Building the future by doing more together

EROS: Erosion of Rocky Shores - differences in protection promoted by sandy beaches and shore platforms
Coordinator - Delminda Moura
CESAM Responsible researcher - Paulo A. Silva
Programme - PTDC/CTE-GIX/111230/2009
Execution dates - 2011-03-01 - 2014-03-01 (36 Months)
Funding Entity - FCT
Funding for CESAM - 33120 €
Total Funding - 150000 €
Proponent Institution - Universidade Algarve
Participating Institutions
Universidade de Aveiro

The coastal zone of the centre Algarve between Galé and Olhos de Água (Fig. 1, Annex A) is a carbonate rocky coast undergoing dramatic recession. This area possesses shore platforms with adjacent sandy beaches, thus offering suitable conditions as a case study in the present project. Which feature (shore platform or sandy beach) is more efficient on cliffs' protection? What is the threshold of both shore platform and sandy beaches' slope and width to maintain the dynamic equilibrium on cliffed coasts? These are main questions/objectives to what this research project intent to find answers. To do that, a multidisciplinary work group composed by geophysicists and civil engineers expertises in numerical and physical modelling and geologists expertises in coastal geomorphology will put together their synergies as well as the respective research centres' facilities. Field data will be acquired using technologies that have previously been used and tested by the research members, (e.g. the Differential Global Position System, the Side Scan, Electromagnetic Current Meter and the Acoustic Doppler Current Profiler). Although the obtained data can provide very insight in the hydro and morphodynamic of the study area, it is associated to a limited wave conditions (presented during the surveys) and with specific locations (where the measurements were performed). The only way to determine coastal responses to a more wide range of climate waves (including extreme events) and substrate conditions is to use mainly numerical models or, in certain cases, physical ones. However, some problems arise from numerical and physical models. So, a combined methodology using numerical/physical and field data will be used. Physical and field data will provide the results to calibrate the numerical models (in our case SWAN and COULWAVE models), which will be then applied to several different wave and seabed conditions. One of the expected outputs of this project is to contribute to coastal assessment based on the scientific knowledge about the morphodynamic behaviour of shore platforms and sandy beaches on cliffs protection, throughout the field, numerical and physical data integration.

Members on this project

Paulo A. Silva

CESAM Funding: