caa a22 4500 378879472 CHVBK 20180305123428.0 cr unu---uuuuu 161128e20030801xx s 000 0 eng 10.1515/156939803769210993 doi (NATIONALLICENCE)gruyter-10.1515/156939803769210993 Tolstykh M. A. ∗ Institute of Numerical Mathematics, Russian Academy of Sciences, Moscow GSP-1, 119991, Russia Variable resolution global semi-Lagrangian atmospheric model [Elektronische Daten] [M. A. Tolstykh] The variable resolution in latitude was implemented in the 3D global semi-Lagrangian finite difference numerical weather prediction model SL-AV. The implementation of the variable resolution is demonstrated by one of the model blocks, where the velocity field is reconstructed from vorticity and divergence. This block includes the solution of the Poisson equations on the sphere. Then this approach is validated in the context of a shallow-water model on the sphere by the set of standard tests. The results of the series of five-day forecasts by the 3D model show the benefit of using the variable resolution version of the model for three-day forecasts over Russia. Copyright 2003, Walter de Gruyter Russian Journal of Numerical Analysis and Mathematical Modelling Walter de Gruyter 18/4(2003-08-01), 347-361 0927-6467 18:4<347 2003 18 rnam https://doi.org/10.1515/156939803769210993 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/156939803769210993 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Tolstykh M. A. ∗ Institute of Numerical Mathematics, Russian Academy of Sciences, Moscow GSP-1, 119991, Russia NATIONALLICENCE 773 0- Russian Journal of Numerical Analysis and Mathematical Modelling Walter de Gruyter 18/4(2003-08-01), 347-361 0927-6467 18:4<347 2003 18 rnam CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter