Beach and cliff retreat induced by storm groups at Forte Novo,Algarve (Portugal)

M. Nunes, O. Ferreira, C. Loureiro, Brian Baily

Research output: Contribution to journalArticlepeer-review

179 Downloads (Pure)


Littoral cell dynamics may change through time as a reaction to modifications of the coastal system. Along the Vilamoura-Quarteira coastline, the construction of a groin field limited the sediment supply to the already narrow Forte Novo beach, located downdrift, enhanced wave action on the cliff base and lead to long-term persistent cliff retreat. This research uses a set of surveys from November 2009 to March 2010 to determine short-term soft cliff erosion associated to storm groups at this sediment starved area. Following the initial LiDAR survey, three subsequent surveys were performed using a reflectorless total station for monitoring the cliff face, and RTK-DGPS to monitor the position of the cliff top, the cliff foot and the topography of the adjacent beach. Results indicate an important reduction in beach levels during successive storms (without significant beach recovery in between), allowing waves to further attack the cliff base and contributing to further enhance the structural and permanent cliff retreat. This work demonstrates how a combination of magnitude and frequency of extreme events coupled with development of the coastline, has led to increased cliff-beach recession and to the permanent dislocation of the cliff face.
Original languageEnglish
Pages (from-to)795-799
Number of pages5
JournalJournal of Coastal Research
Issue numberSI 64
Publication statusPublished - 2011


Dive into the research topics of 'Beach and cliff retreat induced by storm groups at Forte Novo,Algarve (Portugal)'. Together they form a unique fingerprint.

Cite this