Physical Oceanography, Vol. 15, No. 4, 2005
ANALYSIS OF OBSERVATIONS AND METHODS FOR CALCULATING
HYDROPHYSICAL FIELDS IN THE OCEAN
INVESTIGATION OF FRONTAL ZONES IN THE KARKINITSKII BAY
L. D. Pukhtyar
On the basis of the data from the databank of the Marine Hydrophysical Institute of the Ukrain-
ian National Academy of Sciences and the data of regional marine hydrometeorological stations,
we present the characteristics of the seasonal variability of temperature and salinity frontal zones
and background gradients in waters of the Karkinitskii Bay. We determine the locations of the
frontal zones, the values of their gradients, horizontal scales, repetition, connection with weather
conditions, inflow, and direction of propagation of salt and freshened waters in the bay in differ-
ent seasons of the year.
The available information on the thermohaline structure of waters of the Karkinitskii Bay is based mainly
on the data on the structure and dynamics of waters of the entire northwest part of the Black Sea. There are only
several works devoted to the analysis of specific features and variability of the thermohaline structure and dy-
namics of waters in the Karkinitskii Bay and its parts [1–4]. However, these works do not contain detailed data
on the temperature and salinity frontal zones formed in the bay.
At the same time, the influence of this phenome-
non on the dynamic processes is significant and, hence, should be investigated in more details. Note that recent
years are marked by the appearance of several new works devoted to the investigation of frontal zones in the
northwest and east parts of the Black Sea [5–6].
In the present work, the data of investigation of the space distributions of temperature and salinity in the
upper mixed layer of the Karkinitskii Bay are used to analyze the conditions of formation and the parameters of
the surface frontal zones in different seasons of the year depending on the meteorological conditions. Thus, we
use the hydrological data from the databank of the Marine Hydrophysical Institute (accumulated for the Karki-
nitskii Bay in 1923–1995), the meteorological data of the Chernomorskoe (1900–1995), Khorly, and Ska-
dovsk (1939–1987) marine hydrometeorological stations, the data from the databank of the Marine Department
of the Ukrainian Scientific-Research Hydrometeorological Institute, and the statistical data on the wind condi-
tions in the region of the Karkinitskii Bay published in . The available data are nonuniformly distributed over
Thus, the specific features of the space distributions of temperature and salinity over the water area of the
bay in winter are analyzed according to the data of 5 surveys carried out for
with the number of stations
varying from 6 to 16. For this reason, the results obtained for winter can be regarded only as rough estimates.
Marine Hydrophysical Institute, Ukrainian Academy of Sciences, Sevastopol.
Translated from Morskoi Gidrofizicheskii Zhurnal, No.
30–42, July–August, 2005. Original article submitted November 11,
2003; revision submitted June 16, 2004.
220 0928-5105/05/1504–0220 © 2005 Springer Science+Business Media, Inc.