwater source in a stratified coastal environment using the results of satellite monitoring and mathematical modeling. The problem is considered as applied to deepwater discharge in the region of Golubaya Bay of the Black Sea near Sebastopol. The main factors preventing upwelling of pollution to the sea surface are analyzed on the basis of a numerical model. It is shown that peculiarities of wastewater spreading depend on the character of stratification and velocity of the background current. The main factor influencing the uplift of these waters to the surface is the existence of water layers with high vertical gradients of water density. We reveal the structure of the wastewater field consisting of a plume and a jet extended in the direction of the background current, which is located in the density interface. If stratification is weak, the plume may reach the sea surface and form a local region of water pollution, which is recorded in multispectral satellite images. It is found that the mass of polluted waters is characterized by negative anomalies of temperature and salinity.
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Original Russian Text © V.G. Bondur, V.A. Ivanov, V.V. Fomin, 2018, published in Izvestiya Rossiiskoi Akademii Nauk, Fizika Atmosfery i Okeana, 2018, Vol. 54, No. 4, pp. 453–461.
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Bondur, V.G., Ivanov, V.A. & Fomin, V.V. Peculiarities of Polluted Water Spreading from a Submarine Source in Stratified Coastal Environment. Izv. Atmos. Ocean. Phys. 54, 386–393 (2018). https://doi.org/10.1134/S0001433818040205
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DOI: https://doi.org/10.1134/S0001433818040205