A. I. Ginsburg*, E. A. Kontar’*, A. G. Kostyanoi*, V. G. Krivosheya**,
D. M. Solov’ev***, S. V. Stanichnyi***, and S. Yu. Laptev**
* Shirshov Institute of Oceanology (IO), Russian Academy of Sciences, Nakhimovskii pr. 23, Moscow, 117218 Russia
** Southern Branch, Shirshov Institute of Oceanology, Russian Academy of Sciences, Gelendzhik, Russia
*** Marine Hydrophysical Institute, National Academy of Sciences of Ukraine,
Kapitanskaya ul. 2, Sevastopol, Crimea, 335000 Ukraine
Received May 6, 1996
Abstract—Analysis of NOAA 11 satellite images (April–August 1993) and CTD measurements carried out
from aboard the R/V Akvanavt on June 16–17, 1993, over the continental slope west of Sevastopol, showed that
two anticyclonic eddies can exist together without coalescing in the 0- to 300-m layer. One of the eddies was a
quasi-stationary one, while the other had a comparatively short lifetime (1.5 months). The diameters of the
eddies were 90 and 55 km, respectively. Collapse of the less intensive anticyclone occurred when it was dis-
placed to the shelf area by a quasi-stationary eddy. The formation of a cyclone north of the anticyclonic pair of
eddies when they draw together leads to the appearance of counterflow streams between the eddies of different
signs both in the upper layer (0–150 m) and at greater depths with the core of the stream located at a depth of
150 m. This facilitates horizontal exchange between the shelf and the open part of the sea.
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