Physical Oceanography, Vol.
2, July, 2011 (Ukrainian Original No.
2, March–April, 2011)
ANALYSIS OF OBSERVATIONS AND METHODS FOR CALCULATING
HYDROPHYSICAL FIELDS IN THE OCEAN
EXTREME DEVIATIONS OF THE SEA LEVEL AND THE VELOCITIES OF
CURRENTS INDUCED BY CONSTANT WINDS IN THE AZOV SEA
V. A. Ivanov,
L. V. Cherkesov,
and T. Ya. Shul’ga
By the method of numerical modeling, we study the influence of the velocity of constant wind on the
currents and oscillations of level in the Azov Sea. A three-dimensional nonlinear numerical model is
applied to determine the regions characterized by the maximum and minimum values of the velocities of
surface stationary currents and the highest deviations of level in the open part of the Azov Sea. In the
presented maps, we indicate the points of the water area, where the extreme values of deviations of the
sea level and the highest current velocities are attained. We analyze the influence of the velocity of con-
stant wind on the time of attainment of the extreme values of elevations and lowerings of the sea level
and current velocities.
Keywords: numerical modeling,
-coordinate model, surge processes, surface currents, extreme devia-
tions of the sea level.
The investigation of oscillations of the sea level is connected with various scientific and practical problems,
including the construction of coastal hydraulic structures, plotting of marine navigation charts, prediction of
floods, and determination of motion of the coasts. The solution of some applied problems is connected with the
necessity of determination of the location of extreme deviations of the sea level in the entire water area of the
Azov Sea. It is also of interest to find the regions of the sea characterized by the highest velocities of the sta-
tionary wind-induced currents.
The problem of extremely high and low levels of the surge recorded at different coastal stations and the
highest velocities of induced currents was analyzed in numerous works devoted to the study of currents and
waves in the Azov Sea. Thus, the problem of surge oscillations in the Azov Sea under the action of constant
winds was solved in  by using a three-dimensional nonlinear
-coordinate mathematical model. Similar in-
vestigations were also carried out in  for nonstationary wind fields and in  for the disturbances induced by
the passage of cyclones.
In the present work, on the basis of the analysis of the results of numerical experiments performed by using
the above-mentioned model, we determine the regions characterized by the maximum variations of the sea level
and the velocities of stationary currents induced by constant winds in the open part of the Azov Sea.
Marine Hydrophysical Institute, Ukrainian Academy of Sciences, Sevastopol, Ukraine.
Corresponding author; e-mail: email@example.com.
Translated from Morskoi Gidrofizicheskii Zhurnal, No.
24–32, March–April, 2011. Original article submitted November 13, 2009;
revision submitted April 27, 2010.
98 0928–5105/11/2102–0098 © 2011 Springer Science+Business Media, Inc.