274 documents found, page 1 of 28
Development of a Bayesian network-based early warning system for storm-driven c...
L. Garzon, Juan; Ferreira, Óscar; Plomaritis, T. A.; Zózimo, A. C.; Fortes, C. J. E. M.; Pinheiro, L. V.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...
Development of a Bayesian networks-based early warning system for wave-induced ...
Garzon, Juan L.; Ferreira, Óscar; Zózimo, A. C.; Fortes, C. J. E. M.; Ferreira, A. M.; Pinheiro, L. V.; Reis, M. T.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 le...
Conceptual and quantitative categorization of wave-induced flooding impacts for...
Garzon, Juan L.; Ferreira, Ó.; Reis, M. T.; Ferreira, A.; Fortes, C. J. E. M.; Zózimo, A. C.Coastal fooding is a major threat to communities living in low-lying areas and the increase in the anthropogenic pressure in coastal zones and the efects of climate change (e.g., sea-level rise, increase in storminess and its frequency) are promoting an enhancement of the existing risks for population and properties 1–4 . Coastal fooding results from the interaction of oceanic and atmospheric processes with the...
Energy assessment of potential locations for OWC instalation at the Portuguese ...
Anastas, Gael; Santos, João Alfredo; Fortes, C. J. E. M.; Pinheiro, LilianaThis work aims to determine the exploitable wave energy resource at five potential sites close to harbour pro-tection facilities at the Portuguese coast, namely at the Azores archipelago, at Madeira Island and at Sines, on the coast of mainland Portugal. For that purpose, a third-generation wave model SWAN is used to transfer the offshore estimates of sea wave conditions to those points over the last 40 years. ...
Numerical analysis of waves attenuation by vegetation in enclosed waters
Mattosinho, G. O.; Maciel, G. F. [UNESP]; Vieira, A. S.; Fortes, C. J. E. M.; Soares, C. G.; Santos, T. A.Made available in DSpace on 2019-10-04T12:37:49Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-01-01; Numerical simulations using the SWAN-VEG model (Simulating WAves Nearshore, with vegetation module) were performed considering the case of Ilha Solteira (SP) reservoir, a navigable stretch of the Tiete-Parana waterway. The objective was to analyse the attenuation of wind-generated wave energy by the pre...
Application of the numerical model SWAN in locations with vegetation in the Tie...
Vieira, A. S. [UNESP]; Gregorio, I. C.; Fortes, C. J. E. M.; Suzuki, T.; Maciel, G. [UNESP]; Soares, C. G.; Santos, T. A.Made available in DSpace on 2018-11-26T15:30:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-01-01; This paper describes the application of SWAN-VEG to the lake of Ilha Solteiras's damSao Paulo, Brazil that is part of the Tiete-Parana waterway, in order to analyze the influence of vegetation on the reduction of energy of the waves near the lake margins. First the model is applied considering a constan...
An index-based method for coastal-flood risk assessment in low-lying areas (Cos...
Silva, S.; Martinho, M.; Capitão, R.; Reis, M. T. L. G. V.; Fortes, C. J. E. M.; Ferreira, J.The coastal area of Costa de Caparica is an important territory representing one of the main affected areas by storms such as Hercules in 2013 and 2014. This paper propose a new coastal risk assessment to coastal floods, combining GIS-based inundation analysis over the last 35 years, coastal vulnerability model based on geological and physical variables and, valuation of surface' elements exposed to storms cons...
O Porto de Ponta Delgada, S. Miguel, Açores: avaliação das consequências de gal...
Rodrigues, J.; Fortes, C. J. E. M.; Reis, M. T. L. G. V.; Poseiro, P.; Taveira-Pinto, F.No presente trabalho descreve-se a aplicação de uma metodologia para avaliação das consequências do galgamento no porto de Ponta Delgada, S. Miguel, Açores, recorrendo a uma análise multicritério (Processo de Análise Hierárquica, AHP) do impacto da ocorrência de galgamentos superiores aos limites admissíveis. Esta metodologia permite obter resultados baseados numa análise espacial dos indicadores que carateriza...
Run-up on a rubble mound breakwater: comparison of empirical formulae and physi...
Poseiro, P.; Reis, M. T. L. G. V.; Lemos, R.; Fortes, C. J. E. M.; Garcia, T.The present study focuses on the comparison of measured wave run-up values obtained in physical model tests with those predicted by different empirical formulae. Tests were carried out in a flume for a cross-section of a rubble mound breakwater with an armour layer of tetrapods and rock, and a recurved wave return wall. The model represents the cross-section of the south breakwater of Praia da Vitória harbour (...
Ship movements' analysis in a scale model
Simão, J.; Pinheiro, L.; Lesme, H.; Hinostroza , M.; Santos, J. A.; Fortes, C. J. E. M.A set of physical model tests was run in order to characterize the ship’s response to different wave conditions going from frequently-occurring conditions up to extreme ones. Several wave heights, periods and directions were generated. The waves around the ship were measured with probes and the movements of the ship were measured with a fiber-optic gyrocompass. Transfer functions are established and compared wi...