The aerosol optical thickness (AOT) and pyrogenic event variations in central Yakutia in 2000-2009 were researched using remote data (NOAA, Terra and Aqua). It is shown that the average summer (June-August) AOT for years with high pyrogenic activity (2001-2003) is by 125% greater than AOT of years with low pyrogenic activity (2000, 2004-2009). In some days, when forest fires were most strong, the daily AOT in central Yakutia exceeded the undisturbed values up to 1,5-1,6.
forest fires, aerosols, remote sensing