ISAC numerical modeling chain, based on BOLAM and MOLOCH mesoscale models, is applied to study heavy precipitation events over Liguria region. In particular, the convection-permitting model MOLOCH is applied at different spatial resolutions in order to investigate the main dynamical processes responsible for the onset, lifecycle, intensity and localization/propagation of the mesoscale convective systems and to assess the ability of the model in quantitative precipitation forecasting (QPF) with respect to initial conditions and model horizontal resolution. Moreover, a procedure for assimilating radar rainfall estimate in MOLOCH, based on nudging, is implemented and evaluated over a relevant number of severe weather episodes.
High-resolution modeling studies of heavy precipitation events
Davolio Silvio;Malguzzi Piero;Drofa Oxana;Mastrangelo Daniele;Buzzi Andrea
2017
Abstract
ISAC numerical modeling chain, based on BOLAM and MOLOCH mesoscale models, is applied to study heavy precipitation events over Liguria region. In particular, the convection-permitting model MOLOCH is applied at different spatial resolutions in order to investigate the main dynamical processes responsible for the onset, lifecycle, intensity and localization/propagation of the mesoscale convective systems and to assess the ability of the model in quantitative precipitation forecasting (QPF) with respect to initial conditions and model horizontal resolution. Moreover, a procedure for assimilating radar rainfall estimate in MOLOCH, based on nudging, is implemented and evaluated over a relevant number of severe weather episodes.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.