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On the Bound Wave Phase Lag

Thomas Guérin, Anouk de Bakker, Xavier Bertin
2019 Fluids  
role of IG waves in nearshore hydrodynamics, sediment transport, or even dune and barrier breaching is now well confirmed by field and laboratory experiments, as well as numerical modeling studies (see Bertin  ... 
doi:10.3390/fluids4030152 fatcat:qv42ldcpj5dbbfwhygkcvqt4hu

Segmentation of multiple series using a Lasso strategy [article]

Karine Bertin and Xavier Collilieux and Emilie Lebarbier and Cristian Meza
2014 arXiv   pre-print
Acknowledgements Karine Bertin is supported by the grant ANILLO ACT-1112, CONICYT-PIA, Chile and FONDECYT project 1141258.  ... 
arXiv:1406.6627v1 fatcat:7v2w5hxhkvanbhbxrziujk3z6q

Storm surges and coastal flooding: status and challenges

Xavier Bertin
2016 La houille blanche  
Modified from Bertin et al. (2015).  ...  <Bib_auteur> BERTIN X., LI K., ROLAND A., ZHANG Y.  ... 
doi:10.1051/lhb/2016020 fatcat:vhgbs6lt2jdobh7hv7rvlndfpy

A numerical scheme for coastal morphodynamic modelling on unstructured grids

Thomas Guerin, Xavier Bertin, Guillaume Dodet
2016 Ocean Modelling  
., 1993; Cayocca, 2001; Fortunato and Oliveira, 2004; Bertin et al., 2009; 10 Zhang et al., 2013) .  ...  evolution module of Dodet (2013) , which was adapted from the sediment transport and bed evolution module SAND2D Oliveira, 2004, 2007) , part of the 2DH morphodynamic mod-65 elling system MORSYS2D (Bertin  ... 
doi:10.1016/j.ocemod.2016.04.009 fatcat:hsllqwtkhnanlhpcl5v6rrdl3a

Relevance of infragravity waves in a wave-dominated inlet

Xavier Bertin, Maitane Olabarrieta
2016 Journal of Geophysical Research - Oceans  
Bertin, xbertin@univ-lr.fr Citation: Bertin, X., and M. Olabarrieta (2016) , Relevance of infragravity waves in a wave-dominated inlet,  ...  et al., 2011; Dodet et al., 2013; Arnaud and Bertin, 2014; Bertin et al., 2015] .  ...  ., 2004; Bertin et al., 2009; Olabarrieta et al., 2011; Dodet et al., 2013; Orescanin et al., 2014; Wargula et al., 2014; Olabarrieta et al., 2014; Chen et al., 2015] have emphasized the relevance of  ... 
doi:10.1002/2015jc011444 fatcat:ludcd7t765ajtnsnorweomis4q

Processes controlling the seasonal cycle of wave-dominated inlets

Xavier Bertin, André B. Fortunato, Guillaume Dodet
2015 Revista de Gestão Costeira Integrada  
Inlet migration and closure usually occur in micro-tidal, wave-dominated coastal environments with strong seasonal variations in river flow and wave climate. In the last decades, efforts have been undertaken to identify, classify and quantify these phenomena using conceptual models, empirical relationships and behavior-based models. However, to obtain further insight into the dominant physics requires the application of a process-based model. This study investigates the migration and closure of
more » ... an idealized tidal inlet system due to wave driven longshore sediment transport. The process-based morphodynamic modeling system Delft3D is applied for this purpose. The ratio of wave energy over tidal prism was changed systematically, through varying the tidal amplitude, tidal basin area and wave characteristics, to investigate the morphological response of the inlet (e.g. closure and migration). The results were compared with Bruun's empirical criteria for overall stability and with Escoffier stability concept. The results clearly indicate that a process-based model is able to reproduce a morphological inlet response consistent with Bruun's criteria and Escoffier's closure curve. A typical example of a migrating tidal inlet due to oblique waves is presented which includes features such as ebb channel formation, migration and welding to the downdrift barrier, and bypassing of ebb shoals. In other cases, inlet closure due to prolongation of the inlet channel and infilling with littoral-drift material is also reproduced. ADDITIONAL INDEX WORDS: inlet evolution, inlet stability, process-based model, Delft3D, sand bypass Figure 6. Series of geometrical cross-sections of the gorge in the 5 simulation scenarios plotting over time (every 80 days) Figure 5. (V m A c ) relationships of 5 scenarios compared to Escoffier's critical velocity (V cr = 1m/s)
doi:10.5894/rgci524 fatcat:bf67giq5sjfzbjbxwxab2hm56q

