Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.description.abstractIntertidal bar morphodynamics were examined at Areao Beach, a mesotidal beach located in the highly energetic Northwest coast of Portugal. A field experiment was carried out in 2002 from February 5 to March 16. During this period topographic surveys were done every three days. Offshore wave data and tidal records were used to evaluate the successive morphological changes. Morphodynamics of the two intertidal bars recorded were characterized by a landward migration over a flattened profile after a previous storm event. Differences in the dimensions of the bars were related to the smaller transported volumes as the storage of sediment at lower foreshore decreased with each bar formation and migration. Intertidal bars presented the following behaviour: formation under low energy wave conditions and significant tidal ranges; stabilisation during neap tides and migration, by successive erosion/accretion series, under greater tidal ranges, while wave climate conditions experienced a progressive increasing; and welding to the beach forming a berm. Boundary conditions coupled to the significant wave height offshore were used to classify each phase of bar evolution: formation phase (1-1.5 m), evolution phase (lower than 2.5-3 m) and decay phase (> 3 m). These considerations were limited to beaches in the area that present well-developed longshore
dc.publisherCoastal Education & Research Foundationpt
dc.relationCROP project - PDCTM/P/MAR/15265/1999pt
dc.subjectintertidal barspt
dc.subjectmorphological changespt
dc.subjecthydrodynamic boundary conditionspt
dc.titleShort-term morphodynamics of intertidal bars the case of Areão Beach (Aveiro, northwest Portugal)pt
degois.publication.titleJournal of Coastal Researchpt
degois.publication.volumeSpecial Issue 39pt
Appears in Collections:DGeo - Artigos

Files in This Item:
File Description SizeFormat 
Rey & Bernardes 2006.pdfDocumento principal207.74 kBAdobe PDFrestrictedAccess

Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.