A5081768639- Coastal and Marine Dynamics
- Aeolian processes and effects
- Coastal wetland ecosystem dynamics
- Ocean Waves and Remote Sensing
- Remote Sensing and LiDAR Applications
- Tropical and Extratropical Cyclones Research
- Coastal and Marine Management
- Underwater Acoustics Research
- GNSS positioning and interference
- Geological Modeling and Analysis
- Geological and Geophysical Studies Worldwide
- Flood Risk Assessment and Management
- Geological formations and processes
- Maritime Ports and Logistics
- Geophysics and Gravity Measurements
- Oceanographic and Atmospheric Processes
- earthquake and tectonic studies
- 3D Modeling in Geospatial Applications
- Isotope Analysis in Ecology
- Hydrology and Sediment Transport Processes
- Infrastructure Maintenance and Monitoring
- Marine Biology and Ecology Research
- Environmental Sustainability and Education
- Hydrocarbon exploration and reservoir analysis
- Soil erosion and sediment transport
University of Aveiro
2013-2024
Universidade do Porto
2004-2014
Centre for Astrophysics of the University of Porto
2011
Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde
2008
AVM Faculdade Integrada
2008
Portuguese Environment Agency
2008
High spatial resolution coastal Digital Elevation Models (DEMs) are crucial to assess vulnerability and hazards such as beach erosion, sedimentation, or inundation due storm surges sea level rise. This paper explores the possibility use high spatial-resolution Pleiades (pixel size = 0.7 m) stereoscopic satellite imagery retrieve a DEM on sandy coastline. A 40-km stretch in Southwest of France was selected pilot-site compare topographic measurements obtained from imagery, Real Time Kinematic...
The highly dynamic nature of some sandy shores with continuous morphological changes require the development efficient and accurate methodological strategies for coastal hazard assessment morphodynamic characterisation. During past decades, general approach establishment monitoring programmes was based on photogrammetry or classical geodetic techniques. With advent new techniques, space-based airborne-based, methodologies were introduced in programmes. This paper describes a prototype that...
Current coastal protection strategy in Portugal defines beach and shoreface nourishment as a valid measure to mitigate erosion some erosional hot-spots, being considered an adaptation under the present climate change scenario, including impacts of sea level rise. However, scant objective data on nourishments are available evaluate performance this type intervention mitigating managing coast risk. We first monitoring results ≈2.4 × 106 m3 Aveiro (Costa Nova—Ílhavo), largest until now...
In Aveiro (NW coast of Portugal), a coastal monitoring programme was carried out in sequence shoreface nourishment intervention (over than 2 M m3) performed 2020. this programme, almost one year biweekly subaerial topographies and quarterly bathymetric surveys have been collected along 10 km stretch between June 2020 2021. study, topographic were analysed to assess the expectation that if is located sufficiently shallow water depths, its landward movement will feed adjacent beaches and,...
Coastal areas, experiencing rapid urbanization and population growth, are among the most dynamically changing regions on Earth. These zones face increasing risks from storms rising sea levels, posing significant challenges for sustainable shoreline management. Traditional coastal monitoring, though accurate, is costly time-consuming, often covering limited areas or requiring substantial processing time, which impractical authorities needing quick, actionable insights. Technologies like DGPS,...
At coasts, sandy beach-dune systems act as natural barriers to environmental forcing, preventing coastal flooding and protecting communities. In the context of studies, it is fundamental identify sectors exposed wave impact support management suggest soft engineering interventions. This work examines morphodynamics Mira system on northern-central littoral Portugal over winter 2016-2017. Coupling topographic data with estimation runup total water level (TWL) timeseries, we proposed an...
Near estuaries and harbours, submerged shoals defence structures impact the exposure to overtopping. These features may be accounted for in two-dimensional horizontal (2DH) numerical models, either based on phase-resolving or phase-average solvers wave propagation. In between, surfbeat solvers, such as XBeach, combine an affordable computational cost with ability generate propagate longer infragravity (IG). However, surfzone characteristics overtopping modelled XBeach are sensitive settings...
The high energetic wave climate of the North Atlantic Ocean causes important morphological changes at Figueira da Foz coastal system (W Portugal), which is comprised sandy beaches and Mondego estuary-inlet. submerged sandbar inlet mouth highly dynamic inducing short waves shoaling breaking processes that can entail navigation problems towards local harbor. Therefore, dredging operations are performed to guarantee safe navigation. Nevertheless, these have a limited temporal effectiveness...
The shoreline change rate is one of the most significant parameters in analysing sandy shore behaviour with time. This parameter can be monitored by means low- and high-resolution survey methods, depending on objectives monitoring programme. Survey efficiency also very important for achieving high resolution both space Another aspect precision significance obtained results, not only from method itself but comparative analysis used to process data several surveys. processing algorithms are...
When waves propagate in coastal areas at depths lower than one half the wavelength, they exhibit a different signature sea surface and observed wavelength pattern enables inferring bathymetries. Commonly, spectral analysis using fast Fourier transform (FFT) is employed to derive wave direction of swell waves, nearshore regions. Nevertheless, it recognized that this method presents limitations, particularly regarding depth inversion limits do not allow obtaining bathymetric data close...
A wavelet-based method for bathymetry retrieval using a sequence of static images the surface wave field, as obtained from video imagery, is proposed. Synthetic water are generated numerical Boussinesq type model simulating propagation irregular waves. The spectral analysis used to retrieve both periods and wavelengths by evaluating peaks in time spatial domains, respectively. depths estimated linear dispersion relation results validated with model’s bathymetry. To verify proposed...
This work aims to shed some light on longshore sediment transport (LST) in the highly energetic northwest coast of Portugal. Data achieved through a sand-tracer experiment are compared with data obtained from original and new re-evaluated formulas (USACE Waterways Experiment Station’s Coastal Engineering Research Center, Kamphuis, Bayram bulk formulas) assess their performance. The field dyed sand was held at Ofir Beach during one tidal cycle under medium wave-energy conditions. Local...
On a cuspate sandy foreland, the cycle of beach erosion and recovery is driven by bi-directional approaches wave climates, which also determine its specific shape. This work describes seasonal morphodynamics Maspalomas natural foreland over period six years. area, located in south Gran Canaria Island, consists two beaches with different shoreline orientation, Beach El Inglés Beach, converging to La Bajeta Tip at head foreland. Shoreline variability three-dimensional changes were measured...