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Vestnik Tomskogo Gosudarstvennogo Universiteta. Matematika i Mekhanika, 2020, Number 66, Pages 35–55
DOI: https://doi.org/10.17223/19988621/66/3
(Mi vtgu787)
 

This article is cited in 8 scientific papers (total in 8 papers)

MATHEMATICS

Mesoscale meteorological model TSUNM3 for the study and forecast of meteorological parameters of the atmospheric surface layer over a major population center

A. V. Starchenko, A. A. Bart, L. I. Kizhner, E. A. Danilkin

National Research Tomsk State University, Tomsk, Russian Federation
Full-text PDF (657 kB) Citations (8)
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Abstract: The paper describes the mathematical formulation and numerical method of the TSUNM3 high-resolution mesoscale meteorological model being developed at Tomsk State University. The model is nonhydrostatic and includes three-dimensional nonstationary equations of hydrothermodynamics of the atmospheric boundary layer with parameterization of turbulence, moisture microphysics, long-wave and short-wave (solar) radiation, and advective and latent heat flows in the atmosphere and at the boundary of its interaction with the underlying surface.
The numerical algorithm is constructed using structured grids with uniform spacing in horizontal directions and condensing to the Earth surface in the vertical direction. When approximating the differential formulation of the problem, the finite volume method with the second order approximation in the spatial variables is used. Explicit-implicit approximations in time (Adams-Bashforth and Crank-Nicolson) are used to achieve second-order accuracy in time.
The paper presents results of numerical forecasting of the main meteorological parameters of the atmosphere (temperature, humidity, wind speed and direction) and precipitation in different seasons in the Siberian region. The models were tested with the help of observations obtained using the Volna-4M sodar, MTR-5 temperature profile meter, and Meteo-2 ultrasonic weather stations of the Atmosfera Collective Use Center.
The improved TSUNM3 model is shown to adequately reflect the precipitation time and intensity. However, in some cases, the times of its beginning and end do not always coincide, the difference can reach several hours. The precipitation phase state is reflected reliably. Over 70% of precipitation cases are confirmed by numerical calculations. The model satisfactorily predicts temperature and humidity characteristics. The quality of the precipitation forecast model is comparable to the modern mesoscale models, such as the Weather Research and Forecasting (WRF) model.
Keywords: mathematical modeling of atmospheric processes with high resolution, comparison of calculations with measurements of the Atmosfera Collective Use Center.
Funding agency Grant number
Russian Science Foundation 19-71-20042
The work was supported by the Russian Science Foundation (project no. 19-71-20042).
Received: 10.03.2020
Bibliographic databases:
Document Type: Article
UDC: 519.6, 551.509.3
MSC: 65M08, 86A10
Language: Russian
Citation: A. V. Starchenko, A. A. Bart, L. I. Kizhner, E. A. Danilkin, “Mesoscale meteorological model TSUNM3 for the study and forecast of meteorological parameters of the atmospheric surface layer over a major population center”, Vestn. Tomsk. Gos. Univ. Mat. Mekh., 2020, no. 66, 35–55
Citation in format AMSBIB
\Bibitem{StaBarKiz20}
\by A.~V.~Starchenko, A.~A.~Bart, L.~I.~Kizhner, E.~A.~Danilkin
\paper Mesoscale meteorological model TSUNM3 for the study and forecast of meteorological parameters of the atmospheric surface layer over a major population center
\jour Vestn. Tomsk. Gos. Univ. Mat. Mekh.
\yr 2020
\issue 66
\pages 35--55
\mathnet{http://mi.mathnet.ru/vtgu787}
\crossref{https://doi.org/10.17223/19988621/66/3}
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  • https://www.mathnet.ru/eng/vtgu/y2020/i66/p35
  • This publication is cited in the following 8 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Вестник Томского государственного университета. Математика и механика
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    Abstract page:141
    Full-text PDF :60
    References:24
     
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