@article{fdi:010082246,
  title = {{M}odelling cross-shore shoreline change on multiple timescales and their interactions},
  author = {{S}chepper, {R}. and {A}lmar, {R}afa{\¨e}l and {B}ergsma, {E}. and de {V}ries, {S}. and {R}eniers, {A}. and {D}avidson, {M}. and {S}plinter, {K}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n this paper, a new approach to model wave-driven, cross-shore shoreline change incorporating multiple timescales is introduced. {A}s a base, we use the equilibrium shoreline prediction model {S}hore{F}or that accounts for a single timescale only. {H}igh-resolution shoreline data collected at three distinctly different study sites is used to train the new data-driven model. {I}n addition to the direct forcing approach used in most models, here two additional terms are introduced: a time-upscaling and a time-downscaling term. {T}he upscaling term accounts for the persistent effect of short-term events, such as storms, on the shoreline position. {T}he downscaling term accounts for the effect of long-term shoreline modulations, caused by, for example, climate variability, on shorter event impacts. {T}he multi-timescale model shows improvement compared to the original {S}hore{F}or model (a normalized mean square error improvement during validation of 18 to 59%) at the three contrasted sandy beaches. {M}oreover, it gains insight in the various timescales (storms to inter-annual) and reveals their interactions that cause shoreline change. {W}e find that extreme forcing events have a persistent shoreline impact and cause 57-73% of the shoreline variability at the three sites. {M}oreover, long-term shoreline trends affect short-term forcing event impacts and determine 20-27% of the shoreline variability.},
  keywords = {equilibrium shoreline modelling ; {S}hore{F}or ; cross-shore sediment ; transport ; multiple timescales ; {AUSTRALIE} ; {VIET} {NAM} ; {NOUVELLE} {ZELANDE}},
  booktitle = {},
  journal = {{J}ournal of {M}arine {S}cience and {E}ngineering},
  volume = {9},
  numero = {6},
  pages = {582 [27 p.]},
  year = {2021},
  DOI = {10.3390/jmse9060582},
  URL = {https://www.documentation.ird.fr/hor/fdi:010082246},
}