Abstract : 2E.18
High resolution operational forecasting with MOLOCH for MAP-DPHASE

Silvio Davolio, Andrea Buzzi, Piero Malguzzi

The non-hydrostatic, high resolution, convection resolving model MOLOCH, developed at ISAC-CNR, has been implemented in a real-time configuration in order to provide weather forecasts operationally during the six months period of MAP-DPHASE experiment.

The model chain is based on the ECMWF forecasts at 0.25 x 0.25 degree resolution or, alternatively, on the GFS model forecasts at 0.5 x 0.5 degree resolution. The limited area chain comprises also the hydrostatic model BOLAM which is driven directly by the global model. In cascade, high resolution MOLOCH forecasts are made using a 1-way nesting.

The integration domain at high resolution (about 2.2 km grid spacing) includes the entire Alpine area and also the COPS (Convective and Orographically-induced Precipitation Study) project area. The forecasting system is run daily on a Linux-based parallel system, composed by 8 dual-processor nodes.