@article{fdi:010063188,
  title = {{O}bserved destruction of a beach cusp system in presence of a double-coupled cusp system : the example of {G}rand {P}opo, {B}enin},
  author = {{S}enechal, {N}. and {L}aibi, {R}. {A}. and {A}lmar, {R}afa{\¨e}l and {C}astelle, {B}. and {B}iausque, {M}. and {L}efebvre, {J}ean-{P}ierre and {A}nthony, {E}. {J}. and {D}orel, {M}atthieu and {C}huchla, {R}{\'e}my and {H}ounkonnou, {M}. {H}. and {P}enhoat, {Y}ves du},
  editor = {},
  language = {{ENG}},
  abstract = {{B}each cusps are common features of steep reflective and intermediate beaches. {H}owever, very few observations have reported double coupled cusp systems. {H}ere, we present a dataset of observations of a beach exhibiting two sets of beach cusps. {D}ata were collected at {G}rand {P}opo {B}each ({B}enin, {W}est {A}frica) in {F}ebruary 2013. {D}aily topographic surveys along a 380 in long stretch of shore allowed observation of the dynamics of the two sets of beach cusps. {A}t the beginning of the field survey, we clearly observe two sets of cusps; the upper beach cusps system is relatively asymmetric with a typical wavelength of about 45 m, while the lower beach cusps system is relatively symmetric with a typical wave length slightly shorter (about 35 m). {A}fter two days, we measured the total destruction of the lower set of beach cusps while the upper set of beach cusps was only partially destroyed. {T}he data suggest that destruction of the lower beach cusp system may be related to persistent accretionary conditions and/or calm conditions but probably also to the transition from wave-driven circulation (dominated by weak alongshore currents with flash and swash rips), to a second period characterized by dominant longshore currents further increasing in speed (with rare swash rips). {C}onversely, the disappearance of the western upper beach cusp may be related to an accretionary pattern and to the coalescence of two individual features. {O}ur observations, consistent with previous works, suggest that beach cusps certainly arise as a result of some combination of erosion and accretion.},
  keywords = {reflective beach ; topographic survey ; cusp migration ; {BENIN}},
  booktitle = {},
  journal = {{J}ournal of {C}oastal {R}esearch},
  numero = {no sp{\'e}cial 70},
  pages = {669--674},
  ISSN = {0749-0208},
  year = {2014},
  DOI = {10.2112/si70-113.1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010063188},
}