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Originally posted by Damocles
somewhere in a closet i believe i still have, or at least can get, one of the books i used to use to plot downwind hazards for fallout. if i have one, all i will need would be measurements of the cloud (height/width as observed from somewhere we can verify) and a weather report from that day.
Digital Surface Models created by the LIDAR system provide very accurate 3-dimensional positioning of the building structures and the surrounding area. The 3-D models, in this case, have helped to locate original support structures, stairwells, elevator shafts, basements, etc. When this data is merged with the high resolution aerial photography taken by NOAA's Citation aircraft, it will create a very accurate image with relative accuracy around three decimeters.
This was a partnership between NOAA, Army Joint Precision Strike Demonstration, Optech Inc. of Toronto, Canada, and the University of Florida. Optech and the University of Florida processed the data which produced the image.