Impacts of Flood Simulation in 3D and SWAT Environment of Terengganu River Catchment | Chapter 04 | Advances in Applied Science and Technology Vol. 1
Flood is a natural hazard influenced by climatic and anthropogenic factors. The Terengganu River catchment is located near the South
China Sea has been flooding during heavy monsoon season with
strongrain-bearing winds to
the interior coastal
zones of Kuala
Terengganu. The ArcSWAT2012extension of
ArcGIS10.3 and ArcScene10.3
has been used
to design 3D
models simulations to predict flood risk event through the
stream flow and elevation data derived from ASTER DEM. The Hydrologic Response
Units (HRUs) provided the sub-basins parameters which are overlaid with the
real-time simulations to determine which sub-basins are affected by flood risk.
The flood animation is developed for mitigation and quick decision making for
safety and evacuation of flood victims in the Terengganu River catchment. The
3D simulations produce flood risk zones models which illustrate the affected
zones by the flood. The 25 sub-basins parameters have distinct characters which
influence the stream flow,
soils, slopes and
land cover. That
represent areas affected
by flood in
Kuala Terengganu. The 25 sub-basins parameters have unique
characteristics that influence the river flow, land cover,
soil and slopes.
One of the
effective ways offlood
monitoring is to
see it physically occurring or
happening in real-time.
The solution is
to set the
model at the
simulation in the 3D
environment. The Terengganu River catchment was successfully delineated and
simulated using the sub-basins to identify zones that are affected by the flood
risk. The impacts of flood risk usually take place during the monsoon period,
especially in Peninsular Malaysia. The Terengganu catchment is liable to
flooding during the period of monsoon.
The average rainfall during flash flood
reaches to 3000mm of rain, with more than 24 hours of a continuous heavy rain
shower. The flood event mostly affects peninsular Malaysia from Decembers to
January.
Biography of author(s)
Ibrahim Sufiyan
Department of Surveying and Geoinformatics, Federal Polytechnic Nasarawa, Nasarawa State, Nigeria.
Department of Surveying and Geoinformatics, Federal Polytechnic Nasarawa, Nasarawa State, Nigeria.
View Volume: https://doi.org/10.9734/bpi/aast/v1
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