Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2026. Т. 23. № 3. С. 109-120
Comparative analysis of fire radiative energy and carbon emissions in Siberia using satellite observations
1 Krasnoyarsk Science Center SB RAS, Krasnoyarsk, Russia
Accepted: 26.03.2026
DOI: 10.21046/2070-7401-2026-23-3-109-120
The paper presents the results of an assessment of fire radiative energy (FRE) and associated pyrogenic carbon emissions in Siberia between 2003 and 2025. The study uses data from MODIS (Moderate Resolution Imaging Spectroradiometer) and VIIRS (Visible Infrared Imaging Radiometer Suite) satellite systems having spatial resolution of 375–1000 m, including thermal anomalies and burned areas products. Fire radiative energy was assessed using two methods: trapezoidal integration and modeling the diurnal cycle of fire radiative power using a Gaussian function. It was found that estimates of FRE that consider diurnal variations in radiative power are 2–3 times higher than those obtained using trapezoidal integration. The resulting carbon emission estimates were compared with global emission products GFED (Global Fire Emissions Database), FEER (Fire Energetics and Emissions Research), FINN (Fire INventory from National Center for Atmospheric Research), and QFED (Quick Fire Emissions Dataset). A high correlation of temporal dynamics was found (R2 > 0.72), however, the absolute emission values calculated using FRE were lower than global estimates, which is likely due to satellite sensors neglect of low-temperature fires and influence of cloud cover. Results closest to global products were obtained using VIIRS data with a resolution of 375 m.
Keywords: Siberia, wildfires, Fire Radiative Energy, FRE, Fire Radiative Power, FRP, remote sensing, MODIS, VIIRS, pyrogenic carbon emissions
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