Development of Hydrological Model for Effective Flood Control

The paper presents the application of storm water detention basins/ponds in urban catchments for the protection of the cities or parts from floods risks, and for the purpose of protecting the water resources from the pollutants running off with storm water flow. The simplified mathematical hydrologic relationships were derived in the research work aiming to determine volumes of rainfall detention basins/ponds based on patterns of rainfall charts (rainfall intensity versus rainfall duration and return period), applying this method for rainfall floods of return period (n) between 0.5 (probability of one flood per 2 years) and 0.2 (probability of one flood per 5 years) on case study of Lattakia city as an example for a Coastal Arab Region, and on case study of Damascus as an example for an Arid or Semi-Arid Region. The results came accurate besides being attained through simple application of this developed model, with the possibility to generalize this method to other climatic regions where rainfall charts or rainfall stations are available