Delineation of large fire damage areas in boreal forests using NOAA AVHRR measurements

Computer Science

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Scientific paper

The NOAA Advanced Very High Resolution Radiometer (AVHRR) observations were utilized to delineate areas of large (greater than 1000 hectars) forest fires. The forest fire maps, prepared by Russian specialists, were compared with the standardized monthly anomalies of a vegetation index calculated from the visible and near-IR reflected radiances measured by AVHRR on board NOAA polar orbiting satellites. This multispectral data base has been developed for the period April 1994 - present. The data are sampled in time and space and mapped to 0.15 degx0.15 deg latitude/longitude grid on a weekly basis. Processing includes proper calibration, screening of cloud contamination, interpolation and smoothing. A quantitative analysis is yet to be done. Once the method for delineation of damage areas is developed and validated, it can be used operationally over vast Russian territory where ground or aircraft observations are not available.

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