@article{fdi:010077973,
  title = {{A}pplication of shore-based video and unmanned aerial vehicles (drones) : complementary tools for beach studies},
  author = {{A}ngnuureng, {D}. {B}. and {J}ayson-{Q}uashigah, {P}. {N}. and {A}lmar, {R}afa{\¨e}l and {S}tieglitz, {T}homas {C}hristian and {A}nthony, {E}. {J}. and {A}heto, {D}. {W}. and {A}ddo, {K}. {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{V}ideo camera systems have been used over nearly three decades to monitor coastal dynamics. {T}hey facilitate a high-frequency analysis of spatiotemporal shoreline mobility. {V}ideo camera usage to measure beach intertidal profile evolution has not been standardized globally and the capacity to obtain accurate results requires authentication using various techniques. {A}pplications are mostly site specific due to differences in installation. {T}he present study examines the accuracy of intertidal topographic data derived from a video camera system compared to data acquired with unmanned aerial vehicle ({UAV}, or drone) surveys of a reflective beach. {U}sing one year of 15-min video data and one year of monthly {UAV} observations, the intertidal profile shows a good agreement. {U}nderestimations of intertidal profile elevations by the camera-based method are possibly linked to the camera view angle, rectification and gaps in data. {T}he resolution of the video-derived intertidal topographic profiles confirmed, however, the suitability of the method in providing beach mobility surveys matching those required for a quantitative analysis of nearshore changes. {B}each slopes were found to vary between 0.1 and 0.7, with a steep slope in {M}ay to {J}uly 2018 and a gentle slope in {D}ecember 2018. {L}arge but short-scale beach variations occurred between {A}ugust 2018 and {O}ctober 2018 and corresponded to relatively high wave events. {I}n one year, this dynamic beach lost 7 m. {A}t this rate, and as also observed at other beaches nearby, important coastal facilities and infrastructure will be prone to erosion. {T}he data suggest that a low-cost shore-based camera, particularly when used in a network along the coast, can produce profile data for effective coastal management in {W}est {A}frica and elsewhere.},
  keywords = {intertidal morphology ; shoreline change ; beach profile ; video camera ; {UAV} ; coastal management ; {D}zita ; {GHANA}},
  booktitle = {},
  journal = {{R}emote {S}ensing},
  volume = {12},
  numero = {3},
  pages = {394 [19 ]},
  year = {2020},
  DOI = {10.3390/rs12030394},
  URL = {https://www.documentation.ird.fr/hor/fdi:010077973},
}