Exploració per autor "Ribas Prats, Francesca"
Ara es mostren els items 1-20 de 87
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A mechanism for sandbar straightening by oblique wave incidence
Garnier, Roland; Falqués Serra, Albert; Calvete Manrique, Daniel; Thiebot, Jerome; Ribas Prats, Francesca (2013-06-06)
Article
Accés obertBreaker bars in the surf zone of sandy beaches generally evolve between straight bars parallel to the shore and meandering crescentic bars associated with intense (dangerous) currents flowing seaward through rip channels. ... -
A new morphodynamic instability associated with cross-shore transport in the nearshore
Falqués Serra, Albert; Ribas Prats, Francesca; Mujal Colilles, Anna; Puig i Polo, Càrol (2021-07-16)
Article
Accés obertThe existing theory for shore-transverse rhythmic sand bars relies on morphodynamic instabilities involving the wave-driven longshore current and rip currents. Intriguingly, transverse finger bars are common on coasts with ... -
A review and test of shoreline extraction techniques
Angelini, Riccardo; Angelats Company, Eduard; Luzi, Guido; Ribas Prats, Francesca; Masiero, Andrea; Mugnai, Francesco (2023-05-25)
Article
Accés obertShoreline represents the boundary between land and sea, and its accurate extraction is of utmost importance because of the economic and ecological value of coastal areas. Nowadays, satellite remote sensing is widely used ... -
Assessing the suitability of video imaging for studying the Dynamics of nearshore sandbars in tideless beaches
Ribas Prats, Francesca; Ojeda Casillas, Elena; Price, Timothy D.; Guillén Aranda, Jorge (Institute of Electrical and Electronics Engineers (IEEE), 2010)
Article
Accés restringit per política de l'editorialNearshore sandbars, an important natural defense mechanism of the beaches, can be monitored using shore-based video systems. Before studying bar dynamics with video images, we must establish the relationship between the ... -
Automatic shoreline detection by processing planview timex images using bi-LSTM Networks
Marti-Puig, Pere; Serra-Serra, Moises; Ribas Prats, Francesca; Simarro Grande, Gonzalo; Caballería Suriñach, Miquel (2024-04)
Article
Accés obertA new automatic shoreline detection method by using a bidirectional Long Short-Term Memory (bi-LSTM) Network that processes images column by column is presented. The model is trained on manually extracted shorelines from ... -
Automatic shoreline detection from video images by combining information from different methods
Ribas Prats, Francesca; Simarro, Gonzalo; Arriaga García, Jaime; Luque Lozano, Pau (Multidisciplinary Digital Publishing Institute (MDPI), 2020-11-02)
Article
Accés obertProperly registering the time evolution of the shoreline—the coastal land-water interface—is a crucial issue in coastal management, among other disciplines. Video stations have shown to be powerful low-cost tools for ... -
Avaluació del professor/investigador. Període 01/09/2007 al 31/12/2008
Ribas Prats, Francesca (Universitat Politècnica de Catalunya, 2007-02)
Working paper
Accés obert -
Cambios morfológicos de barras sumergidas en playas artificiales
Ojeda, Elena; Guillén, Jorge; Ribas Prats, Francesca (2007-04)
Text en actes de congrés
Accés obertSe analizan los cambios morfológicos que experimentan las barras sumergidas de dos playas artificiales de la ciudad de Barcelona durante un período de tres años. La posición media de las barras indica que presentan ... -
Cambios morfológicos en barras sumergidas de playas artificiales
Ojeda, Elena; Guillén, Jorge; Ribas Prats, Francesca (Edicions UIB (Universitat de les Illes Balears), 2008-10)
Article
Accés obertSe analizan los cambios morfológicos que experimentan las barras sumergidas de dos playas artificiales de la ciudad de Barcelona durante un período de tres años. Los desplazamientos de las barras alcanzaron más de 50 m, ... -
Characteristics and dynamics of crescentic bar events at Castelldefels beach
Swart, Rinse Leendert de; Ribas Prats, Francesca; Simarro, Gonzalo; Guillén Aranda, Jorge (Consejo Superior de Investigaciones Científicas (CSIC), 2019)
Text en actes de congrés
