Within the framework of the Mediterranean models evaluation experiment, a Princeton Ocean Model (POM) of the Mediterranean has been developed in University of Athens. It has a horizontal resolution of 0.25 degrees in longitude and latitude and 32 levels in vertical. Here we report the results for year 15 of two perpetual experiments with monthly and daily meteorological forcing accordingly. For the first integration with monthly mean forcing, the model was ran with restoring boundary conditions for both temperature and salinity and monthly climatological momentum fluxes derived from ECMWF daily means averaged for the period 1986-1992. For the second integration the model was forced using ECMWF daily mean heat, evaporation and momentum flux fields for 1988 (which is considered a typical year). In addition, precipitation data were taken from Jaeger's monthly climatology and E-P flux was additionally corrected using a smooth relaxation to monthly SSS climatology. The mam features of the Mediterranean Sea general circulation are reproduced satisfactory in both experiments (i.e. Algerian current and its anticyclones, Gulf of Lions Gyre, Tyrrhenian cyclonic circulation, positioning of the MMJ, Rhodes gyre). Seasonal changes are evident within the Tyrrhenian and the Ionian basm as expected. The annual surface heat flux averages to 6 Wm'2 for the monthly forcing run and to 2 Wm'2 for the daily forcing run. The positive budget results in a continuous increase of the mean temperature field which is more evident in the first integration. The E-P budget for both experiments is -0.4 myr'1, however the salinity field reaches equilibrium much faster in the daily forcing run. Although the model is skillful in reproducing the seasonal variability of the general circulation, it is not able to form the deep waters of the basm mainly due to the weakness of the surface heat and salinity fluxes. While the amplitude of the heat flux field is improved with the daily forcing run, again the model is unable to produce the deep waters of the WMED (Gulf of Lions) and only a shallow convection occurs during March. On the other hand the LIW formation process and its spreading is more realistic particularly in the second experiment. Finally, the transports through the major straits remain similar for both runs (Gibraltar 1.2 / 1.1 Sv , Sicily 2/2.4 Sv, Otranto 0.4 / 0.4 Sv).