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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, 2014, Vol. 11, No. 3, pp. 88-104

Observations of internal waves at Caucasian and Crimean shelves of the Black Sea in summer 2013

А.N. Serebryany1 , E.E. Khymchenko2 
1 N.N. Andreyev Acoustics Institute, Moscow, Russia
Space Research Institute RAS, Moscow, Russia
2 P.P. Shirshov Institute of Oceanology RAS, Moscow, Russia
Review of results of internal waves investigations carried out during summer season in the three regions of the Black Sea is presented. Observations were made in Gelendgik, Sukhum and Katsively regions having significant differences in shelf relief. The measurements were carried out by long-time moorings with vertical thermistor chains, as well as by surveys on cross sections from small vessels equipped with acoustic Doppler current profiler (ADCP “Rio Grande 600 kHz”). Miniprobe of sound velocity and temperature (miniSVP) was used for thermocline position observation. Some part of observations was made from stationary platforms (in Katsively and Sukhum). Inertial and short-period internal waves were registered in all regions. There were revealed internal inertial waves of biggest amplitude on the narrow Abkhazian shelf. Separated cases of second-mode oscillations identified both in inertial and short-period internal waves. The most often occasions of 2-mode waves were met on the Crimean shelf. Detailed measurements of internal bore were made at Crimean shelf. The main features of internal wave fields for each of the three regions are compared. The features of surface manifestations of observed internal wave phenomena are discussed.
Keywords: internal waves, fronts, internal bores, inertial waves, second-mode waves, currents, shelf, ADCP
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