Remote Sensing Data for Calibrated Assessment of Wildfire Emissions in Siberian Forests

Proceedings

Yakimov, Nikita²  Litvintsev, Kirill³  Ponomarev, Oleg⁴  Klimchenko, Alexander⁵  Ponomarev, Evgenii⁶  Bezkorovaynaya, Irina⁷  Ponomareva, Tatiana⁸  Panov, Alexey⁹  Shvetsov, Eugene^1,10 

[1] Available online: https://sciforum.net/conference/ecrs-2.;Author to whom correspondence should be addressed.;Department of Ecology and Environmental Study, Siberian Federal University, Krasnoyarsk 660041, Russia;Department of Thermophysics, Siberian Federal University, Krasnoyarsk 660041, Russia;Laboratory of Biogeochemical Cycles in Forest Ecosystems, V.N. Sukachev Institute of Forest Siberian Branch of Russian Academy of Sciences, Krasnoyarsk 660036, Russia;Laboratory of Forest Monitoring, V.N. Sukachev Institute of Forest SB RAS, Krasnoyarsk 660036, Russia;Laboratory of Physics of Energy Technologies, S.S. Kutateladze Institute of Thermophysics SB RAS, Novosibirsk 1630090, Russia;Laboratory of Technogenic Forest Ecosystems, V.N. Sukachev Institute of Forest SB RAS, Krasnoyarsk 660036, Russia;Presented at the 2nd International Electronic Conference on Remote Sensing, 22 March–5 April 2018;Regional Center for Remote Sensing, Federal Research Center “KSC SB RAS”, Krasnoyarsk 660036, Russia

关键词: wildfire;    Siberia;    area burnt;    remote sensing;    intensity;    fire radiative power;    emissions;   

DOI  :  10.3390/ecrs-2-05161

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

This study was carried out for Siberia using Terra/Modis satellite data (2002–2016), data of ground surveys on burned areas of different ages, long-term meteorological information, and numerical simulation results. On the basis of meteorological and wildfire databases, we evaluated the probability (~18%) of an extreme fire danger scenario that was found to occur every 8 ± 3 years in different parts of the region. Next, we used Fire Radiative Power (FRP) measurements to classify the varieties of burning conditions for each wildfire in the database. The classification of the annually burned forest area was obtained in accordance with the assessments of burning intensity ranges categorized by FRP. Depending on the fire danger scenario in Siberia, 47.04 ± 13.6% of the total wildfire areas were classified as low-intensity burning, 42.46 ± 10.50% as medium-intensity fire areas, and 10.50 ± 6.90% as high-intensity. Next, we calculated the amount of combusted biomass and the direct emissions for each wildfire, taking into account the variable intensity of burning within the fire polygons. The total annual emissions were also calculated for Siberia for the last 15 years, from 2002 to 2016. The average estimate of direct carbon emission was 83 ± 21 Tg/year, which is lower than the result (112 ± 25 Tg/year) we obtained using the standard procedure.

【 授权许可】

CC BY