Accés obertCrescentic sand bars have been studied intensively in the last decades, resulting in good knowledge of some of their characteristics, but the processes behind their formation and destruction are not yet clear. This study ... -
Characteristics and dynamics of crescentic bar events in an open, tideless beach
Swart, Rinse Leendert de; Ribas Prats, Francesca; Ruessink, Gerben; Simarro, Gonzalo; Guillén Aranda, Jorge (2017)
Text en actes de congrés
Accés obertCrescentic bar events at Castelldefels beach (NW Mediterranean) have been characterised using a 4.25 years dataset (October 2010-December 2014) of time-exposure video images. Crescentic bars are observed during 41% of ... -
Characteristics and dynamics of surfzone transverse finger bars
Ribas Prats, Francesca; Kroon, A. (American Geophysical Union (AGU), 2007-09)
Article
Accés obertPatches of transverse finger bars have been identified in the surf zone of Noordwijk beach (Netherlands). They consisted of three to nine elongated accumulations of sand attached to the low-tide shoreline. The bars ... -
Climate change impact on beaches
Ribas Prats, Francesca; Calvete, Daniel; Falqués Serra, Albert (2022-10-19)
Comunicació de congrés
Accés obertEn aquest Research Café es presenten projectes on la tecnologia es posa al servei dels mars i els oceans, i que estan lligats amb els objectius ODS Vida Submarina i Acció pel clima. -
Comparison of modelled nearshore transverse sandbars with field observations
Ribas Prats, Francesca; Calvete Manrique, Daniel; Falqués Serra, Albert (2010)
Text en actes de congrés
Accés obert -
¿Cómo afectará el cambio climático a las playas de arena?
Ribas Prats, Francesca (2022-10-26)
Article
Accés obertAunque ya sabemos que la subida del nivel del mar hará retroceder la línea de costa de las playas de arena, necesitamos modelos matemáticos para cuantificarlo y poder validar potenciales medidas de mitigación. Los avances ... -
Dynamics of single-barred embayed beaches
Ojeda Casillas, Elena; Guillén Aranda, Jorge; Ribas Prats, Francesca (2011-02-15)
Article
Accés obertThe dynamics of single submerged sandbars of two artificial embayed beaches (La Barceloneta and Bogatell, Barcelona, NW Mediterranean) has been studied with a video-recorded data set of 4.3 years. The alongshore-averaged ... -
Dynamics of the rhythmic morphology on the low-energy Trabucador beach (Ebro delta)
Mujal Colilles, Anna; Grifoll Colls, Manel; Ribas Prats, Francesca; Falqués Serra, Albert (Consejo Superior de Investigaciones Científicas (CSIC), 2019)
Text en actes de congrés
Accés obertObservations of rhythmic morphology along the Trabucador beach are contrasted with two numerical models to unravel the mechanisms of their formation. The Trabucador is a long narrow barrier at the SW side of the Ebro ... -
Effect of large angles of wave incidence on beach nourishments
Van den Berg, Niels; Falqués Serra, Albert; Ribas Prats, Francesca (2009)
Text en actes de congrés
Accés restringit per política de l'editorialThe aim of this study is to investigate the effect of instability on beach nourishments. The main objective is finding out how the nourishment of a particular beach must be designed to i) optimize its useful lifetime and ... -
Effect of surface rollers on the formation crescentic bars
Calvete Manrique, Daniel; Ribas Prats, Francesca; de Swart, Huib E.; Falqués Serra, Albert (2011)
Comunicació de congrés
Accés restringit per política de l'editorialThe effect of surface rollers on the formation of crescentic bars/rip channel systems is examined with a morphodynamic model. A linear stability analysis is applied to find the fastest growing bottom patterns that develop ... -
Effect of surface rollers on the formation of crescentic bars: large angles of incidence
Calvete Manrique, Daniel; Ribas Prats, Francesca; Swart, Huib E. de; Falqués Serra, Albert (2012)
Comunicació de congrés
Accés obertThe formation of crescentic bars is examined using a morphodynamic model based in linear stability analysis. The effect of surface rollers for off-normal wave conditions is examined. The effect of the rollers is to increase ...