Summary
A method for temperature initialization in the terrainfollowing coordinate models from pressure gradient force interpolated from constant pressure surface is considered. A non-unique solution of initial temperature obtained from regularized interpolated pressure gradient force, is discussed. An approximative procedure for defining unique temperature is presented. The proposed method is tested using real data. The obtained results show advantages of the proposed technique compared with the initial temperature calculation based on interpolated geopotential via hydrostatic equation.
Zusammenfassung
Es wird eine neue Methode zur Initialisierung des Temperaturfeldes mit Hilfe der Druckgradientkraft in einem numerischen Modell, dessen Koordinaten der Topographie folgen, vorgestellt. Die Methode wurde anhand realen Datenmaterials getestet und es zeigen sich Vorteile gegenüber der konventionellen Initialisierung des Temperaturfeldes mit Hilfe der hydrostatischen Grundgleichung.
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Mihailović, D.T. Pressure gradient force and calculation initial temperature in terrain-following coordinate models. Meteorl. Atmos. Phys. 35, 53–58 (1986). https://doi.org/10.1007/BF01029523
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DOI: https://doi.org/10.1007/BF01029523