Appendix F - Flood Study

                                                                                                    Flood Study
                                                                                          Noosa Care - Carramar




3              Hydrology
3.1            RORB
The hydrological model RORB (Version 6.31) was used to define the model inflows. RORB calculates flood
hydrographs from storm rainfall hyetographs and can be used for modelling natural, part urban and fully urban
catchments. The Australian Rainfall and Runoff 1987 (AR&R87) methodology was used in the calculation of
hydrographs. The RORB model setup is shown in Figure 3-1.
Catchment boundaries have been established based on topographic and drainage information. Sub-catchment
boundaries and characteristics (slope) have been developed directly from the DEM.




Figure 3-1 RORB Model Setup




24 July 2017                                       Cardno                                                    5