Registration of Wildfire Energy Characteristics in Siberian Forests Using Remote Sensing
Considering the conditions of forests burning in Siberia, we have adopted the method for remote registration of fire radiative power in spectral range 3.929-3.989 |am (Terra/MODIS data). Variation range of radiative power was evaluated. Sporadic peaks of fire radiative power in the pixel were related to extreme intensity burning including crown burning in case of exceeding the mean value within fire polygon over 2.5c. The probability of crown fire remote detection was not less than 65%. The quantitative relationship of fire radiative power versus the sub-pixel burning area was provided. It was shown that up to 5.5 ± 1.2% of total wildfires numbers in Siberia are high intensity burning. The total area of high-intensity fires including crown fires was not less than 8.5% of annual burned area, rising up to 15-25% during extreme fire seasons.