The Uses of Cloud Models in Weather Modification

This paper updates a report to the World Meteorological Organization (WMO) in 1981 made by a "panel of experts" in cloud modeling, chaired by the author. The primary uses of cloud models are reviewed and two tables constructed, one which details the types and uses of cloud models in weather modification and references to the models, and a second table describing the computational tasks involved in running the models. Some outstanding problems are mentioned and reasons given for hope regarding the numerical simulations of cloud seeding effects.