A Vertical Splitting Scheme for Nonhydrostatic Atmospheric Model
نویسنده
چکیده
In this study, a numerical solution of nonhydrostatic atmospheric equations is considered. A robust semi-implicit approach with additional time splitting is applied in order to construct computationally efficient and accurate numerical scheme for modeling of large-scale atmospheric dynamics. Description of the designed numerical algorithm is provided and its accuracy and stability are discussed. The main properties of the scheme are compared to the respective properties of more traditional algorithms. Performed numerical experiments with the actual atmospheric data of pressure, temperature and wind show that the developed scheme supplies accurate forecast fields for the increased time steps chosen in accordance with the physical requirements.
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