A numerical model of interaction between atmospheric and oceanic boundary layers

Lykossov, V.N.; Platov, G.A.

Авторы: Lykossov V.N., Platov G.A.
Журнал: Russian Journal of Numerical Analysis and Mathematical Modelling
Том: 7
Номер: 5
Год издания: 1992
Издательство: V S P
Местоположение издательства: Netherlands
Первая страница: 419
Последняя страница: 440
DOI: 10.1515/rnam.1992.7.5.419
Аннотация: A one-dimensional coupled model of atmospheric and oceanic boundary layers is described. Within the frames of the K-theory, the model is based on one of two closure types. We either use the turbulent kinetic energy equation and set the turbulence scale (the so-called 'e-l' model), or employ the dissipation rate equation (the 'e-epsilon' model). In the atmospheric block of the model, we separate out a near-water boundary constsnt-flux layer, which is descibed using the Monin-Obukhov theory of similarity. Then radiative heat influx is calculated, and cloudiness is inserted, if necessary. Finally, we allow for counter-gradient effects while performing the turbulent closure. In the oceanic part of the model, diffusive heat and salt transport is accomplished on the basis of non-traditional closure that takes into account cross effects: the influence of temperature (salinity) gradient on the salt (heat) transport. The numerical implementation of the model is based on the method of splitting into physical processes, the turbulent-diffusion stage being implemented with a time-implicit scheme that employs (scalar or matrix) factorization as a base method for solving finite-difference analogues of the corresponding equations. The quality of the model is illustrated by comparison of the model results with observation data.
Добавил в систему: Лыкосов Василий Николаевич

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A numerical model of interaction between atmospheric and oceanic boundary layersстатья

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