共查询到20条相似文献，搜索用时 15 毫秒
1.
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
2.
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
3.
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
4.
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
5.
N. P. Bulgakov R. A. Yaroshenya E. A. Skripaleva L. A. Voskresenskaya 《Physical Oceanography》2000,11(1):65-78
On the basis of the many-year-average seasonal data array of temperature and salinity presented on a scale of one-degree averaging,
by using a special quantitative criterion, we reveal a climatic frontal zone and determine both its physical and hydrological
characteristics (such as the length width, and thickness of the frontal layer and the temperature, salinity, and density gradients)
and its geographic coordinates. The many-year average seasonal variability of these characteristics is analyzed.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
6.
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
7.
We discuss the results of analysis of published data and field and laboratory investigations aimed at the solution of the
problem of comparabilityof the results of detection of hydrogen sulfide in the Black Sea by spectrophotometric and iodometric
methods. We show that the reproducibility of the results of spectrophotometric analysis is higher than hat of the iodometric
method only in the case where the content of sulfide in a sample is less than 10–30 μMl−1. When larger concentrations are involved, the traditional iodometric analysis proves to be the most precise and reliable
method for the detection of hydrogen sulfide in the Black-Sea waters.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
8.
On the basis of the analysis of the data of hydrological observations, we construct an empirical dependence of the vertical
heat fluxQ on the temperature gradientT
z
. The integral advective-diffusive transfer is taken into account by the method of Kolesnikov. We obtain a generalized dependence
of the coefficient of vertical thermal diffusivityK
z
onT
z
and note that the well-known Rossby-Montgomery relation and Kolesnikov formula are its special cases. We analyze the possibility
of application of this dependence to linear and nonlinear problems of thermal conductivity and diffusion in the ocean.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
9.
We propose a method for the adaptive numerical analysis of current velocities in a basin including a shelf zone and having
a lengthy open boundary with the sea, at which the current velocity is not given. This method is based on a multilayer quasiisopycnic
model. We use an approach according to which one introduces additional terms of the source type into the equations of heat
and salt transfer and the equation of evolution of the thicknesses of layers. We describe the results of calculations of the
current velocities in the northwest part of the Black Sea in June on the basis of climatic data. We also analyse specific
features of thermohaline and dynamic structure of waters.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
10.
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
11.
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
12.
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
13.
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
14.
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
15.
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
16.
A brief survey of the thirty-year history of creation and development of hydrologic probes at the Marine Hydrophysical Institute
of the Ukrainian Academy of Sciences is given. We describe problems arisen before developers and analyze the principles of
design of equipment, algorithmic support, software for data processing, and methodological and metrological support. The results
of intercalibration and application of probes in expeditions are presented.
Translated by Peter V. Malvshev and Dmitry V. Malyshev 相似文献
17.
18.
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
19.
Yu. G. Yurovsky 《Physical Oceanography》2000,10(3):283-286
For the submarine springs of underground water located in the karst cavities of Cape Aiya, we suggest a solution based on
the modification of the model of flow rate of water and application of the formulas of mixing. We also give methodical recommendations
helpful for the reliable determination of empirical parameters under thein situ conditions.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献
20.
We study the procedures aimed at decreasing the dynamic errors of the evaluation of salinity with the help ofCTD-probes by reducing the difference between the amplitude-phase characteristics of temperature and conductivity sensors. This
is attained by introducing a delay between the times of scanning the sensors. To make the amplitude characteristics as close
as possible, we propose to use temperature sensors distributed in the direction of probing. We present the procedures used
to determine the optimal parameters of temperature sensors and the length of time delay. The advantages of the proposed method
are demonstrated by analyzing a numerical example.
Translated by Peter V. Malyshev and Dmitry V. Malyshev 相似文献