Study of the Spatial Distributions of CO2 and CH4 in the Surface Air Layer over Western Siberia Using a Mobile Platform

We present the results of a large-scale study of carbon dioxide and methane distributions carried out on the territory of Western Siberia in 2018–2019 using a Picarro G4301 portable gas analyzer. The analysis of the data made it possible to retrieve the spatial distribution of background CO2 and CH4 concentrations with a high resolution. The inhomogeneities found in the CO2 and CH4 distributions were both due to the effect of ecosystems characteristic for different regions of Western Siberia and to specific features of their seasonal cycles.