Intercomparison of Instruments for Measurements of the Atmospheric Turbulence Characteristics

N. F. Mazurin and L. K. Kulizhnikova

In this paper, intercomparison testings of the Wind Master sonic anemometer manufactured by Gill Instruments Ltd. (U.K.) and two sonic anemometers manufactured by the Taifun Scientific Industrial Association (Obninsk, Russia), ATsAT-3M are described. Data of measurements of the standard deviations and spectrum characteristics of the vertical and horizontal wind speed components, heat and friction fluxes are presented. Dispersion of the measurements and degree of their coherence are characterized by the regression equation coefficients (a and b) and the cross-correlation coefficients. The coherence plot shows compliance of the measurements data throughout the entire frequency range.