Estimating the Influence of Environmental Factors on the Fire Radiative Power Using Satellite Imagery
E. G. SHVETSOV, E. I. PONOMAREV
V. N. Sukachev Institute of Forest SB RAS, 660036, Krasnoyarsk, Akademgorodok, 50/28
Keywords: satellite data, fire, fire radiative power, heat emission, fire danger, correlation
Abstract
In this work the influence of environmental factors (prevailing tree stands, intensity of the fire season, weather conditions) on the fire radiative power (FRP) was analyzed. The data from the Moderate Resolution Imaging Spectroradiometer (MODIS) were used to characterize the variations of fire radiative power. Our studies showed that during the periods of high fire activity the
FRP was 10 % higher than during the periods of low fire activity. The correlation level between the
FRP and weather fire danger was determined. In particular, the fire weather index (FWI) of Canadian weather fire danger assessment system showed a closer relationship with the
FRP in comparison with the Russian PV–1 index. It was also found that the fires in Siberian forests with the predominance of larch trees generally had 20–25 % higher
FRP values than the fires in deciduous and pine forests.
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