Articles | Volume 8, issue 2
Research article
06 May 2020
Research article |  | 06 May 2020

Emerging crescentic patterns in modelled double sandbar systems under normally incident waves

Giovanni Coco, Daniel Calvete, Francesca Ribas, Huib E. de Swart, and Albert Falqués

Related authors

On the use of convolutional deep learning to predict shoreline change
Eduardo Gomez-de la Peña, Giovanni Coco, Colin Whittaker, and Jennifer Montaño
Earth Surf. Dynam., 11, 1145–1160,,, 2023
Short summary
Modelling extreme water levels using intertidal topography and bathymetry derived from multispectral satellite images
Wagner L. L. Costa, Karin R. Bryan, and Giovanni Coco
Nat. Hazards Earth Syst. Sci., 23, 3125–3146,,, 2023
Short summary
A predictive equation for wave setup using genetic programming
Charline Dalinghaus, Giovanni Coco, and Pablo Higuera
Nat. Hazards Earth Syst. Sci., 23, 2157–2169,,, 2023
Short summary
The role of geological mouth islands on the morphodynamics of back-barrier tidal basins
Yizhang Wei, Yining Chen, Jufei Qiu, Zeng Zhou, Peng Yao, Qin Jiang, Zheng Gong, Giovanni Coco, Ian Townend, and Changkuan Zhang
Earth Surf. Dynam., 10, 65–80,,, 2022
Short summary
The use of genetic programming to develop a predictor of swash excursion on sandy beaches
Marinella Passarella, Evan B. Goldstein, Sandro De Muro, and Giovanni Coco
Nat. Hazards Earth Syst. Sci., 18, 599–611,,, 2018

Related subject area

Physical: Geomorphology (including all aspects of fluvial, coastal, aeolian, hillslope and glacial geomorphology)
Role of the forcing sources in morphodynamic modelling of an embayed beach
Nil Carrion-Bertran, Albert Falqués, Francesca Ribas, Daniel Calvete, Rinse de Swart, Ruth Durán, Candela Marco-Peretó, Marta Marcos, Angel Amores, Tim Toomey, Àngels Fernández-Mora, and Jorge Guillén
Earth Surf. Dynam., 12, 819–839,,, 2024
Short summary
A machine learning approach to the geomorphometric detection of ribbed moraines in Norway
Thomas J. Barnes, Thomas V. Schuler, Simon Filhol, and Karianne S. Lilleøren
Earth Surf. Dynam., 12, 801–818,,, 2024
Short summary
Stream hydrology controls on ice cliff evolution and survival on debris-covered glaciers
Eric Petersen, Regine Hock, and Michael G. Loso
Earth Surf. Dynam., 12, 727–745,,, 2024
Short summary
Time-varying drainage basin development and erosion on volcanic edifices
Daniel O'Hara, Liran Goren, Roos M. J. van Wees, Benjamin Campforts, Pablo Grosse, Pierre Lahitte, Gabor Kereszturi, and Matthieu Kervyn
Earth Surf. Dynam., 12, 709–726,,, 2024
Short summary
Geomorphic risk maps for river migration using probabilistic modeling – a framework
Brayden Noh, Omar Wani, Kieran B. J. Dunne, and Michael P. Lamb
Earth Surf. Dynam., 12, 691–708,,, 2024
Short summary

Cited articles

Aagaard, T.: Multiple-bar morphodynamics and its relation to low-frequency edge waves, J. Coastal Res., 7, 801–813, 1991. a
Bowen, A. J. and Inman, D. L.: Edge waves and crescentic bars, J. Geophys. Res., 76, 8662–8671, 1971. a
Brivois, O., Idier, D., Thiébot, J., Castelle, B., Le Cozannet, G., and Calvete, D.: On the use of linear stability model to characterize the morphological behaviour of a double bar system. Application to Truc Vert beach (France), C. R. Geosci., 344, 277–287, 2012. a
Caballeria, M., Coco, G., Falqués, A., and Huntley, D. A.: Self-organization mechanisms for the formation of nearshore crescentic and transverse sand bars, J. Fluid Mech., 465, 379–410, 2002. a, b
Calvete, D., Dodd, N., Falqués, A., and van Leeuwen, S. M.: Morphological Development of Rip Channel Systems: Normal and Near Normal Wave Incidence, J. Geophys. Res., 110, C10006,, 2005. a, b, c, d
Short summary
Sandbars are ubiquitous features of the surf zone. They are rarely straight and often develop crescentic shapes. Double sandbar systems are also common, but the possibility of feedback between inner and outer sandbars has not been fully explored. The presence of double sandbar systems affects wave transformation and can result in a variety of spatial patterns. Here we model the conditions, waves and initial bathymetry that lead to the emergence of different patterns.