Analysis of heavy precipitation for France using high resolution ALADIN RCM simulations

Michel Déqué (1) , Samuel Somot (1)

1 CNRM - Centre national de recherches météorologiques

A high resolution version of ALADIN over France is analyzed here in 30- year ERA-40-driven simulations. It is demonstrated that a resolution of 12 km improves some features of the mean precipitation field with respect to the same version at 50 km resolution. This version improves also the representation of precipitation upper quantiles in summer by producing less high precipitation rates.

Keywords: Extreme events; Regional climate modeling; Horizontal resolution; France; Evénements extrêmes; Précipitation; Modélisation de climat régional; Résolution horizontale

Domains: Meteorology; Atmospheric and Oceanic Physics [physics.ao-ph]

Michel Déqué, Samuel Somot. Analysis of heavy precipitation for France using high resolution ALADIN RCM simulations. Idöjaras Quaterly Journal of the Hungarian Meteorological Service, 2008, 112 (3-4), pp.PP. 179-190. ⟨meteo-00370705⟩