International turbulence comparison experiment (ITCE-81)
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The main results of the International Turbulence Comparison Experiment (Tsimlyansk, U.S.S.R., June–July 1981) are presented. Groups from G.D.R., Poland, U.S.S.R., and Czechoslovakia took part in the experiment, while Bulgarian researchers were present as observers. A comparison of in situ measurements (by acoustic anemometers, thermoanemometers, and resistance thermometers) among themselves and with remote soundings (by sodars) was made. Simultaneous measurements of turbulent fluctuation characteristics and of wind velocity and temperature profiles were performed by different instruments. The results and temperature profiles were performed by different instruments. The results of these measurements were used to estimate the comparative accuracy of various models proposed for the evaluation of turbulent fluxes from profile data.
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