@article{fdi:010077315, title = {{C}oastline dynamics of the northern {L}ower {C}asamance ({S}enegal) and southern {G}ambia littoral from 1968 to 2017}, author = {{T}hior, {M}. and {S}ane, {T}. and {D}ieye, {E}. {B}. and {S}y, {O}. and {C}issokho, {D}. and {B}a, {B}. {D}. and {D}escroix, {L}uc}, editor = {}, language = {{ENG}}, abstract = {{N}orthern {L}ower {C}asamance and southern {G}ambia's beaches, just like those of {W}est {A}frica, are subject to significant morpho-sedimentary dynamics characterized by coastline mobility. {S}uch mobility, combined with significant variations in different places, is characterized by some globally erosive trend (- 1.2-6 m/year, in sandy areas extending from {S}enegal to {S}ierra {L}eone and -1 to -15 m/year from {I}vory {C}oast to {N}igeria). {T}he purpose of this article is to analyze the coastline evolution in {L}ower {C}asamance and southern {G}ambia based on a diachronic survey (1968-2017). {T}he reference line used to demonstrate the variation of the coastline is the vegetation boundary. {T}he results obtained are based on the digital processing of geospatial data (aerial photographs, {L}andsat and {G}oogle {E}arth images). {T}he different variations of the coastline are obtained through the calculation of two indexes considered as the most relevant ones. {T}he first one, the {E}nd {P}oint {R}ate ({EPR}) index, helped measure the difference between two successive coastlines and the second one, the {L}inear {R}egression {R}ate ({LRR}) index, allows assessing the ability to estimate the evolution of each segment over the entire period considered. {T}hese mobility indexes ({EPR} and {LRR}) show some variable dynamics of the coastline, featured by two trends: the first one, under accretion in the 1968-1986 period and the other one, globally erosive during 1986-2017 period.}, keywords = {{C}oastal evolution ; {C}oastlines erosion ; {R}isk mapping ; {G}eospatial techniques ; {L}ower {C}asamance ; {G}ambia ; {SENEGAL} ; {CASAMANCE} ; {GAMBIE}}, booktitle = {}, journal = {{J}ournal of {A}frican {E}arth {S}ciences}, volume = {160}, numero = {}, pages = {art. 103611 [8 ]}, ISSN = {1464-343{X}}, year = {2019}, DOI = {10.1016/j.jafrearsci.2019.103611}, URL = {https://www.documentation.ird.fr/hor/fdi:010077315}, }