Beach erosion and recovery during consecutive storms at a steep-sloping, meso-tidal beach

Auteur(s) et Affiliation(s)



Description :
This study analyses beach morphological change during 6 consecutive storms acting on the meso-tidal Faro Beach (south Portugal) between 15 December 2009 and 7 January 2010. Morphological change of the sub-aerial beach profile was monitored through frequent topographic surveys across 11 transects. Measurements of the surf/swash zone dimensions, nearshore bar dynamics, and wave run-up were extracted from time averaged and timestack coastal images, and wave and tidal data were obtained from offshore stations. All the information combined suggests that during consecutive storm events, the antecedent morphological state can initially be the dominant controlling factor of beach response; while the hydrodynamic forcing, and especially the tide and surge levels, become more important during the later stages of a storm period.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2012, vol. 37, n°. 6, p. 583-593, nombre de pages : 11, Références bibliographiques : 38 ref.

Date :
2012

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley