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ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2022, Vol. 19, No. 2, pp. 232-242

Variations of aerosol optical depth, black carbon, carbon monoxide and methane from satellite observations of the atmosphere during the forest fire season in the Yakutsk Region in 2013–2021

N.V. Rodionova 1 
1 Kotelnikov Institute of Radioengineering and Electronics RAS, Fryazino Branch, Fryazino, Moscow Region, Russia
Accepted: 14.03.2022
DOI: 10.21046/2070-7401-2022-19-2-232-242
The paper presents the results of a study of variations in aerosol optical depth (AOD), black carbon (BC), carbon monoxide (CO) and methane (CH4) concentrations in the atmosphere during forest fires in the Yakutsk Region (central part of Yakutia) in 2013–2021 summer seasons. The work was based on satellite observations of the Giovanni data analysis and visualization system. AOD measurements based on OMI/AURA instrument data were compared with ground measurements by a solar photometer at the AERONET global network station in Yakutsk. The correlation between ground and satellite data was determined. Seasonal and interannual variations of AOD for Yakutsk in 2013–2021 show an increase in AOD values since 2019. To estimate BC concentration, monthly mean MERRA-2 reanalysis data were used. Seasonal and interannual variations of BC for Yakutsk with a stable increase in BC concentration since 2013 were determined. CO and CH4 concentrations were estimated using AIRS/Aqua data. The seasonal course of CO concentration is distinguished by a decrease in values in the summer period, within which there are local highs for years with high pyrogenic activity. The interannual course of CO concentration shows increases in pyrogenic years. The interannual course of CH4 concentration is characterized by a stable increase in values.
Keywords: forest fires, remote sensing, aerosol optical depth, black carbon, carbon monoxide, methane
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