Determination of extreme sea levels along the Iberian Atlantic coast

André B. Fortunato, Kai Li, Xavier Bertin, Marta Rodrigues, Belén Martín Miguez
2016 Ocean Engineering  
doi:10.1016/j.oceaneng.2015.11.031 fatcat:66zzuxscjffctp7ijzwldpwkim

Monitoring the Topography of a Dynamic Tidal Inlet Using UAV Imagery

Nathalie Long, Bastien Millescamps, Benoît Guillot, Frédéric Pouget, Xavier Bertin
2016 Remote Sensing  
forced the simple Coastal Engineering Research Center (CERC) [32] longshore transport formula with wave parameters at breaking extracted from this hindcast and followed the methodology described in Bertin  ...  forced the simple Coastal Engineering Research Center (CERC) [32] longshore transport formula with wave parameters at breaking extracted from this hindcast and followed the methodology described in Bertin  ... 
doi:10.3390/rs8050387 fatcat:w7drkacyt5eopbysbkrkmkflom

Tide-induced flow signature in rip currents on a meso-macrotidal beach

Nicolas Bruneau, Xavier Bertin, Bruno Castelle, Philippe Bonneton
2014 Ocean Modelling  
Xavier Bertin was funded by Project ANR JC DYNAMO (agreement ANR-12-JS02-00008-01) and Bruno Castelle by Project BARBEC (ANR N2010 JCJC 602 01).  ... 
doi:10.1016/j.ocemod.2013.12.002 fatcat:ay6jz6abxjgxplhthipn52x4vu

Synchrotron radiation interaction with cryosorbed layers for astrochemical investigations [article]

Rémi Dupuy, Mathieu Bertin, Géraldine Féraud, Xavier Michaut, Thomas Putaud, Laurent Philippe, Pascal Jeseck, Roberto Cimino, Vincent Baglin, Claire Romanzin, Jean-Hugues Fillion
2018 arXiv   pre-print
Photon-stimulated desorption (PSD) is a process of interest for the two seemingly unrelated topics of accelerator vacuum dynamics and astrochemistry. Here we present an approach to studying PSD of interstellar ice analogs, i.e. condensed films of molecules of astrophysical interest at cryogenic temperatures, using synchrotron radiation. We present results obtained in the VUV range on various pure and layered ices, focusing on elucidating the desorption mechanisms, and results in the X-ray range for H_2O.
arXiv:1810.10392v1 fatcat:ldzwyy6xpvdrfj3loqavqqs2te

Beach nourishments at Coolangatta Bay over the period 1987–2005: Impacts and lessons

