Appendix F - Flood Study

                                                                                                    Flood Study
                                                                                          Noosa Care - Carramar




2              Available Information
2.1            Digital Terrain Model
A DTM has been compiled from the LiDAR data obtained from the Department of Natural Resources and
Mines (DNRM). The digital elevation model (DEM) was constructed as a rectangular grid of elevations
sampled from this DTM.
The DEM defines the topography of the catchment and has been used in the hydrological analysis to delineate
the catchment / sub-catchments. Within the hydraulic modelling, the DEM has been used to define the 2D
model topography and to report hydraulic model results.
The DEM extents used within the study area is shown in Figure 2-1. A 4 metre grid cell size has been adopted.




Figure 2-1 DEM with Aerial Photography




24 July 2017                                       Cardno                                                    3