AN EVALUATION OF THE OPERATIONAL UTILITY OF DIRECT READOUT INFRARED SATELLITE DATA.
AIR WEATHER SERVICE SCOTT AFB ILL
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The study attempts to answer the question of the utility of direct-readout infrared data on the basis of data obtained from the Nimbus I and II spacecraft. Both spacecraft provided infrared data to a central readout station of the National Aeronautics and Space Administration. The high-resolution infrared data HRIR was recorded on 70mm film and is of photographic quality. The data sample is limited to September of 1964 and May thru November of 1966, the operating lifetimes of these infrared systems. A large number of HRIR pictures were available for this evaluation, as well as several DRIR data samples. The DRIR pictures were obtained from the Joint Typhoon Warning Center JTWC at Guam where a Navy APT set had been modified to receive DRIR data. Additional input into this study came from an evaluation of DRIR by the US Navy, from a large number of technical publications on this subject, and from personal contact with those who had worked with DRIR data. Author