Stratospheric turbulence and temperature gradients measured by an RB-57F; Coldscan flights 19 to 56

Since January 1969, a USAF RB-57F high altitude weather reconnaissance aircraft has carried a special NRC instrumentation system to measure and record stratospheric turbulence and horizontal temperature gradients encountered at altitudes from 40,000 to above 60,000 feet. The chief purpose of this co-operative program, named "Coldscan", is to...