Summary table: Approximations

Boussinesqanelastichydrostaticflat earthremarks
ADREA
ALADIN/A
ALADIN/PL
ARPSARPS is non-hydrostatic and compressible
BOLCHEM
CALMET/CALPUFFCALMET is a diagnostic 3-dimensional meteorological model; it iterpolate meteorological data (surface and radiosoundins)also using kinematic effects, slope flow, blocking effects. It includes divergency minimization procedure and micrometeorological model for overland and overwater boundary layers. In Krakow we replace radiosoundings by data from ALADIN/PL.
CALMET/CAMxCALMET is a diagnostic model; it interpolates the meteorological data (surface and radiosoundings) also using kinematic effects, slope flows and blocking effects. Vertical velocity is derived from a divergence minimization scheme.
CLM
COSMO-2non-hydrostatic, compressible
COSMO-7non-hydrostatic, compressible
COSMO-CLM
COSMO-MUSCATNon-hydrostatic, compressible, surface heterogeneity (orography, land use)
ENVIRO-HIRLAM
GEM-AQ
GESIMA
GME
Hirlam
LAMInon-hydrostatic compressible
LMEnon-hydrostatic compressible
LME_MH
M-SYS
MC2-AQFully compressible, non hydrostatic Euler equations [Tanguay et al. 1990; Benoit et al. 1997}
MCCM
MEMO (UoT-GR)
MEMO (UoA-PT)MEMO is a non-hydrostatic model.
MERCUREtakes into account topography but not earth curvature
METRAS
METRAS-PCL
MM5 (UoA-GR)MM5 3.6.1 is a non-hydrostatic model
MM5 (UoA-PT)
MM5 (UoH-UK)
MM5(GKSS-D)
Meso-NHThe model is based upon the Lipps and Hemler anelastic system.
NHHIRLAMAll approximations are possible as options. However HIRLAM is pressure coordinate based model and the approximations do not match exactly.
RAMS
RCG
SAIMM
TAPM
UMNo significant approximations to continuous equations. This includes NOT using the shallow atmosphere/traditional approximation common in th emajority of models.
WRF-ARW- compressible, non-hydrostatic Euler equations - terrain-following mass vertical coordinate
WRF/Chemfully compressible equations
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