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  • 1995-1999  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Mathematical models for the study of interactions in the system lake baikal-atmosphere of the region (1999)
    Springer
    Journal of applied mechanics and technical physics 40 (1999), S. 308-316 
    Details
    ISSN: 1573-8620
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The structure of mathematical models for studying the processes of thermodynamics and transfer of pollutants in a climatic system involving the atmosphere of an industrial region and a lake is presented. These models are used to solve the problems of climatic and ecological monitoring and prediction. The problems of constructing numerical schemes and simulation methods are discussed. An example for estimating the effect of pollutants from sources located in the northern hemisphere of the Earth on the Baikal region is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02468528
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of the coriolis force on convection in a deep lake: Numerical experiment (1998)
    Springer
    Journal of applied mechanics and technical physics 39 (1998), S. 593-599 
    Details
    ISSN: 1573-8620
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Convection in a deep lake at temperatures close to the temperature of maximum density (TMD) is studied on the basis of a quasi-two-dimensional nonhydrostatic model of hydrothermodynamics with allowance for the compressibility of water. The rotation of the Earth is accounted for in the model by two components of the Coriolis force. Convection in deep lakes is influenced by the fact that theTMD is found to be dependent on pressure and salinity. Results are compared from three numerical experiments: without allowance for the Coriolis force, and with one and two Coriolis parameters. The results demonstrate the substantial effect of the Coriolis force, which shows the need to account for it in modeling convective processes in natural objects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02471254
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  • 3
    Electronic Resource
    Electronic Resource
    Mathematical modelling of Lake Baikal hydrodynamics (1999)
    Springer
    Hydrobiologia 407 (1999), S. 37-43 
    Details
    ISSN: 1573-5117
    Keywords: deep lake ; hydrodynamics ; numerical modelling ; Baikal
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The paper summarizes our work on numerical modelling of Lake Baikal hydrodynamics. Two basic models are briefly described here. One of them is a time-dependent, free-surface model of variable density. As a deep lake is discussed, a nonlinear equation of state is used in which the density is a function both of temperature and pressure. One of the main applications of the model was for the climatic circulation of the lake. The scenario approach was applied for this purpose. The parameterization of atmospheric forcing was carried out by means of statistical methods on the basis of a meteorological classification of the pressure and wind fields above the lake. The second model is intended for the direct modelling of the convective movement in a deep temperate lake. The non-hydrostatic (NH) assumption is involved in it. Water is considered to be compressible. The results of numerical experiments with the 2D version of the NH model are discussed. The focus is on the features of the thermal bar in Lake Baikal in connection with the deep water renewal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003766220781
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