78
M. F. Chow
(a)
(b)
(c)
Fig. 5.6 Interface displays of a satellite rainfall data, b hydrograph and tank conditions, and c plan
view of river discharges
5.2.3 Interface Display of Simulation Results
The hydrological simulation results of the IFAS model can be displayed in terms of
hydrograph, plan view, table, and animation. It is also possible to display the setting
parameters, rainfall data, discharges and water level in each tank, and river crosssectional results as shown in Fig. 5.6. It is also possible to display simulation results
of two or more locations simultaneously and in different conditions.
5.3 Case Studies of IFAS Applications
IFAS model has been applied for flood analysis and forecast at several river basins
in different Asia countries as shown in Fig. 5.7. Researchers have applied IFAS
model for flood simulations at river basins in Pakistan (Aziz and Tanaka 2011),
Malaysia (Hafiz et al. 2013, 2014), Indonesia (Bormudoi et al. 2011), Vietnam (Chinh
et al. 2014), the Philippines (Miyamoto et al. 2014), Thailand (Chuenchooklin and
Pangnakorn 2015), and Afghanistan (Aziz and Satofuka 2015). The performances
of IFAS for flood simulation at different catchment characteristics are summarized
in Table 5.1. Hafiz et al. (2013) and Hafiz et al. (2014) applied the IFAS model to
simulate the floods in the Kelantan and Dungun river basin in Malaysia. Their results
showed that the error percentage for peak flow for the Kelantan River basin was
26%, while Nash–Sutcliffe Efficiency (NSE) for IFAS simulations at the Dungun
River basin was 0.72. Miyamoto et al. (2014) also obtained high accuracy of flood
predictions in the Cagayan River basin, the Philippines by using combined satellite
and ground rainfall using IFAS model. Flood simulation by IFAS model was applied
at the Chindwin River basin in Myanmar. The two-tank model in IFAS showed that it
is able to simulate the first major flood peak well and other major flood peak timing
well but underestimated the low flows. Meanwhile, the three-tank model reproduced
M. F. Chow
(a)
(b)
(c)
Fig. 5.6 Interface displays of a satellite rainfall data, b hydrograph and tank conditions, and c plan
view of river discharges
5.2.3 Interface Display of Simulation Results
The hydrological simulation results of the IFAS model can be displayed in terms of
hydrograph, plan view, table, and animation. It is also possible to display the setting
parameters, rainfall data, discharges and water level in each tank, and river crosssectional results as shown in Fig. 5.6. It is also possible to display simulation results
of two or more locations simultaneously and in different conditions.
5.3 Case Studies of IFAS Applications
IFAS model has been applied for flood analysis and forecast at several river basins
in different Asia countries as shown in Fig. 5.7. Researchers have applied IFAS
model for flood simulations at river basins in Pakistan (Aziz and Tanaka 2011),
Malaysia (Hafiz et al. 2013, 2014), Indonesia (Bormudoi et al. 2011), Vietnam (Chinh
et al. 2014), the Philippines (Miyamoto et al. 2014), Thailand (Chuenchooklin and
Pangnakorn 2015), and Afghanistan (Aziz and Satofuka 2015). The performances
of IFAS for flood simulation at different catchment characteristics are summarized
in Table 5.1. Hafiz et al. (2013) and Hafiz et al. (2014) applied the IFAS model to
simulate the floods in the Kelantan and Dungun river basin in Malaysia. Their results
showed that the error percentage for peak flow for the Kelantan River basin was
26%, while Nash–Sutcliffe Efficiency (NSE) for IFAS simulations at the Dungun
River basin was 0.72. Miyamoto et al. (2014) also obtained high accuracy of flood
predictions in the Cagayan River basin, the Philippines by using combined satellite
and ground rainfall using IFAS model. Flood simulation by IFAS model was applied
at the Chindwin River basin in Myanmar. The two-tank model in IFAS showed that it
is able to simulate the first major flood peak well and other major flood peak timing
well but underestimated the low flows. Meanwhile, the three-tank model reproduced