Papers
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Development of a Bayesian network-based early warning system for storm-driven coastal erosion 
Coastal hazards such as flooding and erosion can cause large economic and human losses. Under this threat, early warning systems can be very cost-effective solutions for disaster preparation. The goal of this study was to develop, test, and implement an operational coastal erosion early warning system supported by a particular method of machine learning. Thus, the system combines Bayesian Networks, and state-of-the-art numerical models, such as XBeach and SWAN, to predict storm erosion impacts in urbanized areas. This system was developed in two phases. In the development phase, all information required to apply the machine learning method was generated including the definition of hundreds of oceanic synthetic storms, modeling of the erosion caused by these storms, and characterization of the impact levels according to a newly defined eerosion iimpact index. This adimensional index relates the distance from the edge of the dune/beach scarp to buildings and the height of that scarp. Finally, a Bayesian Network that acted as a surrogate of the previously generated information was built. After the training of the network, the conditional probability tables were created. These tables constituted the ground knowledge to make the predictions in the second phase. This methodology was validated (1) by comparing 6-h predictions obtained with the Bayesian Network and with process-based models, the latest considered as the benchmark, and (2) by assessing the predictive skills of the Bayesian Network through the unbiased iterative k-fold cross-validation procedure. Regarding the first comparison, the analysis considered the entire duration of three large storms whose return periods were 10, 16, and 25 years, and it was observed that the Bayesian Network correctly predicted between 64% and 72% of the impacts during the course of the storms, depending on the area analyzed. Importantly, this method was also able to identify when the hazardous conditions disappeared after predicting potential consequences. Regarding the Regarding the second validation approach, second validation approach, the k-fold cross-validation procedure was applied to the peak of a set of varying storms and it demonstrated that the predictive skills were maximized (63%
Year: 2024
Number Pages:
1-15pp.
Author(s): Garzon, J.L.; Ferreira, Ó.; PLOMARITIS, T.A.; Zózimo, A. C.; Fortes, C. J. E. M.; Pinheiro, L.
: Coastal Engineering
Editor: Elsevier
Volume:
Vol 189 (104460).
Keywords: HIDRALERTA; Sandy beaches; Bayesian networks; Numerical modeling; Prediction system
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Experimental study of an onshore dual chamber oscillating water column device
A wave flume is used to study a scaled model of a stepped bottom dual-chamber Oscillating Water Column (OWC) installed onshore. Compared to traditional single-chamber OWCs, the use of dual-chambers is expected to widen the range of sea states in which the OWC is more efficient, and the step, in front of the first chamber, boosts the capturing energy capacity of the device. The Power Take-Off (PTO) system is modelled as an air opening in the pneumatic chambers. Several experiments combining regular incident waves and PTO damping conditions are performed. Results of the amplitudes of the free surface elevations inside the chambers show that the device can amplify the incident wave amplitude up to 1.57 times in chamber 2. Results of the primary efficiency show that the device is highly dependent on the PTO damping characteristics and can reach around 40% for a wide range of wave periods. Results of the reflection analysis show that the reflection coefficient is also dependent on the PTO damping characteristics but remain lower than 0.6 for all the studied cases. Sloshing phenomenon (mostly in the cross-section direction) was observed for a wavelength close to the cross-section dimension, impacting negatively on the device pneumatic performance.
Year: 2024
Number Pages:
16p..
Author(s): Gadelho, J.; REZANEJAD, K.; Guedes Soares, C.; Santos, J. A.; Anastas, G.; Fortes, C. J. E. M.
: Ocean Engineering
Editor: Elsevier
Volume:
Volume 300 (117240).
