A joint experiment using Doppler radar technique and instrumented aircraft has produced comparative measurements of wind‐speed fluctuations under convective conditions in the lowest 500 meters. Preliminary results show a good agreement between radar and aircraft spectra of a longitudinal wind‐speed component at scales from 50 meters to 1 km. There is an indication that, at scales larger than 1 km, Taylor's hypothesis is not valid.
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Melnichuk et al. (1969) studied this question.
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