Results - Response of Flood Events to Land Use and Climate Change - page 175

(a) Velocity (m/s)

(b) Depth (m)

0 - 0.51 0 - 0.48

0.51 - 1.23

0.48 - 1.09

1.23 - 1.97

1.09 - 1.83

1.97 - 3.32

1.83 - 2.7

> 3.32

> 2.7

Fig. 6.43 Scenario (2); simulation results of velocity (m/s) and depth of water (m), food 2008;
(modeling without considering the dyke)

The 1957 flood event occurred on June 14. Due to a lack of data, there was no
possibility to validate the results based on measurements and observed data for
water depth and velocity parameters. Therefore, for validation of the simulation
results in this case, available photographs obtained from RTM were applied.
According to the photographs in Barcelonnette City, the banks of the river were
overtopped and inundation occurred in the river floodplain. The velocity (m/s) and
water depth (m) for the 1957 flood and modeling without a dyke are shown in
Fig. 6.47 . The maximum estimated velocity was *6.32 m/s and the maximum
water depth was *3 m in the channel.
Scenario (4): Modeling of the 1957 flood event with a maximum discharge of
480 m 3 /s, assuming the dyke for the river profile of 2008. Figures 6.48 and 6.49