Table 3: Area free of vegetation in the HyMap images from 2004, 2005, and 2008 given in absolute values and percentage of the total image coverage.

Time of acquisitionTotal number of image pixelsImage pixels with NDVI<0.2 and Proportion of image pixels with NDVI 0.2 and
(%)

09.08.200412.076.995266.0192.20
27.05.200512.495.8041.026.1878.21
29.07.200816.125.125208.3741.29