Physical Oceanography, Vol. 19, No. 5, 2009
PRELIMINARY RESULTS OF THE EXPEDITION OF THE MARINE
HYDROPHYSICAL INSTITUTE OF THE UKRAINIAN NATIONAL
ACADEMY OF SCIENCES ON THE R/V ÉKSPERIMENT IN THE
NORTHWEST PART OF THE BLACK SEA IN MAY 2007
A. B. Polonskii and G. F. Dzhiganshin
In May 2007, the Marine Hydrophysical Institute of the Ukrainian National Academy of Sci-
ences carried out an oceanographic expedition in the northwest sector of the Black Sea. This ex-
pedition originates a series of surveys scheduled for this region. It was realized within the fra-
mework of national and international projects, such as Climate, Ecoshelf, Stable Ecosystem,
SESAM, ECOOP, and Oceanography. We present the data on the works carried out in this ex-
pedition and perform a brief analysis of the process of subduction of waters on the northwest
shelf. It is shown that, despite the abnormally warm preceding autumn–winter period, the well-
pronounced subduction of waters formed in the process of autumn–winter cooling was still ob-
served over the drop of depth along the isopycnic surfaces
2007. New data on the intensity of vertical turbulent exchange over the continental slope in the
northwest part of the Black Sea are obtained.
In 2007, the Marine Hydrophysical Institute of the Ukrainian National Academy of Sciences renewed re-
gular cruises of the R/V Éksperiment in the northwest part of the Black Sea and near the South Coast of Crimea.
In total, five complex surveys were performed in 2007 with a general aim of the solution of fundamental prob-
lems of the regional oceanography of the Black Sea and various applied problems. The aims of the expedition
were determined by the problems solved within the framework of several national and international projects,
such as Climate, Ecoshelf, Stable Ecosystem, SESAM, ECOOP, and Oceanography, realized with participa-
tion of the Marine Hydrophysical Institute of the Ukrainian National Academy of Sciences. They can be formul-
ated as follows:
— investigation of the mechanism of subduction of shelf waters into the open part of the sea and the trans-
formations of waters of the cold intermediate layer of different nature;
— analysis of the seasonal evolution of the Sevastopol anticyclonic eddy;
— climatic monitoring of the active layer of the Black Sea in the secular Chersonese–Bosporus section;
— evaluation of the intensity of vertical turbulent exchange over the continental slope in the northwest part
of the Black Sea;
— accumulation of the information required for the validation of the altimetry satellite data and prognostic
Marine Hydrophysical Institute, Ukrainian National Academy of Sciences, Sevastopol, Ukraine.
Translated from Morskoi Gidrofizicheskii Zhurnal, No.
47–52, September–October, 2009. Original article submitted March 18,
310 0928-5105/09/1905–0310 © 2009 Springer Science+Business Media, Inc.