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Geospatial analysis for the determination of hydro-morphological characteristics and assessment of flash flood potentiality in arid coastal plains; a case in southwestern Sinai, Egypt

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doi: 10.15446/esrj.v20n1.49624
Authors:Wahid, Ahmed; Madden, Marguerite; Khalaf, Fikry; Fathy, Ibtehal
Author Affiliations:Primary:
Port Said University, Geology Department, Port Said, Egypt
Other:
University of Georgia, United States
Suez Canal University, Egypt
Volume Title:Earth Sciences Research Journal
Source:Earth Sciences Research Journal, 20(1), p.E1-E9. Publisher: Universidad Nacional de Colombia, Facultad de Ciencias, Departamento de Geociencias, Bogota, Colombia. ISSN: 1794-6190
Publication Date:2016
Note:In English with Spanish summary. 53 refs.; illus., incl. 4 tables, geol. sketch maps
Summary:Coastal plains with a unique geographic setting and renewable natural resources are promising for sustainable development; however, these areas may be subjected to some environmental hazards due to their geological setting. One of those hazards is the seasonal flash flood that can threaten existing and future development projects in such critical areas. Southwestern Sinai, Egypt, is a coastal plain that is characterized by complex geological setting an arid climate with seasonal rainfall which can result in a high runoff. The aim of this work is to model spatially the runoff amount and density related to flash flood development and to create a flash flood hazard map of the plain as an example of coastal plain in a desert environment with large and complex hydrologic setting. In this research, ASTER images are used to develop a digital elevation model (DEM) and land use/land cover (LULC) data sets of the study area. Geographic information system (GIS) was used to perform runoff and flash potential flood analyses of the created databases and to show distributed runoff and flooding potential in spatial maps. A module was created in a GIS environment to develop a flash flood potential index map. It was clear that the main two factors controlling runoff amounts and flash flood potential in such kinds of areas are the slope and soil types. The final dataset map procedure by this work can be very helpful in land use planning by highlighting the areas subjected to flash floods.
Subjects:Arid environment; ASTER instrument; Cartography; Coastal plains; Digital terrain models; Earth Observing System; Environmental management; Erosion features; Flash floods; Floods; Geographic information systems; Geologic hazards; Hydrology; Imagery; Infiltration; Information systems; Interpretation; Land management; Land use; Natural hazards; Natural resources; Rainfall; Runoff; Spatial data; Sustainable development; Terrestrial environment; Africa; Egypt; North Africa; Sinai; Qaa Plain
Coordinates:N274500 N284500 E0341000 E0331300
Record ID:798862-4
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute.
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