Vol. 14, issue 12, article # 5

pdf Grechko G. M., Gurvich A. S., Kan V., Savchenko S. A., Pakhomov A. I. Scintillations of star images observed through the atmosphere from onboard Salyut-7 and Mir space stations. // Atmospheric and oceanic optics. 2001. V. 14. No. 12. P. 1026-1037.
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The results of observations of the star settings from onboard Salyut and Mir space stations in 1982-1993 with an EFO-1 photometer are summarized. The main purpose of these experiments was to study the small-scale structure of the inhomogeneities in density and temperature in the stratosphere from the measurements of stellar scintillations. A description of the measurement periods is presented, and a brief discussion of the measured results on the scintillation spectra is presented. The measurements with an EFO-1 have made it possible detection and study of the anisotropic inhomogeneities of the density of a stratified type. The estimates of the coefficient of the anisotropy inhomogeneity are obtained. The vertical spectra of density and temperature fluctuations in the stratosphere are retrieved. These spectra well agree with the results of in situ balloon-borne temperature measurements and modeling of saturated internal waves on the vertical scales from 0.1 to 1 km. The measurements have demonstrated the presence of characteristic vertical scale of the order of few meters in the vertical spectra of anisotropic temperature inhomogeneities in the stratosphere.