Keywords: Reflection coefficients; Efficiency improvement; Breakwater; Experiments; Oscillating water column
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Numerical analysis of 3D hydrodynamics and performance of an array of oscillating water column wave energy converters integrated into a vertical breakwater
Performance and hydrodynamics of an array of Oscillating Water Column (OWC) Wave Energy Converter (WEC) integrated into a vertical breakwater is studied. The FLUENT® software, in which the numerical model is based on the Reynolds-Averaged Navier-Stokes equations and the Volume of Fluid method for free surface flow modeling, is used in a 3D numerical wave tank. Three vertical breakwater configurations subject to the action of incident regular waves with periods from 6 to 12 s are studied: normal breakwater, with vertical walls parallel to the direction along the breakwater length; and two novel breakwater geometries, partially and fully convergent breakwaters, whose converging vertical walls are inclined
Year: 2024
Number Pages:
20p..
Author(s): Didier, E.; Teixeira, P.
: Revista Renewable Energy
Editor: Elsevier
Volume:
Vol. 225 (120297).
Keywords: 3D RANS-VoF numerical wave tank; Efficiency; Vertical breakwater; Oscillating water column; Array of wave energy converters
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A RANS-based Numerical Model to Simulate Overtopping-type Wave Energy Converters Integrated into Breakwaters
This study aims to validate a numerical model based on Reynolds-averaged Navier
Year: 2023
Number Pages:
420
Author(s): Didier, E.; Teixeira, P.
: International Journal of Offshore and Polar Engineering
Editor: IJOPE
Volume:
Vol 33 Nº 4.
Keywords: Turbulence models; Numerical wave flume; RANS; Wave energy; Overtopping wave energy converter
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An Early Warning System for Coastal Risks Assessment
Storms impacting sandy coastal areas produce hazards such as erosion and overwash that, in turn, promote risk to life and property damage in occupied areas. Coastal damage and risks willincrease in the future not only in association with climate change but also due to the growinghuman occupation in coastal areas (van Dongeren et al., 2018). Since the threatened coastal areas are often densely populated, there is a need to implement measures to prevent risks. One of such measures is the use of Early Warning Systems (EWS) that anticipate expected risks and, therefore, work as management tools to minimize or avoid disaster. This work presents the basis of an EWS prototype to alert about the potential consequences of overwash/overtopping and erosion induced by storms, in coastal areas.
Year: 2023
Author(s): Ferreira, Ó.; Garzon, J.L.; Ferreira, A. M.; Zózimo, A. C.; Fortes, C. J. E. M.; Reis, M. T. L. G. V.
Editor: World Scientific
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Conceptual and quantitative categorization of wave
Beaches combined with sloping structures are frequently the frst element of defense to protect urban areas from the impact of extreme coastal fooding events. However, these structures are rarely designed for null wave overtopping discharges, accepting that waves can pass above the crest and threat exposed elements in hinterland areas, such as pedestrians, urban elements and buildings, and vehicles. To reduce risks, Early Warning Systems (EWSs) can be used to anticipate and minimize the impacts of fooding episodes on those elements. A key aspect of these systems is the defnition of non-admissible discharge levels that trigger signifcant impacts. However, large discrepancies in defning these discharge levels and the associated impacts are found among the existing methods to assess foodings. Due to the lack of standardization, a new conceptual and quantitative four-level (from no-impact to high-impact) categorization of food warnings (EW-Coast) is proposed. EW-Coast integrates and unifes previous methods and builds on them by incorporating feld-based information. Thus, the new categorization successfully predicted the impact level on 70%, 82%, and 85% of the overtopping episodes afecting pedestrians, urban elements and buildings, and vehicles, respectively. This demonstrates its suitability to support EWSs in areas vulnerable to wave-induced fooding.
Year: 2023
Author(s): Garzon, J.L.; Ferreira, O.; Reis, M. T. L. G. V.; Ferreira, A. M.; Fortes, C. J. E. M.; Zózimo, A. C.
: Scientific Reports
Editor: Communications Engineering
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Damage Evolution in Physical Scale Model Tests of a Stretch of the Breakwater of Peniche Harbour.
