Hazard assessment in rock cliffs at Central Algarve (Portugal): A tool for coastal management

Mara Nunes, Oscar Ferreira, Martin Schaefer, Julian Clifton, Delminda Moura, Carlos Loureiro

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43 Citations (Scopus)
157 Downloads (Pure)


Coastal hazards are in the interface of human activities with natural coastal processes. The conflicts arising from this relationship require new approaches suitable for coastal management that consider the dynamic of coastal areas. A method to assess hazard in rock cliffs is presented, combining cliff evolution forcing mechanisms along with protection factors, according to a weighted factors system. This method provides a rapid evaluation of vulnerability for cliffed areas, supporting coastal management and hazard mitigation. The method was applied to the rocky cliffs of the densely populated coastal zone between Galé and Olhos de Água (Southern Portugal), where high and very high hazard values were found to be dominant. A method validation was made using the vulnerability areas and the recorded mass movements over a 45 year period in the same area.
Original languageEnglish
Pages (from-to)506-515
JournalOcean and Coastal Management
Issue number10
Early online date7 Aug 2009
Publication statusPublished (in print/issue) - 1 Oct 2009


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