The understanding of the sedimentary links between the beach and the continental shelf is crucial for the evaluation of the coastal sediment budget. However, the comprehension of this dynamics is still poorly understood owing greatly to the lack of direct sediment transport measurement at seasonal and longer time scales. This work aims at evaluating sediment transport just seaward of the closure depth through a...
The understanding of the sedimentary links between the beach and the continental shelf is crucial for the evaluation of the coastal sediment budget. However, the comprehension of this dynamics is still poorly understood owing greatly to the lack of direct sediment transport measurement at seasonal and longer time scales. This work aims at evaluating sediment transport just seaward of the closure depth through a...
O areal da Praia Grande apresenta frequentemente uma areia escura que se associa à elevada concentração em minerais pesados. Neste trabalho pretende-se caracterizar este fenómeno e compreender as razões associadas a esta concentração. Para cumprir este objectivo foi analisado um conjunto de amostras de sedimento recolhidas na Praia Grande e em praias da mesma célula sedimentar (São Lourenço, Foz do Li...
This study is addressed to the evaluation of the suspended sediment concentration in a fetch limited beach (Alfeite Beach) using optical backscatter sensors (OBS) appraising, simultaneously, sensor response to the physical characteristics of suspended particles. In order to achieve these objectives two OBS sensors, deployed at the intertidal zone of Alfeite Beach, measured sediment concentration during a tidal ...