@article{fdi:010085271, title = {{S}atellite, drone and video camera multi-platform monitoring of coastal erosion at an engineered pocket beach : a showcase for coastal management at {E}lmina {B}ay, {G}hana ({W}est {A}frica)}, author = {{A}ngnuureng, {D}. {B}. and {B}rempong, {K}. {E}. and {J}ayson-{Q}uashigah, {P}. {N}. and {D}ada, {O}. {A}. and {A}kuoko, {S}. {G}. {I}. and {F}rimpomaa, {J}. and {M}attah, {P}. {A}. and {A}lmar, {R}afa{\¨e}l}, editor = {}, language = {{ENG}}, abstract = {{R}egular monitoring of coastal areas is a prerequisite to evade any imminent erosive disaster. {H}owever, data-driven decisions become more uncertain when a monitoring platform is unable to capture events of a certain frequency. {E}rosion along {G}hana's coastline is endemic as in most of the {G}ulf of {G}uinea countries in {W}est {A}frica. {T}he current challenge is how to document and understand the dimensions of erosion despite limited human and logistical capacity. {I}n the present study, shoreline change was assessed by an intensive multi-platform data collection strategy deployed for a year at {E}lmina {B}ay, {G}hana through the use of drones, a shore-based camera, {S}entinel satellite images and a dumpy level. {T}he potential causes and areas of erosion at {E}lmina were clearly identified at a very fine scale by our sediment budget calculations. {W}hile a section of the beach in front of the {E}lmina {C}astle was adequately protected by the presence of jetties , downdrift of the larger unprotected portion of the beach was out of balance with high erosion rates. {F}urthermore, the results revealed that frequent, local video cameras and drones are more effective for operational monitoring of shoreline changes at all time scales. {S}atellite imagery is also a potential alternative tool, but its low temporal resolution, compared with video cameras, makes it unsuitable for detecting daily or event-based beach changes, and is of low accuracy for practitioners and management decisions.}, keywords = {{R}emote sensing ; {C}oastal management ; {S}horeline erosion ; {S}horeline monitoring tools ; {P}ocket beaches ; {GHANA} ; {GOLFE} {DE} {GUINEE} ; {ELMINA} {BAIE}}, booktitle = {}, journal = {{R}egional {S}tudies in {M}arine {S}cience}, volume = {53}, numero = {}, pages = {102437 [12 p.]}, ISSN = {2352-4855}, year = {2022}, DOI = {10.1016/j.rsma.2022.102437}, URL = {https://www.documentation.ird.fr/hor/fdi:010085271}, }