Flood disasters account for about a third of all natural catastrophes throughout the world (by
number and economic losses) and are responsible for more than half of the fatalities. (Gerhard
2006) Remote sensing and satellite data are effective tools for hazard related applications like
flooding that need a synoptic view when the field is on emergency status and it is hard to
make ground surveying. Radar systems are more advantageous in data providing and
observation of floodplains than optic systems, since flood occurs mostly on cloudy days.