DHA/NEC - Comunicações a congressos e artigos de revista: Recent submissions

  • Characterisation of the alongshore dynamics of an estuarine beach 
    Oliveira, F. S. B. F.; Vargas, C. I. C.; Coli, A. B. (Thalassas, 2009)
    The hydrodynamics and alongshore sediment dynamics were evaluated on a meso-tidal estuarine beach, submitted to wind and vessel waves generated in an area of restricted fetch, not affected by oceanic waves. The beach ...
  • Modelação física da evolução do perfil de praia a diferentes escalas 
    Sancho, F. E.; Freire, P.; Oliveira, F. S. B. F. (2009)
    Neste trabalho apresentam-se os principais resultados da evolução morfológica do perfil de praia, a duas escalas em modelo reduzido, com enfoque para as condições de agitação marítima do tipo erosivo. Discutem-se as analogias ...
  • Beach nourishment at Coollangatta Bay (Australia) over the period 1987-2005: impacts and lessons 
    Castelle, B.; Turner, I.; Bertin, X.; Tomlinson, R. (Coastal Engineering, 2009)
    Erosion of the southern Gold Coast beaches (SE Queensland, Australia) was exacerbated after the extension of the Tweed River training walls in the early 1960s. To achieve the objective of restoring and maintaining beach ...
  • Intercomparison of sediment transport formulas in current and combined wave-current conditions 
    Silva, P. A.; Bertin, X.; Fortunato, A. B.; Oliveira, A. (Journal of Coastal Research, 2009)
    The 2D horizontal morphodynamic modeling system MORSYS2D simulates bottom topography evolution in coastal zones. Sand fluxes are computed with different practical formulas, either for current dominated (e.g, Ackers & White, ...
  • Numerical modeling of the impact of the Ancão Inlet relocation (Ria Formosa, Portugal) 
    Dias, J. M.; Sousa, M. C.; Bertin, X.; Fortunato, A. B.; Oliveira, A. (Environmental Modelling & Software, 2009)
    This work describes the application of hydrodynamic (ELCIRC) and transport (VELA and VELApart) models to the Ria Formosa lagoon (Portugal) to study the impact of the relocation of the Ancão Inlet. Located in the south of ...
  • Beach nourishments at Coolangatta Bay over the period 1987–2005: Impacts and lessons 
    Castelle, B.; Turner, I.; Bertin, X.; Tomlinson, R. (Coastal Engineering, 2009)
    Erosion of the southern Gold Coast beaches (SE Queensland, Australia) was exacerbated after the extension of the Tweed River training walls in the early 1960s. To achieve the objective of restoring and maintaining beach ...
  • Morphodynamic modeling of the Ancão Inlet, South Portugal 
    Bertin, X.; Fortunato, A. B.; Oliveira, A. (Journal of Coastal Research, 2009)
    Morphodynamic modeling systems increasingly appear as valuable tools to understand the dynamics of coastal systems, including mixed-energy tidal inlets, driven by the combined action of tides and waves. This study aims at: ...
  • Sensitivity analysis of an ecological model applied to the Ria de Aveiro 
    Rodrigues, M.; Oliveira, A.; Costa, M.; Fortunato, A. B.; Zhang, Y. (Journal of Coastal Research, 2009)
    Ecological models can be useful tools for understanding the dynamics of the estuarine and coastal ecosystems. However, the application of these models in real systems requires the specification of many empirical input ...
  • Three-dimensional modeling of the lower trophic levels in the Ria de Aveiro (Portugal) 
    Rodrigues, M.; Oliveira, A.; Queiroga, H.; Fortunato, A. B.; Zhang, Y. J. (Ecological Modelling, 2009-02-06)
    Thewater and the ecosystem dynamics of the Ria de Aveiro, a shallow, multi-branch lagoon located on the northwest coast of Portugal, are simulated using a newfully coupled 3Dmodeling system. This model couples the hydrodynamic ...
  • A modeling-based analysis of processes driving wave-dominated inlets. 
