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Flash flood risk assessment in urban arid environment: case study of Taibah and Islamic universities’ campuses, Medina, Kingdom of Saudi Arabia / Mohamed Abdulrazzak in Geomatics, Natural Hazards and Risk, vol 10 n° 1 (2019)  

Public [article]  inGeomatics, Natural Hazards and Risk > vol 10 n° 1 (2019) . - pp 780 - 796 Titre : Flash flood risk assessment in urban arid environment: case study of Taibah and Islamic universities’ campuses, Medina, Kingdom of Saudi Arabia Type de document : Article/Communication Auteurs : Mohamed Abdulrazzak, Auteur ; Amro Elfeki, Auteur ; Ahmed Samy Kamis, Auteur ; Mostafa Kassab, Auteur ; Nassir Alamri, Auteur ; Anis Chaabani , Auteur ; Kashif Noor, Auteur Année de publication : 2019 Article en page(s) : pp 780 - 796 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] Arabie Saoudite [Termes IGN] inondation [Termes IGN] Médine [Termes IGN] modèle hydrographique [Termes IGN] outil d'aide à la décision [Termes IGN] risque naturel [Termes IGN] zone aride Résumé : (auteur) Flooding impacts can be reduced through application of suitable hydrological and hydraulic tools to define flood zones in a specific area. This article proposes a risk matrix technique which is applied on a case study of Taibah and Islamic universities catchment in Medina, Kingdom of Saudi Arabia (KSA). The analysis is based on integration of the hydrologic model hydraulic models to delineate the flood inundation zones. A flood risk matrix is developed based on the flood occurrence probability and the associated inundation depth. The risk matrix criterion is classified according to the degree of risks as high, moderate and low. The case study has indicted low to moderate risk for flood frequencies of 5 years return periods and moderate to high risk may exist for flood with rerun period of 50 and 100 years. The results are projected on a two-dimensional satellite images that shows the geographical locations exposed to flooding. A quantitative summary of the results have been presented graphically to estimate the magnitude of the inundation areas that can assess the degree of damage and its economic aspects. The developed flood risk matrix tool is a quantitative tool to assess the damage which is crucial for decision makers. Numéro de notice : A2019-667 Affiliation des auteurs : Géodésie+Ext (mi2018-2019) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/19475705.2018.1545705 Date de publication en ligne : 23/01/2019 En ligne : https://doi.org/10.1080/19475705.2018.1545705 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=99933 [article]

The impact of rainfall distribution patterns on hydrological and hydraulic response in arid regions: case study Medina, Saudi Arabia / Mohamed Abdulrazzak in Arabian Journal of Geosciences, vol 11 n° 21 (November 2018)  

Public [article]  inArabian Journal of Geosciences > vol 11 n° 21 (November 2018) . - n° 679 Titre : The impact of rainfall distribution patterns on hydrological and hydraulic response in arid regions: case study Medina, Saudi Arabia Type de document : Article/Communication Auteurs : Mohamed Abdulrazzak, Auteur ; Amro Elfeki, Auteur ; Ahmed Samy Kamis, Auteur ; Mostafa Kassab, Auteur ; Nassir Alamri, Auteur ; Kashif Noor, Auteur ; Anis Chaabani , Auteur Année de publication : 2018 Projets : 2-Pas d'info accessible - article non ouvert / Article en page(s) : n° 679 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Arabie Saoudite [Termes IGN] inondation [Termes IGN] Médine [Termes IGN] modèle hydrographique [Termes IGN] précipitation [Termes IGN] zone aride Résumé : (auteur) Rainfall distribution patterns (RDPs) are crucial for hydrologic design. Hydrologic modeling is based on Soil Conservation Services (SCS) type RDPs (SCS type I, IA, II, and III). SCS type II method is widely used by hydrologists in arid regions. These RDPs were designed for the USA and similar temperate regions. There is no scientific justification for using SCS type II method in arid regions. The consequences of using SCS type II have impacts on the hydrologic and hydraulic modeling studies. The current paper investigates the validity of the SCS type II and in arid regions. New temporal RDPs were applied and compared with SCS type II RDPs. The produced peak discharges, volumes, maximum inundation depths, top widths, and velocities from both approaches were analyzed. An application is made on the protection channel in Taibah and Islamic Universities campuses in Medina, Saudi Arabia. A methodology was followed which included frequency analysis, catchment modeling, hydrological modeling, and hydraulic modeling. Results indicated that there are considerable consequences on infrastructural design, and hydrologic and hydraulic parameters if inappropriate RDPs are used. The investigation confirmed that the SCS type RDPs do not reflect the actual flood features in arid regions. Numéro de notice : A2018-668 Affiliation des auteurs : LASTIG LAREG+Ext (2012-mi2018) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s12517-018-4043-z Date de publication en ligne : 08/11/2018 En ligne : http://dx.doi.org/10.1007/s12517-018-4043-z Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=94265 [article]