Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2013, Vol. 10, No. 4, pp. 79-88
Advanced microwave radiometric model of forest fire flames
I.N. Kibardina
, V.P. Savorskiy
, O.O. Kuznetsov
, S.M. Maklakov
, O.Yu. Panova
, A.A. Chukhlantsev
Kotelnikov’s Institute of Radioengineering and Electronics RAS, Fryazino Department, Fryazino, Moscow region, Russia
A model of forest fire flames which is aimed to analyze the possibility of fire detection using air or space bourn microwave radiometers is developed. The model allows estimating the values of forest fire flame brightness temperatures, taking into account changes in their thermodynamic temperatures. In the frame of the developed model it was found that the main parameters of flames that determine the values of the observed brightness temperatures, are electron density and electron collision frequency. They fully define the parameters of microwave emission of forest flames representing the low-temperature weakly ionized plasma. When simulating the conditions of surface-through-forest-canopy fire observations the optimal microwave bands for early detection of forest fires were determined.
Keywords: СВЧ-радиометрия, лесные пожары, модель излучения, радиотепловое излучение, microwave radiometry, forest fires, emission model, radiothermal emission
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