Assessing flood risks in arid zones by linking remote sensing techniques and gis

Abstract EN

Regarding the importance of protecting arid areas in Egypt from flood hazards, this research was initiated to assess flood hazards in such zones by integrating hydrologic modeling, hydrodynamic modeling, remote sensing techniques, and GIS, where Sudr valley was considered a case study.

this study presents a proposal for new methods to assess expected flood hazards that impacted the arid projects by simulating the Sudr valley modeling case.

the study is based on applying the HEC-HMS program to draw valleys and outflow basins and compute their morphometric attributes thus computing the peak flow hydrograph of floods for different basin outflow.

the candidate also implied the hydraulic model (HEC-RAS) to calculate flood flow components (depth and velocity) thus mapping floodplain areas.

results were obtained; analyzed and represented on maps.

the results highlighted that the updated information on Sudr valley hydrology and morphology was important to decision-makers.

in addition, the tooled modeling is applicable to delineate Sudr valley.

it was further recommended to follow the utilized methodology to visualize similar areas.