Study of the Effect of an Environmentally Friendly Flood Risk Reduction Approach on the Oman Coastlines during the Gonu Tropical Cyclone (Case Study: The Coastline of Sur)

Tropical cyclones may be destructive in the coastal region, such as Gonu tropical cyclone, which affected Arabian Peninsula and parts of southern Iran 2007. In this study, a coupled MIKE 21/3 HD/SW (hydrodynamic/spectral wave) model was used to simulate inland flooding inside Sur port during cyclone. The 21 Cyclone Wind Generation (CWG) tool utilized generate cyclone’s wind pressure field. required input data were obtained from International Best Track Archive for Climate Stewardship (IBTrACS) imported into CWG tool. fields compared between analytical vortex European Centre Medium-Range Weather Forecasts (ECMWF) cyclone passage. Moreover, by developing new model, artificial Mangroves’ effect on investigated. results show that, contrary ECMWF data, models well captured storm event’s Furthermore, flood hazard is calculated based inundation depth, flow velocity, area’s vulnerability. map shows that 5% coast at high-risk, 49% medium-risk, 46% low-risk class port. By applying Mangroves risk reduction, high-risk area almost completely removed. However, medium zones increase 50% 50%, respectively. This information could helpful disaster reduction management future.