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• W2970392783 abstract "The general objective of this study is to contribute to the actual and future acknowledging of the coastline dynamics of a portion of the WestCameroon coast using Landsat satellite images 3, 7 and 8 from 1979 to 2018. To achieve this objective, the images were pre-treated through atmospheric corrections using the ENVI 5.1 software, which enabled the digitalization of the coastlines of the study zone in the different images using the ArcGIS version 10.1 software and then the statistical computation of the speeds of evolution of the coastline at different dates was done using DSAS version 4.3. The main results obtained show two evolutionary trends of coastal linear interest: in the long term, the study has given a decline in the coastline of an annual average rate equal to -1.09 m/year between 1979 and 2018 and in the medium term, the study shows an advance of the coastline with an average speed of evolution equal to +0.75 m/year between 2000 and 2018. In the same period, the zone experienced a short-term constant erosion between 2000-2005 and 2005-2008 with an average rate of -1.12 m/year, a slight stability between 2008 and 2012 with a speed of -0.08 m/year, while from 2012 to 2016 it has undergone an average evolution of +2.44 m/year. A forecast of the phenomenon in 2028 has given a coastline position of 10.90 m compared to its current position, which could jeopardize hotel infrastructure such as: Seme Beach Hotel; Madison Beach; Etisah Beach and the fishing camps of Batoke village during episodes of high tide. La presente etude a pour objectif general de contribuer a la connaissance actuelle et future de la dynamique du trait de cote d’une portion de la cote Ouest-camerounaise a l’aide des images satellitaires Landsat 3, 7 et 8 de 1979 a 2018. Pour atteindre cet objectif, les images ont subi un pretraitement a travers des corrections atmospheriques a l’aide du logiciel ENVI 5.1; ce qui a permis la digitalisation destraits de cotes de la zone d’etude contenus dans les differentes images a l’aide du logiciel ArcGIS version 10.1 puis le calcul statistique des vitesses d’evolution du trait de cote a differentes date s’est effectue a l’aide de DSAS version 4.3. Les principaux resultats obtenus nous montrent deux tendances evolutives du lineaire cotier d’interet : sur le long terme, l’etude a donne un recul du trait de cote d’un taux moyen annuel egal a -1,09 m/an entre 1979 et 2018 et a moyen terme, l’etude montre une avancee du trait de cote avec une vitesse moyenne d’evolution egale a +0,75 m/an entre 2000 et 2018. Dans cette meme periode, la zone a connu a court terme une situation constante d’erosion entre 2000-2005 et 2005-2008 avec un taux moyen de -1,12 m/an, une legere stabilite entre 2008 et 2012 avec une vitesse de -0,08 m/an, tandis que de 2012 a 2016, elle a subi un engraissement en moyenne de +2,44 m/an. Une prevision du phenomene en 2028 a donne une position du trait de cote de 10,90 m par rapport a sa position actuelle, ce qui pourrait mettre en peril des infrastructures hotelieres telles que : Seme Beach Hotel ; Madison Beach ; Etisah Beach et les campements des pecheurs du village Batoke pendant les episodes de marees de vives eaux." @default.
• W2970392783 created "2019-09-05" @default.
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• W2970392783 date "2019-08-31" @default.
• W2970392783 modified "2023-10-17" @default.
• W2970392783 title "Modelisation de la Dynamique du Trait de Cote sur une Portion de la Cote Ouest Cameroun Allant de Batoke a Seme Beach par Imagerie Landsat de 1979 a 2018" @default.
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• W2970392783 doi "https://doi.org/10.19044/esj.2019.v15n24p165" @default.
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