Estimation of spatial heterogeneity of the thermal stratification in the boundary layer of the Moscow megalopolis from remote sensing
V.P. Yushkov
Lomonosov Moscow State University, GSP-1, Leninskie Gory, 1/2, Moscow, 119991, Russia
Keywords: температура, пограничный слой, дистанционное зондирование, мегаполис, изменчивость, temperature, boundary layer, remote sensing, megalopolis, variability
Abstract
The results of a joint study of spatial heterogeneity and accuracy of retrieving temperature profiles in the atmospheric boundary layer over Moscow are analyzed. Measurements at three sites allowed estimating the spatial variability of thermal stratification in the megalopolis. The impact of local features of the observation sites on the retrieval error at all altitudes is shown. To reduce this impact, the retrieving of temperature lapse rate is suggested. Comparison of temperature gradients showed a decrease in the effect of local features in the range from 100 to 300 meters. The reference mesh based on the statistical variability analysis of the vertical temperature gradients is proposed.
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