MODIS images were acquired from the NASA’s website:
and a standard supervised maximum
likelihood classification of the images covering Sindh province
was carried out and the required inundated class was converted
into a shape file. Further editing of the images was carried
out by visual interpretation (stagnant water has dark blue
reflectance and flowing water has light blue color) of the inundated
areas using expert knowledge. The topographic maps
were then intersected with accumulated shape file of the inundated
area to extract different types of info-layers for damage
assessment. Flow chart of the methodology adopted in this
study is shown in Fig. 2.