RAPTAD(R) is a 3D computer code used to predict transport and diffusion of airborne materials over complex terrain. Meteorological inputs required to run RAPTAD are provided by a 3D atmospheric forecast code, HOTMAC. Important features of RAPTAD include incorporation of complex wind and turbulence variations modeled by HOTMAC and Monte Carlo statistical methods for puff transport. HOTMAC and RAPTAD are used in a number of practical applications such as air pollution transport in coastal and mountainous areas, emergency preparedness planning for the accidental or routine release of toxic gas, and battlefield stategy involving atmospheric diffusion.
Ted Yamada
President Yamada Science & Art Corporation 147 Monte Rey Drive South Los Alamos, NM 87544 USA 505-672-3373 fax:505-672-1910