During physical scale model tests of rubble mound breakwaters, the assessment of the eroded volume of the armour layer subjected to incident sea waves can be determined from consecutive surveys of the surface of the armour layer after each test run. This enables one to assess the damage level of the struc ture by comparing erosion profiles and by the eroded volume between consecutive surveys of the tested section. The present study aimed to evaluate the damage evolu tion of a section of the Peniche harbour west breakwater, whose armour layer is made of tetrapods, A dimensionless damage parameter was computed, based on the eroded volume at the end of each test. The test program consisted of three test series (A, B and C) with different durations and wave conditions sequences, considering the low-water level (water depth of 0.20 m at the toe of the structure) and high-water level (0.24 m) and sea states with peak periods Tp = 1.70 s and Tp = 1.98 s and significant wave heights, Hm0, ranging between 0.12 m and 0.19 m. The model was built and operated according to Froude
Year: 2023
Author(s): Lemos, R.; Fortes, C. J. E. M.; Santos, J. A.; Mendonça, A. C.
Editor: Rilem
Keywords: 3D surface model; Position sensor; Damage evolution; Breakwater
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Damage Evolution Prediction during 2D Scale-Model Tests of a Rubble-Mound Breakwater: A Case Study of Ericeira
Melby presents a formula to predict damage evolution in rubble-mound breakwaterswhose armour layer is made of rock, based on the erosion measured in scale-model tests and thecharacteristics of the incident sea waves in such tests. However, this formula is only valid for armourlayers made of rock and for the range of tested sea states. The present work aims to show howthe Melby methodology can be used to establish a similar formula for the armour layer damageevolution in a rubble-mound breakwater where tetrapods are employed. For that, a long-durationtest series is conducted with a 1:50 scale model of the quay section of the Ericeira Harbour breakwater.The eroded volume of the armour layer was measured using a Kinect position sensor. The damageparameter values measured in the experiments are lower than those predicted by the formulationfor rock armour layers. New ap and b coefficients for the Melby formula for the tested armour layerwere established based on the minimum root mean square error between the measured and thepredicted damage. This work shows also that it is possible to assess the damage evolution in scale model tests with rubble-mound breakwaters by computing the eroded volume and subsequently, thedimensionless damage parameter based on the equivalent removed armour units.
Year: 2023
Author(s): Lemos, R.; Santos, J. A.; Fortes, C. J. E. M.
: Modelling
Editor: MDPI
Keywords: Position sensor; Damage evolution; Rubble-mound breakwater
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Determination of Wave Run-Up Through the TimesTack Methology and hrough a Resistive Wave Gauge. a Comparative Analysis
The objective of this work is the comparison of two methodologies used for run-up measurements in a two-dimensional physical model, which represented the protection breakwaters of the Peniche and Ericeira
Year: 2023
Author(s): Lemos, R.; Fontes, R.; Fortes, C. J. E. M.; Andriolo, U.; Rito, J.
Editor: Reterm
Keywords: Breakwater; Physical model; RimeStack; Video analysis; Run-up
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Development of a Bayesian networks-based early warning system for wave-induced flooding
Coastal flooding prediction systems can be an efficient risk-reduction instrument. The goal of this study was to design, build, test, and implement a wave-induced flooding early warning system in urban areas fronted by sandy beaches. The system utilizes a novel approach that combines Bayesian Networks and numerical models (SWAN + XBeach) and was developed in two phases. In the development phase, firstly, the learning information was generated including the creation of oceanic conditions, modeling overtopping discharges, the haracterization of the associated im pacts (no, low, moderate and high) in pedestrians, urban components and buildings, and vehicles, and secondly, the Bayesian Networks were designed that surrogated the previously generated information. After their training, the conditional probability tables were created representing the foundation to make predictions in the operational phase. This methodology was validated for several historical events which hit the study area (Praia de Faro, Portugal), and the system correctly predicted the impact level of around 80% of the cases. Also, the predictive skills varied depending on the level, with the no and high impact levels overcoming the intermediate levels. In terms of efficiency, one simulation (deterministic) of coastal flooding for 72 h by running SWAN + XBeach operationally would take more than two days on a one-logical processor workstation, while the current approach can provide quasi-instantaneously predictions for that period, including probability distributions. Moreover, the two-working phase approach is very flexible enabling the inclusion of additional features such as social components representing a powerful tool for risk reduction in coastal communities.
