Reliable estimates of river stream fl ow and fl ood zoning maps are needed for water resourcesmanagement such as fl ood mitigation, water supply, dam construction and irrigation. Flood zoning needsaccurate data and is one of the non-structural fl ood management methods. This paper describes theapplication of HEC-RAS and GIS model to determine fl oodplains maps for the part of Sardabrud Rivertha...

Digital surface models, land use and rainfall data were used to simulate water areas using Hydrologic Engineering Centres River Analysis System (HEC-RAS) software. Multi-temporal synthetic aperture radar (SAR) was for the detection of flood prone area calibrate HEC-RAS, due lack validation in New Cairo City, Egypt. The thresholding method applied two Sentinel-1 images, one pre- post-flash event...

abstract a significant deficiency of most computer models used for stream floodplain analysis is that the locations of structures impacted by floodwaters, such as bridges, roads, and buildings, cannot be effectively compared to the floodplain location. this research presents a straightforward approach for processing output of the hec-ras hydraulic model, to enable two- and three dimensional flo...

When reservoirs are built, they subject to some degree of sedimentation. This happens because the increase in wetted area reduces flow velocity. As a result, sustaining forces sediments diminished. One mechanism assess reservoir sedimentation is through physical models, which provide data for numerical models. parameters that needs be input into model Manning coefficient. Thus, aim this study w...