Figure 4 Pan-sharpened
QuickBird satellite coverage of Bam, acquired: (a) in September 2003 ‘before’
the earthquake; and (b) in January 2004 ‘after’ the earthquake. In addition
to differences between the scenes due to urban damage, the greenness of
vegetation has changed because of seasonal effects and sensor look angle
variation. Imagery courtesy of DigitalGlobe, http://www.digitalglobe.com.