Features of the Field of Internal Waves on the Abkhazian Shelf of the Black Sea according to Remote Sensing Data and In Situ Measurements

The field of internal waves in the Black Sea is quite significant. The Black Sea shelf is of particular interest, but it has not been studied enough in some specific regions. For example, a narrow and steep shelf of Abkhazia has been poorly explored. Particularly unexplored are the actual parameters...

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Bibliographic Details
Published inJournal of marine science and engineering Vol. 10; no. 10; p. 1342
Main Authors Serebryany, Andrey, Khimchenko, Elizaveta, Zamshin, Viktor, Popov, Oleg
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.10.2022
Subjects
Data acquisition
Data analysis
In situ measurement
inertial and short-period internal waves
Internal waves
Landsat
Landsat satellites
line temperature sensors
optical imagery
Parameters
Propagation
Remote sensing
Remote sensing systems
River plumes
Rivers
Satellite imagery
satellite oceanography
Satellites
shelf
Shelving
Solitary waves
Solitons
Temperature sensors
Water area
Wave packets
Wave trains
Abkhazia Georgia (country)
Black Sea
Georgia (country)
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Summary:The field of internal waves in the Black Sea is quite significant. The Black Sea shelf is of particular interest, but it has not been studied enough in some specific regions. For example, a narrow and steep shelf of Abkhazia has been poorly explored. Particularly unexplored are the actual parameters and causes of the generation of internal waves in this area. In this article, we have attempted to fill this gap by analyzing remote sensing data and in situ data. An analysis of a set of optical multispectral satellite images (Sentinel-2, Landsat-8) and a collection of sea-truth data of the shelf zone of Abkhazia was carried out to identify features of internal wave fields of this region. In situ data were acquired over 9 years using ADCP, CTD, and SVP probes and moored stations with point and line temperature sensors. It is shown that internal waves are widespread on the Abkhazian shelf. They appear as trains of short-period waves (as a rule, soliton-like). The quantitative parameters and features of internal waves are shown and analyzed. The form of manifestation and direction of internal wave trains’ travel depend on the mechanisms of their origin, among which are the transformations of inertial internal waves, generation by river plumes, and submesoscale structures. In general, the article is the most complete and relevant study of the field of internal waves on the shelf of Abkhazia.
ISSN:2077-1312
2077-1312
DOI:10.3390/jmse10101342