Measurements of atmospheric parameters along an extended path. I. Acoustic measurements of turbulence and average wind speed
A.V. Torgaev, D.V. Kazakov, V.P. Lukin
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
Keywords: turbulence, wind speed, acoustic waves, propagation, horizontal paths
Abstract
The results of measurements of atmospheric parameters (level of turbulence and average wind speed) along an extended path are discussed. These measurements were carried out to determine the effective average values of atmospheric turbulence parameters along the path of optical radiation propagation. The measurements were carried out in August 2022 using an AMK-03 acoustic weather station. It is shown that the AMK-03 weather station, with a certified measurement technique, provides reliable information on the level of turbulence and on the wind speed. The measurement data of the turbulence level at different points along the atmospheric path are correctly recalculated into the values of the coherence length (the Fried parameter) for an optical wave of an arbitrary length and different divergence by the formulas of the wave propagation theory. This makes it possible to compare local acoustic and optical path measurements of the turbulence level.
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