Coastal vulnerability in the Mediterranean sector between Fnideq and M'diq (North of Morocco)

TL;DRAbstract

This study assessed coastal vulnerability to erosion processes along a 24-km-long littoral with different levels of human occupation. An aerial photogram-metric flight and a Quickbird satellite image were used for mapping land uses and reconstructing coastal evolution from 1986 to 2003. Maximum erosion (-2.48 myr-1) was recorded south of Marina Kabila port and maximum accretion (+2.25 myr-1) south of Marina Smir port. Erosion/accretion rates have been divided into five categories and land uses have been mapped and divided into three categories. Coastal vulnerability has been assessed by combining coastal trend with land-use categories: 10% of the littoral recorded >very high> vulner-ability, 29% recorded >high> vulnerability, and 61% of the investigated littoral presented >null> and >low> vulnerability. The >Imminent Collapse Zone>, i.e. the littoral zone threatened by imminent erosion, presented mean values of 10.34 m, with maximum and minimum values of 1

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