ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2020, Vol. 17, No. 3, pp. 211-220

Assessment of contamination risks of the southeastern Black Sea surface due to natural hydrocarbon showings from the seabed

M.I. Mityagina 1 , O.Yu. Lavrova 1 
1 Space Research Institute RAS, Moscow, Russia
Accepted: 16.06.2020
DOI: 10.21046/2070-7401-2020-17-3-211-220
In this paper, we present some issues of further development of satellite remote sensing techniques. We discuss the advanced use of satellite remote sensing for detection and observing of oil films on the sea surface due to natural hydrocarbon showings at the seabed. The study is based on satellite SAR data and data of multispectral satellite sensors in the optical range obtained in the course of the long-term satellite survey of the southeastern part of the Black Sea. The region of interest covers a water area over the continental shelf off the Georgian coast in the Poti — Batumi region. A cluster of natural hydrocarbon seepages at the seabed is located here, and this region is one of the zones of the most severe oil pollution of the Black Sea surface. Based on the analysis of satellite data, we put together probability maps that allow assessing the risks of oil pollution of the sea surface in the vicinity of natural oil seepages in the southeastern Black Sea. High-risk areas of the sea surface oil pollution, as well as areas exposed to potential risks, are outlined. One of our further results is the discovery of significant seasonal variability in the spatial distribution of natural oil films under the influence of the dominant direction of surface currents in the area of interest at the various periods. It is shown that the seasonal variability should be taken into account when assessing the risks of oil pollution of the sea surface and the seashore.
Keywords: the Black Sea, satellite remote sensing, sea surface, oil pollution, natural hydrocarbon showings from the seabed
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