Bruno Castelle, Ian L. Turner, Xavier Bertin, Rodger Tomlinson
2009 Coastal Engineering  
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 amenity, significant nourishment works have been undertaken in Coolangatta Bay over the past 30 years. Particularly, under the Tweed River Entrance Sand Bypassing Project (TRESBP) since 1995, a number of nourishment campaigns and the implementation of a permanent sand bypass
more » ... em in 2001 have resulted in significant changes of Coolangatta Bay morphology. The present case study investigates the influence of both wave climate and nourishment works on the area extending from the updrift Snapper Rocks area to downdrift Kirra Beach. SWAN spectral wave model is implemented at Coolangatta Bay area and forced by the global wave model WW3 to estimate wave forcing and the potential natural longshore drift entering in Coolangatta. Specific transects extracted from accurate bathymetric surveys are used to investigate and quantify Coolangatta Bay sedimentation for the period 1987-2005. A network of Argus video stations provides high sample rate information on the shoreline evolution. Results show that, over the past 10 years, Coolangatta Bay has infilled rapidly. Sedimentation reached up to 6 m in some areas between 1995 and 2005, with beach width increasing by 200 m at Kirra Beach. Rapid seaward shoreline migration is consistent with the intense over-pumping of sand relative to the natural potential to move sand alongshore. The nourishment strategy used during this project has successfully delivered large amounts of sand to the southern Gold Coast embayment, although it has been up to now controversial from many community perspectives. The artificial sand bypassing process proved to be much more efficient than depositing the dredged sand in the nearshore area which requires a significant period of low energy condition in order for the deposited sediment to migrate shoreward and weld to the shore. This case study confirms that, when carefully undertaken, sand bypassing is a sustainable and flexible soft engineering approach which can work in concert with natural processes.
doi:10.1016/j.coastaleng.2009.05.005 fatcat:dvcbknpwczc2tazqwuseugzrou

Correction: Guérin, T., et al. On the Bound Wave Phase Lag. Fluids 2019, 4, 152

Thomas Guérin, Anouk de Bakker, Xavier Bertin
2020 Fluids  
In the published paper [...]
doi:10.3390/fluids5040210 fatcat:yv3siqbn2fdizfatbwpioz257e

Wave-current interactions in a wave-dominated tidal inlet

Guillaume Dodet, Xavier Bertin, Nicolas Bruneau, André B. Fortunato, Alphonse Nahon, Aron Roland
2013 Journal of Geophysical Research - Oceans  
Bertin, N. Bruneau, A. B. Fortunato, A. Nahon, and A. Roland (2013), Wave-current interactions in a wave-dominated tidal inlet,  ...  The model was forced at its ocean boundary by 16 tidal constituents whose amplitude and phase were computed with the regional model of Bertin et al. [2012] .  ...  However, inlet closures may occur under stormy winter conditions in other parts of the world [Winton and Mehta, 1981; Freitas and Andrade, 1994; Bertin et al., 2009; Nahon et al. 2012b ].  ... 
doi:10.1002/jgrc.20146 fatcat:yn43uslp6zbs3bmbxhccw6aziy

A probabilistic approach to estimating residential losses from different flood types

Dominik Paprotny, Heidi Kreibich, Oswaldo Morales-Nápoles, Dennis Wagenaar, Attilio Castellarin, Francesca Carisi, Xavier Bertin, Bruno Merz, Kai Schröter
2020 Natural Hazards  
Water depths were taken from Bertin et al. (2014) , who reanalysed the 2010 event using the 2D hydrodynamic model SELFE, fully coupled with the spectral wave model WWMII (Roland et al. 2012) .  ...  Buildings located within the observed flood extent (as shown in Bertin et al. 2014) were selected (9008 in total) and the floor space area of each house was obtained using the prediction model from  ... 
doi:10.1007/s11069-020-04413-x fatcat:2fxyirkzsrbmjgfssdszujxz2e

Photodesorption of acetonitrile CH3CN in UV-irradiated regions of the Interstellar Medium: an experimental evidence [article]

Romain Basalgète, Antonio Jesus Ocaña, Géraldine Féraud, Claire Romanzin, Laurent Philippe, Xavier Michaut, Jean-Hugues Fillion, Mathieu Bertin
2021 arXiv   pre-print
In the case of more complex molecules, such as CH 3 OH, this indirect mechanism was not observed (Bertin et al. 2016 ).  ...  This calibration allows us to control the number of ML deposited onto the substrate with a relative precision of about 10 % (Bertin et al. 2017).  ... 
arXiv:2110.04021v1 fatcat:enu24yqwlberrkc4rzfcfrng6e
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