S. Trigg et S. Flasse, An evaluation of different bi-spectral spaces for discriminating burned shrub-savannah, INT J REMOT, 22(13), 2001, pp. 2641-2647
We report on the numerical separation of burned and unburned vegetation cla
sses using different bi-spectral spaces, based on the analysis of spectrora
diometric data collected in situ and convolved to five spectral bands at re
d to mid-infrared (MIR) wavelengths, A combination of two MIR bands was fou
nd to have strong spectral separation of burned and unburned samples. Using
these bands, a spectral index was formulated which is highly sensitive to
spectral changes due to burning and relatively insensitive to intrinsic var
iability. Results have implications for the remote sensing of burned shrub-
savannah using bands available on high- and low-spatial resolution sensors,
in particular, Landsat TM and MODIS.