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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, 2024, Vol. 21, No. 6, pp. 143-155

Accuracy of calculating carbon monoxide emissions from large forest fires using the balance technique based on satellite monitoring data

D.M. Ermakov 1, 2 , E.V. Pashinov 1 , D.V. Lozin 1 , E.A. Loupian 1 , S.A. Vturin 1 
1 Space Research Institute RAS, Moscow, Russia
2 Kotelnikov Institute of Radioengineering and Electronics RAS, Fryazino Branch, Fryazino, Moscow Region, Russia
Accepted: 02.12.2024
DOI: 10.21046/2070-7401-2024-21-6-143-155
The accuracy of the previously proposed balance technique (BT) in calculating carbon monoxide emissions from large forest fires was studied. It was shown that with the calculation parameters used in practice (the sizes of the boundaries of the studied territories), the relative error is expected to be at the level of 30 %. The results of calculating emissions from 21 large forest fires were compared with independent model estimates based on the GFED (Global Fire Emissions Database) database. The comparison showed good agreement between the two types of calculations. The developed approach to analyzing BT accuracy has prospects for generalization to the case of arbitrary sources/sinks of minor gas components of the atmosphere. It should be expected that this accuracy will depend on the choice of the gas component, so it is of interest to conduct additional studies of the accuracy for different gas components, including water vapor. Both theoretical analysis and practical calculations show that the relative error in calculating balances in the BT decreases with the growth of the size of the territories under study. Therefore, the most reliable, on average, balance estimates should be expected for large territories (at the level of subjects of the Russian Federation or entire countries), as well as when accumulated over long time intervals.
Keywords: carbon monoxide emissions, large forest fires, balance technique, satellite monitoring, accuracy assessment
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