Abstract: A diagnostic analysis and an appraisal of the precipitation calculation by the GFDL (Geophysical Fluid Dynamics Laboratory) 1967 version prediction model are presented, using two-week forecasts of 12 January and 12 July ...

Abstract: Two-week predictions were made for two winter cases by applying the Geophysical Fluid Dynamics Laboratory high-resolution, nine-level, hemispheric, moist general circulation model. Three versions of the model are discussed: ...

Abstract: A series of 2-week predictions were made with a general circulation model for 12 winter cases selected from the period 1964?69. All were January cases. The same prediction model?the most sophisticated and probably the most ...

Abstract: Two-week experimental forecasts were carried for 12 July Cases with a nine vertical level, 270 km grid-size hemispheric model, and the results were examined statistically. The solutions studied were the stationary (10-day ...

Abstract: With a 9-level general circulation model, all attempt was made to simulate numerically the breakdown of the circumpolar vortex in the winter stratosphere for the case of March 1965. The marching computations were started ...

Abstract: Truncation error of the numerical solution in a circulation model is still one of the most serious sources of error for the extended-period prediction. Different grid intervals are taken and the behavior of the solution ...