Year: 2023
Number Pages:
19p..
Author(s): Garzon, J.L.; Ferreira, Ó.; Zózimo, A. C.; Fortes, C. J. E. M.; Ferreira, A. M.; Pinheiro, L.; Reis, M. T. L. G. V.
: International Journal of Disaster Risk Reduction
Editor: Elsevier
Volume:
Volume 96.
Keywords: Wave overtopping; Sandy beaches; Bayesian network; XBeach; Prediction system
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Comunicação
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Monitoring the Madeira airport protection breakwater using visual and Unmanned Aerial Vehicle observations
An aerial monitoring system was developed for the maritime structures protecting the foundation columns of the airport infrastructure of the Madeira Island Airport, in the scope of research project MEGE, to complement the already existing monitoring program of visual observations. For the aerial monitoring of the berm breakwater, with about 770 m in length, a fast data acquisition system was envisaged. Imaging techniques acquired through a high-resolution camera coupled to an unmanned aerial vehicle (UAV) were used, which allowed for a very fast and efficient automated procedure, compatible with the difficult accessibility to the structure on the seaside. Point clouds corresponding to the breakwater geometry were obtained from the set of aerial images from the camera on board of the UAV, using photogrammetric techniques. In this paper, the two complementary parts of the monitoring of this structure are described and corresponding results are shown.
Year: 2022
Author(s): Capitão, R.; Neves, M. G.; Sousa, P.; Cachaço, A.; Barros, F.; Tavares, P.; Moreira, P.; Fortes, C. J. E. M.; Costa, D.; Franco, E.
Editor: TEST&E2022
Keywords: berm breakwater; UAV monitoring; visual monitoring
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Numerical and Physical Modeling of Ship Impacts on Fenders
This paper aims to evaluate the impact of ships on fenders during the berthing process. Physical tests and numerical simulations with MOORNAV tool were performed with versions of the GulfStream ship in still water and under a set of different conditions. A comparative analysis was made between outputs of the two models considering specific conditions. The MOORNAV application resulted in a standard deviation from the physical model of 3% to 6% in relation to the maximum force exerted on each fender.
Year: 2022
Author(s): Gomes, A.; Pinheiro, L.; Simão, J.; Costa, C.E.B.C.; Fortes, C. J. E. M.; Santos, J. A.
Editor: E. Rizzuto and V. Ruggiero
Keywords: Fenders; MOORNAV.; Physical Modelling; Numerical Modelling; GulfStream Ship
Info
Numerical and Physical Modeling of Ship Impacts on Fenders
This paper aims to evaluate the impact of ships on fenders during the berthing process. Physical tests and numerical simulations with MOORNAV tool were performed with versions of the GulfStream ship in still water and under a set of different conditions. A comparative analysis was made between outputs of the two models considering specific conditions. The MOORNAV application resulted in a standard deviation from the physical model of 3% to 6% in relation to the maximum force exerted on each fender.
Year: 2022
Author(s): Gomes, A.; Pinheiro, L.; Simão, J.; Costa , C.; Fortes, C. J. E. M.; Santos, J. A.
Editor: E. Rizzuto and V. Ruggiero
Keywords: MOORNAV; Physical Modelling; Numerical Modelling; GulfStream Ship; Fenders
Info
OSOM+: Aplicação às estruturas marítimo-portuárias do porto de Sines
Neste trabalho, descreve-se a aplicação do programa OSOM+ às obras marítimas do Porto de Sines, em especial ao quebra-mar oeste. Assim, serão apresentados resultados de comparação entre as situações observadas em 2018 e 2020 no âmbito de inspeções visuais e com drone, mediante apreciação e análise de fotografias georreferenciadas, ortomosaicos, nuvens de pontos, modelos numéricos de superfície e perfis selecionados. É também ilustrada a forma como a aplicação e base de dados ANOSOM-WEB pode ser empregue quer durante as campanhas de observação, quer em gabinete. Conclui-se este trabalho com a apresentação das vantagens da recente atualização da metodologia e do que se julga ser a sua importância na tomada de decisões sobre a necessidade ou não de realizar obras de manutenção e/ou reparação nestas estruturas, ou similares.
