TY JOUR TI SIMPLIFIED METHOD FOR ESTIMATING FOREST FIRE SITUATION KW natural risks KW assessment of fire danger KW fire statistics JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Zaborsky, B.V. AU Potapov, S.I. PY 2015 IS 2015 PB Saint-Petersburg University of State Fire Service of Emercom of Russia