1 Spatial Modelling of the Terrestrial Environment - Georeferencial

Figure 9.4 The upper row shows EOS MODIS and BIRD HSRS daytime brightness temperature
subscenes, extracted from MIR imagery of the Australian wildfires occurring close to
Sydney on 5 January 2002. The HSRS image was collected at 00:10 GMT, whilst the MODIS
image was collected 12 min. later. The lower row shows the pixels that were detected as
fires by the MODIS and BIRD automated fire pixel detection algorithms (Kaufman and Justice,
1998; Zhukov and Oertel, 2001). Ten discrete fire fronts, each composed of clusters of fire
pixels are identified in both subscenes by the automated algorithms. With the 1 km spatial
resolution MODIS data these ‘clusters’ consist of between 1 and 5 contiguous pixels, whereas
with the higher spatial resolution HSRS imagery (370 m pixel size, 185 m sampling step), they
consist of between 4 and 126 pixels