Year: 2022
Number Pages:
12p.
Author(s): Capitão, R.; Fortes, C. J. E. M.; Lemos, R.; Silva, L. G.; Neves, M. G.; Henriques, M. J.; Martins, T.
Editor: PIANC
Keywords: Levantamento aéreo; Inspeção visual; Obras marítimas
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Perceção de risco costeiro na Costa da Caparica: Aplicação da metodologia AHP a um grupo de stakeholders locais
Os mapas de risco costeiro, integrados em modelos de risco, são excelentes ferramentas de apoio à tomada de decisão no âmbito da gestão e proteção costeira em situações normais e de emergência [1], ajudando aproteger as populações e infraestruturas em risco de inundação costeira e galgamento oceânico proteger as populações e infraestruturas em risco de inundação costeira e galgamento oceânico.
Year: 2022
Author(s): Santos, C.; Ferreira, J.; Craveiro, J.; Santos, I.; Duarte, C.M.; Libreiro, F.; Zózimo, A. C.; Fortes, C. J. E. M.; Rodrigues, L
Info
Safety System for Ships in Harbours
SAFEPORT safety system aims at forecasting and alerting, on a regular basis, emergency situations regarding ships operation in port areas caused by extreme weather-oceanographic conditions. It uses forecasts provided offshore of the area under study of sea agitation, wind and tide. The characterization of the response of the free and moored ships at a berth is performed using the numerical package SWAMS. The system issue alerts, through danger levels associated with risk levels of exceedance of recommended values for movements and forces imposed on ship mooring systems. SAFEPORT can be adapted to any port. So far, it has been developed and adapted to three terminals of the port of Sines, where three different ships were simulated. This paper presents the developments made to date of the safety system, which includes tests performed in storm situations. The numerical models run every day, in real-time mode, in a computer cluster and the system provide forecast results for the next 72 hours. The results are disseminated on a web page and a mobile application in a variety of formats. It was concluded that the SAFEPORT safety system issued alerts according to the observed reality during the storm Dora. It has also been shown to be a computer tool for the optimization of ship mooring systems. The system is currently in testing and validation phase therefore, forecasts should be interpreted as indicative.
Year: 2022
Author(s): Pinheiro, L.; Gomes, A.; Fortes, C. J. E. M.; Santos, J. A.
Editor: E. Rizzuto and V. Ruggiero
Keywords: Risk assessment; storm Dora; Moored ships; Moored ships; Wave propagation; SWAMS; SAFEPORT
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Sistema de alerta para riscos portuários. Análise de eventos extremos nos portos dos Açores
A autoridade portuária do arquipélago dos Açores, Portos dos Açores, SA, identificou a necessidade de dispor de um sistema de alerta precoce para os riscos associados à agitação marítima, nomeadamente os relacionados com os galgamentos costeiros e com os navios amarrados. No âmbito do Projeto ECOMARPORT, associaram-se com a Universidade dos Açores e o LNEC para o desenvolvimento de três novos protótipos do sistema HIDRALERTApara os portos de S. Roque do Pico, Madalena do Pico e Praia da Vitória. Os novos protótipos têm, para além da previsão de eventos de galgamento das proteções portuárias, a capacidade de prever esforços e movimentos de navios amarrados. As situações de emergência podem ser previstas, permitindo que as autoridades portuárias possam tomar medidas de mitigação para evitar a perda de vidas e minimizar os danos.
Year: 2022
Author(s): Pinheiro, L.; Zózimo, A. C.; SANTOS, M.I.; Fortes, C. J. E. M.; Reis, M. T. L. G. V.; Azevedo, E. B.
Editor: PIANC
Keywords: Portos dos Açores; Análise de eventos extremos
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The Hidralerta System: Peniche, Quarteira and Faro applications
Early warning systems (EWS) are fundamental tool to reduce risks in coastal areas since they provide in advance the necessary information for the responsible authorities to mitigate the effects of possible emergency situation due to storms.
