This paper reports the study of a five-year current climate simulation, starting from the conditions as of 1st January, 1979, carried out at the R and D Division using the Dynamic Meteorology Laboratory`s general circulation model of the atmosphere. This simulation was carried out using the low-resolution version of the model (48 points of longitude, 36 of latitude). The results were systematically compared with existing climatologies (NASA, Godbole and Shukla, Mintz-Serafini, Oort) as regards the following parameters: - Pressure at sea level, - Temperature, - Hydrological cycle (precipitation, evaporation, soil moisture), - Wind. - Geopotential level. (author). 11 refs., 72 figs.