Abstract
Surface fluxes of carbon gases in Yekaterinburg during 2018-2019 are estimated, their values are 82.77 ± 28.31, 6120 ± 2132, 17.97 ± 6.6 t/(km2 year) for СО, СО2, and СН4, respectively. Continuous measurements of concentrations in the atmospheric surface layer were conducted at the Institute of Industrial Ecology (Ural Branch, Russian Academy of Sciences) in Yekaterinburg using the Picarro G2401 gas analyzer. The regions with increasing nocturnal concentrations of carbon gases in calm conditions were detected during the surface fluxes estimation: wind speed was 0-1 m/s. Further calculation of surface fluxes for the selected time intervals was based on the measured concentrations and some meteorological parameters (the height of the atmospheric boundary layer, temperature, etc.). The results of the present study are comparable with the results of the studies that used a similar method. A surface fluxes growth is observed as the population size increases, while a dependence on the population density is not revealed. The largest contribution to the total uncertainty is made by the height of the atmospheric boundary layer.
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