共查询到20条相似文献，搜索用时 15 毫秒
1.
On the basis of processing and analysis of the results of many-year observations, we study the process of formation of dome-shaped
isosurfaces of hydrological and hydrochemical characteristics for all depths in the Black Sea. We estimate the roles of the
intensities of sources and sinks of heat and dissolved substances and the general picture of water circulation, vertical exchange,
meso- and small-scale anticyclonic vorticity, and mud and geothermal flows to the preservation of the dome-shaped form of
the isosurfaces of these characteristics.
Translated by Peter V. Malyshev and Dmitry V. Malyshev. 相似文献
2.
We consider the problem of stable development of natural economical complexes from the viewpoint of basic balances in an ecological
economical system. We construct a basic dynamical model of the complex capable of predicting various scenarios of the industrial
development, consumption of natural resources, and pollution of the environment and propose a mechanism of control over the
process of development by introducing rent payments for the use of natural resources and ecological fines for the pollution
of the environment. The efficiency of the applied model is demonstrated by analysing the process of control over the concentration
of biological resources in marine media as an example. We describe the results of numerical experiments performed to show
the possibility of creation of the information technology of control over marine bioresources.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
3.
On the basis of the generalized data of multiannual observations (1985–1994), we analyze the seasonal variability of the vertical
and spatial distributions and composition (Csos, Nsos, Csos/cha, and C/N) of suspended organic substances (SOS) in the shelf zone and in the upper active layer of the abyssal part of the
Black Sea. The results of our analysis enable us to conclude that only a narrow coastal band of the shelf in the northwest
and west parts of the sea suffers to an extremely pronounced anthropogenic impact, which manifests itself in a significant
increase in the mass of suspended organic substances. The formation of new organic substances and, hence, the mass of suspended
organic substances in these regions attain the level of eutrophic waters in the late-spring and summer periods. In the open-sea
region, the anthropogenic impact is less pronounced and the spatial distribution of suspended organic substances is determined
by the general dynamics of waters and the intensity of phytoplankton production.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
4.
Surface gravity waves formed in the process of motion of an ellipsoidal body submerged in the liquid
O. V. Avramenko 《Physical Oceanography》2000,10(6):533-540
We study the problem of flow around an ellipsoidal body submerged in a liquid half space and obtain the solution for the free
wave surface. The results of numerical analysis reveal the existence of a great variety of modes of motion characterized by
substantially different shapes of the free surface.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
5.
I. N. Okhotnikov 《Physical Oceanography》1999,10(2):169-174
We construct a numerical model of the evolution of the structure of an oceanic thermocline in the presence of “salt-finger”
convection. The model explains the formation of a piecewise homogeneous vertical structure of the temperature and salinity
fields in the ocean.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
6.
V. I. Man’kovsky 《Physical Oceanography》2001,11(5):491-494
We present the parameters of empirical relationships between the depth of visibility of Secchi disk and optical and biological
characteristics of the Black-Sea surface waters.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
7.
We investigate the influence of baroclinic tidal waves on the diffusion of an impurity spot in a continuously stratified liquid.
The equation of turbulent diffusion is solved numerically by taking into account the wave currents. We establish the dependences
of the characteristics of the diffusion process on the parameters of the baroclinic wave and the location of the impurity
spot.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
8.
We study distinctive features of the oceanological conditions in the regions of underwater mountains. These conditions are
used as a basic for the selection of hydrological and biological subcomplexes (aqualandscapes) of these regions.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
9.
We study the influence of baroclinic tidal waves on the diffusion of an impurity spot in a continuously stratified fluid.
The equation of turbulent diffusion is solved numerically by taking into account the wave currents. We establish the dependences
of the characteristics of the diffusion process on parameters of baroclinic waves and the location of the impurity spot.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
10.
On the basis of analysis of literature data, we consider the regularities of sedimentation of suspended organic matter in
shallow waters. The seasonal variability in sedimentation is demonstrated, and its scheme is constructed involving such classes
of organic compounds as suspended amino acids, fatty acids, and hydrocarbons.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
11.
We develop a method for the evaluation of inclinations of the level, which enables one to find them with high accuracy. The
reliability of this method is tested by comparing the numerical solutions for inclinations of the level with analytic expressions.
It is shown that the system of coupled equations for inclinations of the level can be decomposed into two independent equations
with sufficiently high accuracy.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
12.
We study the influence of floating broken ice on the mean nonzero displacements of liquid particles in nonlinear running surface
waves. The analysis is performed on the basis of a uniform asymptotic expansion (up to the quantities of the third order of
smallness as compared with the potential of the velocity of motion of liquid in a basin of finite depth) obtained by the method
of multiple scales.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
13.
We discuss the results of metrological testing of a four-base acoustic current meter performed in a hydrodynamic basin, consider
methodological problems encountered in the process of measurements and data processing, and present the experimental dependences
of the systematic and random components of the measurement errors on the velocity and direction of the flow.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
14.
15.
V. V. Zagorodnii V. L. Launets V. V. Oleinik L. Ya. Repetyuk V. V. Teselkin 《Physical Oceanography》2000,10(5):455-461
We study the possibilities of the method of laser diagnostics of the composition of multicomponent electrolytic solutions.
In our experiments, we used a four-mirror phase-retarded interferometer operating at three wavelengths from the visible range.
For three-component solutions of chloride salts, we determined partial sensitivities of the measuring system to changes in
the concentrations of each electrolyte for each of the indicated wavelengths.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
16.
G. K. Korotaev 《Physical Oceanography》2000,10(6):495-502
We consider the problem of geostrophic adjustment of nonlinear axially symmetric formations in a two-layer fluid with infinitely
deep lower layer and demonstrate the existence of a new integral of motion, which enables us to determine the final equilibrium
state of perturbations without analyzing the transient (wave) stage of the process. It is shown that the final motions caused
by initial perturbations of the opposite signs are not equivalent.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
17.
We discuss the results of numerical experiments modelling the process of propagation of passive impurities from the Karantinnaya
Bay caused by steady wind currents and turbulent diffusion. The currents are computed according to the Felzenbaum model for
the cases of northeast and north-west winds [1, 2]. We analyse specific features of the space and time distribution of the
impurities caused by the three-dimensional character of the currents.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
18.
We describe the principles of design of distributed thermoprofilometers and analyze their characteristics and the required
hardware, algorithms, and software. The capabilities of these instruments in the investigation of temperature fields, vertical
displacements, and the parameters of internal waves are evaluated. The results of measurements and numerical calculations
are presented.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
19.
We analyze oscillations of the Black Sea level at 43 points in the north part of the coast. At some points, the data of every-day
measurements are accumulated for more than 100 years. Actually, at all points with minor exceptions, we observe a general
trend toward an increase in the sea level. The amplitude of oscillations of the sea level about the average trend obeys a
normal distribution. We determine numerical characteristics of this distribution.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
20.
N. P. Bulgakov R. A. Yaroshenya E. A. Skripaleva L. A. Voskresenskaya 《Physical Oceanography》2000,10(4):331-350
Climatic frontal zones are selected in the thermohaline fields of the Tropical Atlantic by analyzing the many-year-average
seasonal database reduced to the nodes of a one-degree grid. We determine physical characteristics of the frontal zones, study
their spatial and temporal variability, and reveal basic regularities of the appearance of frontal zones in the fields of
thermohaline characteristics.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献