Advances in Geosciences www.adv-geosci.net 1680-7340 1680-7359 2 6th Plinius Conference on Mediterranean Storms (2004) 2005 10.5194/adgeo-2-177-2005 http://www.adv-geosci.net/2/177/2005/ http://www.adv-geosci.net/2/177/2005/adgeo-2-177-2005.html http://www.adv-geosci.net/2/177/2005/adgeo-2-177-2005.pdf 177 180 2005-05-30 The meteorological model RAMS at Crati Scrl S. Federico E. Avolio C. Bellecci M. Colacino CRATI Scrl, c/o Università della Calabria, Rende (CS), Italy CNR-ISAC, via del Fosso del Cavaliere 100, Rome, Italy Facoltà di Ingegneria-Università di “Tor Vergata", via del Politecnico 1, Rome , Italy At Crati Scrl an operational version of RAMS 4.3 (Regional Atmospheric Modeling System) was implemented in January 2001. This paper aims to give a first assessment of model performances for quantitative precipitation forecast (QPF). In essence, the effects of enhanced horizontal grid resolution over Calabria, using a 6km spacing domain nested in a 30km resolution parent grid, is studied. <P style="line-height: 20px;"> To cope with this problem two integrations sets are discussed using two model resolutions. Integrations are performed daily for six months. ECMWF 12:00UTC forecast cycle is used for initial and dynamic boundary conditions. <P style="line-height: 20px;"> Performances are evaluated by scores computed from model outputs and raingauge measurements coming from Calabrian regional network.