Coupled and noncoupled behavior of three-dimensional morphological patterns in a double sandbar system Ruessink, B en_US Coco, G en_US Ranasinghe, Roshanka en_US Turner, Ian en_US 2021-11-25T14:34:55Z 2021-11-25T14:34:55Z 2007 en_US
dc.description.abstract [1] Eight weeks of daily (low tide) time exposure images of the Gold Coast (Australia) were used to analyze the development of three-dimensional morphological patterns in a double sandbar system. Under continued low-energy wave conditions following a morphological reset (storm) event, the patterns in both the inner and outer bar evolved, albeit at different spatial and temporal scales, through the accretionary sequence commonly observed at single barred beaches. Continuous wavelet transforms (CWT) of the inner bar and outer bar breaker lines show that after a storm the patterns developed at a wide range of alongshore wavelengths and that variations in wavelength over space and time were common. With the bivariate extension of CWT, continuous cross-wavelet transforms, it is found that the initial inner bar and outer bar three-dimensional patterns were spatially noncoupled. However, over time the inner-bar morphology appeared to couple with that of the outer bar, with the inner bar patterns developing in response to the increasingly three-dimensional, onshore propagating outer bar. The wavelet analysis suggests that the outer bar geometry and the distance between the inner and outer bars are critical parameters governing the morphological evolution of the composite double sandbar system. en_US
dc.identifier.issn 0148-0227 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title Coupled and noncoupled behavior of three-dimensional morphological patterns in a double sandbar system en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.relation.faculty Engineering
unsw.relation.ispartofissue C7 en_US
unsw.relation.ispartofjournal Journal of Geophysical Research-Atmospheres en_US
unsw.relation.ispartofpagefrompageto 1-11 en_US
unsw.relation.ispartofvolume 112 en_US
unsw.relation.originalPublicationAffiliation Ruessink, B en_US
unsw.relation.originalPublicationAffiliation Coco, G en_US
unsw.relation.originalPublicationAffiliation Ranasinghe, Roshanka en_US
unsw.relation.originalPublicationAffiliation Turner, Ian, Civil & Environmental Engineering, Faculty of Engineering, UNSW en_US School of Civil and Environmental Engineering *
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