Year: 2022
Author(s): Fortes, C. J. E. M.; Zózimo, A. C.; Manz, A.; Pinheiro, L.; Reis, M. T. L. G. V.; Hervas, J.; Ferreira, Ó.
Editor: 16th International Conference Littoral22
Info
To-SEAlert project. Main developments and results
The case studies are Costa da Caparica coastal area and Ericeira port, both on the West Portuguese Coast.
Year: 2022
Author(s): Zózimo, A. C.; Fortes, C. J. E. M.; Santos, J. A.; Pinheiro, L.; Lemos, R.; Capitão, R.; Fonseca, A. M.; Roque, D.; Taborda, R.; Silva, A. N.; Serrazina, V.; Craveiro, J.; Reis, M. T. L. G. V.; Andrio
Editor: 16th International Conference Littoral22
Info
To-SEAlert project. Wave overtopping and flooding in coastal and port areas: Tools for an early warning, emergency planning and risk management system
The To-SEAlert project (Fortes et al. 2019) aims to include a set of tools/methodologies into the Early Warning Systems (EWS) HIDRALERTA, (Poseiro, 2019, Fortes et al., 2021, Santos et al., 2020, Zózimo et al., 2021, Ferreira, et al. 2021a) to make it more efficient reliable and robust.
Year: 2022
Author(s): Fortes, C. J. E. M.; Zózimo, A. C.; Santos, J. A.; Pinheiro, L.; Lemos, R.; Capitão, R.; Reis, M. T. L. G. V.; Fonseca, A. M.; Roque, D.; Serrazina, V.; Barateiro, J.; Craveiro, J.; Andriolo, U.; Tabo
Editor: 16th International Conference Littoral22
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Capítulo de Livro
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Multi-functional artificial reefs for coastal protection
N/A
Year: 2009
Number Pages:
153-210 pp.
Author(s): Voorde, M.; Antunes do Carmo, J.; Neves, M. G.
Editor: Ch. A. Hudspeth, T. E. Reeve
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Tese de Doutoramento
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Trapped-mode propagation along irregular coasts
N/A
Year: 1999
Number Pages:
159 p.
Author(s): Santos, J. A.
Editor: ******
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Probabilistic Assessment of the Safety of Coastal Structures
N/A
Year: 1998
Number Pages:
594 p.
Author(s): Reis, M. T.
Editor: ******
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Unsteady Nearshore Currents on Longshore Varying Topographies
N/A
Year: 1998
Number Pages:
346 p.
Author(s): Sancho, F. E.
Editor: ******
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Simulação da agitação irregular. Técnicas matemáticas
N/A
Year: 1973
Author(s): Carvalho, M. M.
Editor: ******
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Relatório Científico
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PROCEDIMENTOS PARA ANÁLISE DE REGISTOS DA ELEVAÇÃO DA SUPERFÍCIE LIVRE EM ENSAIOS EXPERIMENTAIS - ANÁLISE ESPECTRAL
N/A
Year: 2013
Number Pages:
32p.
Author(s): Ramos, A.; Lemos, R.; Fortes, C. J. E. M.; Capitão, R.; Simão, J.; Passarinho, A.; Pinheiro, L.
Info
PROCEDIMENTOS PARA ANÁLISE DE REGISTOS DA ELEVAÇÃO DA SUPERFÍCIE LIVRE EM ENSAIOS EXPERIMENTAIS. ANÁLISE TEMPORAL
N/A
Year: 2013
Number Pages:
24p.
Author(s): Ramos, A.; Simão, J.; Passarinho, A.; Lemos, R.; Fortes, C. J. E. M.; Capitão, R.; Pinheiro, L.
Info
RADE
N/A
Year: 2013
Number Pages:
24p.
Author(s): Lemos, R.; Fortes, C. J. E. M.; Capitão, R.
Info
RADE
N/A
Year: 2013
Number Pages:
24p.
Author(s): Lemos, R.; Capitão, R.; Fortes, C. J. E. M.
