Improving the mass conservation in the semi-Lagrangian scheme of the IFS/HARMONIE model

  1. T. Morales, T. Morales 1
  2. Hortal, M. 2
  1. 1 Spanish Meteorological Agency
  2. 2 HIRLAM group
Revista:
Acta de las Jornadas Científicas de la Asociación Meteorológica Española

ISSN: 2605-2199

Año de publicación: 2014

Número: 33

Tipo: Artículo

Otras publicaciones en: Acta de las Jornadas Científicas de la Asociación Meteorológica Española

Resumen

The global forecast model, Integrate Forecast System (IFS), of the European Center for MediumRange Weather Forecast (ECMWF), and the limited-area model, Hirlam Aladin Mesoscale Operation NWP in Europe (HARMONIE), developed by Aladin and Hirlam groups, both solved the 3D primitive equations and the evolution of the components of the atmosphere which are described by a continuity equation whose conserved quantity is the total mass of each component.  These NWP models have the same dynamic kernel, use hydrostatic pressure as the basis of its vertical coordinate and both introduce orography via a terrain-following vertical coordinate at the lowest model levels.  

Referencias bibliográficas

  • Hortal, M (1994), Recent studies of semiLagrangian advection at ECMWF, Technical Memorandum No. 204, Research Department, European Center for Medium-Range Weather Forecast.
  • Hortal, M. (2002) , The development and testing of a new two-time-level semi-Lagrangian scheme (SETTLS) in the ECMWF forecast model. Q. T. R. Meteorol. Soc. 128, 1671-1687
  • Ritchie, H., Temperton, A. Simmons, M. Hortal, T. Davies. D. Dent, M. Hamrud (1995), Implementation of the semi-Lagrangian global spectral model. Q.J. R. Meteorol. Soc. 127, 111127
  • Bermejo R. and A. Staniforth, The Conversion of semi-Lagrangian Advection Scheme to QuasiMonotone Scheme. Mon Wea Rev, 120, 26222632