    Bertin, X.; Fortunato, A. B.; Oliveira, A. (Continental Shelf Research, 2009)
    Among the different types of tidal inlets, wave-dominated inlets have been subjected to few quantitative studies, so that the physical processes controlling their dynamics are not fully understood. This study presents the ...
  • Morphodynamics of Fetch-Limited Beaches in Contrasting Environments 
    Freire, P.; Ferreira, Ó.; Taborda, R.; Oliveira, F. S. B. F.; Carrasco, A. R.; Silva, A.; Vargas, C. I. C.; Capitão, R.; Fortes, C. J. E. M.; Coli, A. B.; Santos, J. A. (2009)
    Sandy beaches can be found in fetch-limited environments that are protected from ocean generated waves, as estuaries, lagoons, and backbarriers, and where fetch characteristics allow local wind-generated waves to develop ...
  • Morphological Changes in a Low-energy Backbarrier 
    Carrasco, A. R.; Ferreira, Ó.; Freire, P.; Dias, J. A. (2009)
    Profile characteristics of low energy sandy beaches include narrow foreshores that are often steep, with reflective swash zones. Seaward of the foreshore a low gradient terrace is generally present, acting as a wave energy ...
  • DTM extraction using video-monitoring techniques: application to a fetch limited beach 
    Silva, A. N.; Taborda, R.; Catalão, J.; Freire, P. (2009)
    In this work, a video-monitoring system applicable to the study of beach morphodynamics was developed and applied to the DTM extraction of the intertidal zone of a fetch limited beach (Alfeite, Portugal). This low-cost ...
  • Origin and evolution of Tagus estuarine beaches 
    Taborda, R.; Freire, P.; Silva, A.; Andrade, C.; Freitas, M. C. (2009)
    Estuaries are unique systems with an unquestionable economical, ecological and recreational value which has motivated a large amount of research work. Out of the research focus emerge the estuarine margins and more ...
  • Integration of physical and water quality models 
    Oliveira, A.; Fortunato, A. B.; Rodrigues, M.; Azevedo, A. (2007)
    Cet article présente l’approche générale suivie au LNEC pour étudier des problèmes d’estuaires et de zones côtières, du point de vue de leur hydrodynamique, de leur morphodynamique et de la qualité des eaux. Le cadre ...
  • Effect of flooding the salt pans in the Ria de Aveiro 
    Picado, A.; Dias, J. M.; Fortunato, A. B. (2009)
    The Ria de Aveiro, a mesotidal lagoon located on the Northwestern Portuguese coast, is characterized by large areas of intertidal flats and a web of narrow channels. The lagoon has a large area of mostly abandoned salt ...
  • Space and time variability of uncertainty in morphodynamic simulations 
    Fortunato, A. B.; Bertin, X.; Oliveira, A. (2009-08-08)
    The uncertainty associated with simulations of process-based coastal area morphodynamic models is assessed through numerical experimentation. Appropriate metrics of uncertainty are defined based on the standard deviation ...
  • The effect of sediment characteristics in littoral transport evaluation 
    Freire, P.; Fortunato, A. B.; Oliveira, M.Alexandra; Andrade, C. (Dohmen-Janssen & Hulscher (eds), 2007)
    Numerical models are commonly used in coastal engineering studies to evaluate sediment transport along the coastline and to predict beach morphological evolution. Their application requires the knowledge of physical ...
  • A case study of wave climate changes due to nearshore morphological evolution 
    Oliveira, F. S. B. F. (2008)
  • Análise da vulnerabilidade de uma praia estuarina à inundação 
    Vargas, C. I. C.; Oliveira, F. S. B. F.; Oliveira, A.; Charneca, N. (2008)
    A ocorrência de condições hidrodinâmicas extremas em zonas ribeirinhas de estuários e lagunas, ambientes privilegiados para a ocupação humana, pode conduzir a avultados prejuízos materiais e humanos. Revela-se prioritário ...

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