Fig. 3From: Frequency spectra of horizontal winds in the mesosphere and lower thermosphere region from multistatic specular meteor radar observations during the SIMONe 2018 campaignAutocorrelation function, and frequency spectra of the meridional wind component derived using the WCFI method. The autocorrelation function was estimated by averaging over a range of 87 to 93 km in altitude with 1800 s (30 min) temporal lag, 50 km horizontal lag and 1 km vertical lag resolutionsBack to article page