Info
ADAPTAÇÕES PARA REFORÇAR A ESTABILIDADE DE EMISSÁRIOS SUBMARINOS EM TERRENOS LODOSOS
N/A
Year: 2012
Number Pages:
31p.
Author(s): Afonso, C.; Neves, M. G.; Reis, M. T.; Oliveira, J.
Info
RADE
N/A
Year: 2012
Number Pages:
35p.
Author(s): Lemos, R.; Capitão, R.; Fortes, C. J. E. M.
Info
Remote Access to Experimental Facilities. RADE
N/A
Year: 2012
Number Pages:
28p.
Author(s): Lemos, R.; Fortes, C. J. E. M.; Capitão, R.
Info
Sistema de previsão e alerta de inundações em zonas costeiras e portuárias
N/A
Year: 2012
Number Pages:
13p.
Author(s): Capitão, R.; Fortes, C. J. E. M.
Info
SISTEMA DE PREVISÃO E ALERTA DE INUNDAÇÕES EM ZONAS COSTEIRAS E PORTUÁRIAS
N/A
Year: 2012
Number Pages:
36p.
Author(s): Capitão, R.; Fortes, C. J. E. M.; Raposeiro, P.
Info
Detailed Modelling Studies For Colwyn Bay Coastal Defence Scheme Physical Model Tests of New Linear Defences
N/A
Year: 2010
Number Pages:
71p.
Author(s): Reis, M. T.; Neves, M. G.; Silva, L. G.; Hu, K.; Winfield, P.
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Outro
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Software do Núcleo de Portos e Estruturas Marítimas
N/A
Year: 2003
Author(s): NPE, Núcleo
Editor: ******
Info
River Information Services. PIANC s Technical Brief on vessel traffic and transport management in inland waterways and modern information systems
N/A
Year: 2002
Author(s): J.A Covas
Editor: ******
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Vessel Traffic and Transport Management in the Inland Waterways and Modern Information Systems
N/A
Year: 2002
Author(s): J.A Covas
Editor: ******
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MEDIRES - Ferramentas de Diagóstico e de Inspecção Robotizada de Estruturas Semi-Submersas
N/A
Year: 2001
Author(s): Santos, J. A.; Silvestre, C.
Editor: ******
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Observação Sistemática de Obras Marítimas. Súmula da actividade desenvolvida pelo LNEC
N/A
Year: 2001
Author(s): Silva, L. G.; Santos, J. A.; Neves, M. G.; Damião, A. D.
Editor: ******
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Protecção da Orla Costeira da Vila das Lajes do Pico. Relatório do Grupo de Trabalho para Definição e Análise de Soluções Alternativas
N/A
Year: 2001
Number Pages:
20 p.
Author(s): Oliveira, J. M. M.; Silva, L. G.; Azevedo, J. M.
Editor: ******
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Software do Núcleo de Portos e Praias
N/A
Year: 2001
Author(s): NPE, Núcleo
Editor: ******
Info
Solução Vectorizável e Parelelizável de Sistemas de Equações de Grande Dimensão Proposta para passagem à 2ª fase do projecto, financiado pela FCT, no âmbito dos Programas Operacionais Ciência, Tecnol
N/A
Year: 2001
Author(s): Fernandes, J. L. M.; Covas, J. A.; Fortes, C. J. E. M.
Editor: ******
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Transformações Não Lineares de Ondas Marítimas em Zonas Costeiras (2ª Fase). Proposta para passagem à 2ª fase do projecto, financiado pela FCT, no âmbito dos Programas Operacionais Ciência, Tecnologi
N/A
Year: 2001
Author(s): Covas, J. A.; Fortes, C. J. E. M.; Fernandes, J. L. M.; Oliveira, F. S. B. F.
Editor: ******
Info
Wave effects on Ships Moored at Figueira da Foz Harbour
N/A
Year: 2001
Author(s): Santos, J. A.; Neves, M. G.; Fortes, C. J. E. M.
Editor: ******
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Hydraulics and Environment Department
