Modelling activities in ARPEGE and ALADIN-France

The ARPEGE and ALADIN-France model share the same physics, and much the same numerics. They are original, cost-effective NWP models, oriented towards large-scale weather modelling, with some developments towards meso-beta scales (dx=5-10km) with the ALADIN community. They share many elements with the ARPEGE climate model, see the CNRM/GMGEC web page. The specific physics parts of AROME are described in the AROME section.

More information is listed under the CNRM/GMAP page, in the description of the NWP system.

Besides improving the NWP system, some longer-term scientific work is devoted to a better understanding of physical processes through participation in field experiments and international validation exercises, as reflected in the publications below.

References on the current ARPEGE/ALADIN physics, including ARPEGE 4DVar linearized physics

• A short presentation of the physics changes introduced in 2006 (soil freezing and Lopez cloud microphysics) can be seen Here (pdf 1.6Mb).
• Bouteloup, Y., F. Bouyssel and P. Marquet, 2005: Improvement of Lopez's pronostic large scale cloud and precipitation scheme. Aladin Newsletter no.28, Nov 2005, pp. 66-73.
• Gérard, L. and J.-F. Geleyn, 2005: Evolution of a subgrid deep convection parametrisation in a limited area model with increasing resolution. Quart. Jour. Roy. Meteor. Soc., 131, pp. 2293-2312.
• Geleyn, J.-F., 2003: Physical parameterisations in ARPEGE and ALADIN. Older informal documentation of the whole physics with references. (note some parts - radiation and stratiform precipitation in particular - are now outdated).
• Janiskova, M., F. Veersé, J.N. Thépaut, G. Desroziers and B. Pouponneau, 1999: Impact of a simplified physical package in 4D-Var analyse of FASTEX situations. Quart. Jour. Roy. Meteor. Soc., 125, pp.2465-2485.
• Janiskova, M., J.N. Thépaut and J.F. Geleyn, 1999: Simplified and regular physical parametrizations for incremental four-dimensional variational assilimation. Mon. Wea. Rev., 127, pp.26-44.

References on longer-term science and validation exercises

• Piriou, J.-M., J.-L. Redelsperger, J.-F. Geleyn, J.-P. Lafore and F. Guichard, 2007: An approach for convective parameterization with memory, in separating microphysics and transport in grid-scale equations. Accepted for publication in J. Atm. Sci.
• Derbyshire, S.H., I. Beau, P. Bechtold, J.-Y. Grandpeix, J.-M. Piriou, J.-L.Redelsperger and P.M.M. Soares 2004: Sensitivity of moist convection to environmental humidity, Quart. Jour. Roy. Meteor. Soc., 130, pp.3055-3079.
• Duynkerke, P.G., S.R. de Roode, M.C. van Zanten, J. Calvo, J. Cuxart, S. Cheinet, A. Chlond, H. Grenier, P. J. Jonker, M. Köhler, G. Lenderink, D. Lewellen, C.-L. Lappen, A. P. Lock, C.-H. Moeng, F. Müller, D. Olmeda, J.-M. Piriou, E. Sanchez and I. Sednev, 2003: Observations and numerical simulations of the diurnal cycle of the EUROCS stratocumulus case, Quart. Jour. Roy. Meteor. Soc., 130, pp.3269-3296.
• Piriou, J.-M. , R. Tailleux, and M. Tomasini, 2004: Modelling the diurnal cycle of deep precipitating convection over land with cloud-resolving models and single-column models. Quart. Jour. Roy. Meteor. Soc., 130, pp.3139.