Results - Response of Flood Events to Land Use and Climate Change - page 143

6.5 Creating Cross Section in the HEC-GeoRAS Model

The extent of cross section locations was represented by the cross sectional cut
lines layer based on a 5 m resolution DEM using the HEC-GeoRAS model
(Fig. 6.14 ). As far as if any modeling represents prefect results, these cross sec-
tions also needed to be manually modified before being used in flood simulations
(SOBEK and HEC-RAS).
In SOBEK, the trapezium method was used to create a cross section and the
values of maximum flow width and bottom width and other information were

(c)

(a)

(b)

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(d)

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(g)

(i)

Fig. 6.14 Modeled cross sections at some sampled locations