Measurements and Analysis Using GIS 229
to flooding due to storm water is a major concern for urban management
bodies and government organizations engaged in disaster management. Also
because of global warming the mean sea level is increasing, posing a threat to
a vast population settled near the sea. Therefore flooding due to sea water is
a real threat to human settlements near the sea. This unconventional flood-
ing model need to be simulated and well understood to take precautionary
measures before an actual disaster occurs.
To determine the potential depth of flooding, one must be able to predict
how much water is in the watershed at any given time, how that amount of
water changes over time during a storm event, and how the flow of water
is impeded