Turbulence Measurements at Lower Levels around a Squall Line

摘要

The NAE T-33 was operated out of Tinker Air Force Base from April 22 to May 10, 1968 on a co-operative program of storm turbulence measurement. Control of the aircraft was exercised from the National Severe Storms Laboratories at Norman, Oklahoma. The object of the program was to explore turbulence intensities around thunderstorms and through radar 'gaps' in squall lines between 5,000 and 15,000 feet. On May 7, a squall line southeast of Oklahoma City was investigated, the T-33 being directed through essentially echo-free holes in the line. Moderate to severe turbulence was encountered in these gaps. Time histories and power spectra of the turbulence are presented and some conclusions are drawn as to the implication of the results to airline operations at these lower heights in severe storm situations. (Author)