Please enter verification code
Remote Sensing and GIS Contribution to the Detection of Coastal Slope Failure in the Safi Area, Morocco
Earth Sciences
Volume 3, Issue 3, June 2014, Pages: 76-84
Received: May 29, 2014; Accepted: Jun. 17, 2014; Published: Jun. 30, 2014
Views 4414      Downloads 301
El Bchari, Fatima, Department of Geology, Polydisciplinary Faculty- University of Cadi Ayyad, Safi, Morocco
Theilen-Willige, Barbara, Institute of Applied Geosciences, Technical University, Berlin, Germany
Ait Malek Halima, Department of Geology, Polydisciplinary Faculty- University of Cadi Ayyad, Safi, Morocco
Article Tools
Follow on us
Located in the urban area, the cliff of Sidi Bouzid and Amouni shows slope instabilities due to falls and collapse blocks and rotational block gliding. These phenomena form a risk to the economic, social, cultural and environmental issues. Geomorphologic, lithologic and tectonic conditions (ie surfaces of discontinuities such as fractures) combined with the influence of marine abrasion explain the increased instability of this part of the Sahel - Safi. This ongoing slope failure is a handicap for coastal development projects. The activity of these phenomena -more or less remarkable- is monitored by the GIS integrated observation and evaluation of field, aerial and satellite data, allowing to establish synthesis maps that give a risk assessment in this sector. Digital Elevation Model (ASTER_GDEM2) is used for the morphometric analysis of this area and as a base for the weighted overlay of causal / preparatory morphometric factors influencing the slope stability.
Risk, Slips, Remote Sensing, GIS, Map Synthesis, Cliff, Safi, Morocc
To cite this article
El Bchari, Fatima, Theilen-Willige, Barbara, Ait Malek Halima, Remote Sensing and GIS Contribution to the Detection of Coastal Slope Failure in the Safi Area, Morocco, Earth Sciences. Vol. 3, No. 3, 2014, pp. 76-84. doi: 10.11648/
CANEROT J., DURAND-DELGA M., PEYBERNES B., RAHHALI I., REY J. et SAINT-MARC P., Précisions biostratigraphiques et lithostratigraphiques sur le Crétacé inférieur-moyen des bassins côtiers de Safi et d’Essaouira (Maroc). Corrélations du mésozoique et du cénozoique de l’Afrique de l’Ouest, V 183, n°183, P.I.C.G.-U.N.E.S.C.O. Rabat, 1982, p.21-24
CHAU,K.T., SZE,Y.L., FUNG,M.K., WONG,W.Y., FONG,E.L. CHAN,L.C.P., Landslide hazard analysis for HongKong using landslide inventory and GIS. Computers & Geosciences, N° 30, 2004, 429–443
EL BCHARI F., RHINANE H. & SOUHEL. A, Apport des systèmes d’informations géographiques (SIG) à l’étude géologique –sub surface- du sahel de Abda (Meseta côtière, Maroc). 1er Congrès International sur les Systèmes d’Informations Géographiques et Gestion du territoire (SIG-GT 2010), Fac Science Ain Chock Casablanca, Maroc, livre des résumé.2010 pp 42
ETTACHFINI,M., COMPANY,M., TAVERA,J.M.,TAJ-EDDINE K. et REY J Nouvelles données sur les Ammonites valanginiennes du bassin de Safi (Maroc). Conséquences biostratigraphiques, paléobiogéographiques et séquentielles. C. R. Acad. Sci. Paris N°327,1998, p.319-325
GIGOUT M Etudes géologiques sur la méséta marocaine occidentale (arrière-pays de Casablanca, Mazagan et Safi), Notes et Mémoires. Serv. Géol. Rabat, N°86, 1951, 507p
IBNOUSSINA M, ZAMAMA M., SEKKAT Z., AYEB M., FROHLICH F., WITAM O., Comportement géotechniquesdes argiles : Cas des argiles brunes de Lalla Fatna (Safi, Maroc). Ann. Soc. Géol. du Nord., N°2, 2004, p.15-20
LI ,W., HUANG,R., TANG C., XU, Q., WESTEN,C., Co-seismic Landslide Inventory and Susceptibility Mapping in the 2008 Wenchuan Earthquake Disaster Area, China. J. Mt. Sci., 2013, 10 (3), p. 339–354, DOI: 10.1007/s11629-013- 2471-5
MEGHRAOUI,M.; SILVIA PONDRELLI,S. Active faulting and transpression tectonics along the plate boundary in North Africa. Annals of Geophysics, 55, 2012, 955-967, doi: 10.4401/ag-4970
NETELER M «Introduction to GRASS GIS software» Hannover - Germany, 2. Edition, 1998, 79p
NEUHÄUSER,B., TERHORST,B., DAMM,B., Landslide Identification and Modelling in Flysch Areas of the European Alpine Foreland, Zeitschrift für Geomorphologie, Vol. 56, Suppl. 4, p.115–146
OUADIA M. « Les formations plio-quaternaires dans le domaine mesetien occidental du Maroc entre Casablanca et Safi : géomorphologie, sédimentologie, paléoenvironnement quaternaires et évolution actuelle », Université Mohammed V-Agdal, Rabat, 1998, 303p
ROCH E, Etudes géologiques dans la région méridionale du Maroc Occidentale Notes et Mém.,Serv., Géol. Rabat N°2, 1930 152p
TAJEDDINE K , REY J., DU DRESNAY R. La série Mésozoique des bassins de Safi et d’Essaouira. Corrélations du mésozoique et du cénozoique de l’Afrique de l’Ouest, P.I.C.G.-U.N.E.S.C.O. Marrakech, n°183, 1985, 183p
Theilen-Willige,B. (2011): The Use of RapidEye-Satellite Data for Earthquake Emergency Preparedness and Management in Central-Hungary.- In: Borg,E. and Daedelow,H. (2011): RapidEye Science Archive (RESA) – Erste Ergebnisse, 3.RESA-Workshop, p.103-113, GITO mbH-Verlag, Berlin
THEILEN-WILLIGE,B. Use of RapidEye-Data for the Detection of Natural Hazard Prone Areas (Earthquake, Tsunami, Landslides, Desertification) in W-Morocco. Report for the German Aerospace Center and RapidEye AG, 2013, RESA-Project No.621, 82 pp.
Theilen-Willige,B., Ralf Löwner,R., El Bchari,F., Ait Malek,H., Boumaggard,E., Chaibi,M., Charif,A., Nakhcha,C., Ait Ougougdal, M., Ridaoui,M. (2014): Remote Sensing and GIS Contribution to the Detection of Areas Susceptible to Natural Hazards in the Safi Area, W- Morocco. 1st International Conference on Information and Communication Technologies for Disaster Management (ICT-DM'2014), March 24-25,2014, Alg iers, Conference Proceedings, ID:99.
Theilen-Willige,B., Ait Malek,H., Charif,A., El Bchari,F. , Chaïbi,M. Remote Sensing and GIS Contribution to the Investigation of Karst Landscapes in NW-Morocco. Geosciences, special issue: Geological Mapping and Modeling of Earth Architectures, in press
WITAM O. Etude stratigraphique et sédimentologique de la série mésozoïque du bassin de Safi », Université Cadi Ayyad de Marrakech, 1988, 212p
Weatherbase: (access: May 2014)
Satellite Data: ASTER DGDEM:
LANDSAT: University of Mary-land, ex.jsp USGS :
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
Tel: (001)347-983-5186