Abstract: The so-called ?sigma? coordinate system has seen increasing use in numerical models developed for general circulation and climate simulation, as well as for weather forecasting. Concurrently, there is an increasing demand ...

Abstract: An 11-level general circulation model with seasonal variation is used to perform an experiment on the dispersion of passive tracers. Specially constructed time-dependent winds from this model are used as input to a separate ...

Abstract: The GFDL 11-level general circulation/tracer model is used for two experiments designed to prepare the way for a self-consistent model of atmospheric ozone. The first experiment invokes a very simple condition at the top ...