Study of Optimal Scheme in Cannon Precipitation Enhancement

One of the important problems in precipitation enhancement by the use of cannon is to figure out operating parameters and affected area. Diffusion of a catalyzer injected with multiple cannon-shots is studied in this paper. Effective seeding areas using different eddy diffusivity coefficients, azimuth, elevation and wind speeds are simulated. Based on these calculations an operation method is put forward, i.e. cannonballs are shot against the wind in a semicircle with multiple rounds. The method has been programmed in the Cannon Precipitation EnhancementOperation Command System which can automatically determine effective seeding areas to facilitate assessment of precipitation enhancement