@article{fdi:010075143,
  title = {{S}horeline and beach cusps dynamics at the low tide terraced {G}rand {P}opo {B}each, {B}enin ({W}est {A}frica) : a statistical approach},
  author = {{B}onou, {F}. and {A}ngnuureng, {D}. {B}. and {S}ohou, {Z}. and {A}lmar, {R}afa{\¨e}l and {A}lory, {G}. and {P}enhoat du, {Y}ves},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his paper presents the description of a 2-dimensional shoreline and 3-dimensional shoreline behaviour around a 'storm free' microtidal beach from a 3-year video observation using empirical orthogonal function ({EOF}) analysis. {T}he {EOF} method is applied successfully to delineate 2{D} and 3{D} developments that show the beach evolution influenced by the action of waves and tides. {T}he {EOF} model results are in agreement with measurements that reflect the morphological concepts for the 2{D} and 3{D} cases: the first temporal {EOF} mode which accounts for an overwhelming 80% of shoreline variation reflects the alongshore-averaged cross-shore migration (2{D}) largely influenced by waves while the higher eigenfunctions with 20% shoreline variation reflect beach deformation/irregularities (3{D}). {S}horeline location is correlated to cross-shore energy flow from waves, while 3{D} is associated to the longshore energy flow. {T}he influence of wave height increases cross-shore uniform migration and beach seasonality. {T}he results show that with {EOF} method, beach cusps are clearly identified for 3{D} developments to be evaluated. {B}each cusps are well observed at low tides on video images. {T}ide and cusps increase the importance of short term events and deformation; at the lowest high tide mark, beach cusps were observed on higher spatial functions of {EOF}. {T}his indicates that a study of these morphological features as a coupled system, promotes their contribution in predicting 2{D} and 3{D} shoreline changes.},
  keywords = {{G}rand {P}opo ; {B}enin ; 2{D}-shoreline ; 3{D}-shoreline ; video ; empirical ; orthogonal function ; tidal range ; beach cusps ; {BENIN} ; {GRAND} {POPO}},
  booktitle = {},
  journal = {{J}ournal of {C}oastal {R}esearch},
  numero = {81 {N}o sp{\'e}cial},
  pages = {138--144},
  ISSN = {0749-0208},
  year = {2018},
  DOI = {10.2112/si81-018.1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010075143},
}