Height profiles of the structure characteristic of air temperature in the atmospheric boundary layer from sodar measurements

Abstract

Results of the analysis of height profiles of the normalized structure characteristic of air temperature C_T² in the atmospheric boundary layer under conditions of daytime convection are discussed. The experimental data were obtained using the Volna-4M acoustic Doppler radar (sodar) in Akademgorodok district (Tomsk, Russia). The profiles were automatically normalized to the value of C_T² at the height H = 100 m. The analysis involved results obtained in daytime (11:00–16:00 LT) in a warm period (from July to August) of 2015. The shape of height profiles of C_T² obtained by the sodar are compared with similar profiles obtained by other authors. The presence of a break in the profiles of C_T² at heights of 60–80 m is noted.