During eleven nights, two different instruments, a scintillation detection and ranging (SCIDAR) and a radar, were simultaneously operated to retrieve profiles of the atmospheric turbulence C 2 N ( h ). The SCIDAR spectral window lies between 5 cm and 25 cm, whereas the radar is sensitive to 3.3‐m wavelength. The profiles deduced from the SCIDAR and from the oblique (13°) radar agree fairly well, at least above 9 km, where the effects of specific humidity on radar returns are negligible. On eight occasions the agreement is good enough, over a large range of altitudes, to confirm the validity of Tatarski's theory of beam propagation, Kolmogorov's spectral laws, and Ottersten's description of radar returns.
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Vernin et al. (1990) studied this question.
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