Premium
A refined semi‐Lagrangian vertical trajectory scheme applied to a hydrostatic atmospheric model
Author(s) -
Gospodinov I.,
Spiridonov V.,
Bénard P.,
Geleyn J.F.
Publication year - 2002
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1256/00359000260498905
Subject(s) - acceleration , hydrostatic equilibrium , trajectory , advection , lagrangian , scheme (mathematics) , horizontal and vertical , meteorology , atmospheric dynamics , atmospheric model , jet (fluid) , mechanics , mathematics , environmental science , geodesy , physics , geology , mathematical analysis , classical mechanics , atmosphere (unit) , quantum mechanics , astronomy , thermodynamics
An explicit estimate of the vertical acceleration in a hydrostatic atmospheric model is necessary in order to extend the application of the uniform acceleration two‐time‐level semi‐Lagrangian trajectory scheme of Gospodinov et al. to the vertical direction. It has been diagnosed from the continuity equation. The trajectory scheme proposed, together with the vertical acceleration, has been tested for the so‐called ‘Baltic jet’ case which is dominated by horizontal advection. Enhanced quality has been demonstrated. Copyright © 2002 Royal Meteorological Society.