Stratospheric Turbulence and Temperature Gradients Measured by an RB-57F. Coldscan Flights 57 to 92
NATIONAL AERONAUTICAL ESTABLISHMENT OTTAWA (ONTARIO) OTTAWA Canada
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Through most of the period from January 1969 to June 1971, a USAF RB-57F high altitude weather reconnaissance aircraft has carried special NRC instrumentation to measure and record stratospheric turbulence and horizontal temperature gradients encountered on routine flights at altitudes from 40,000 to 65,000 feet. The main purpose of this cooperative program, named Coldscan, was to collect data on atmospheric conditions at altitudes to be flown by the supersonic transports. Data are presented on the correlation between measured stratospheric turbulence and horizontal temperature gradients, on the altitude and geographical distributions of the turbulence and temperature change encounters, and on the positions of the recorded incidents relative to the jet stream.