Academic literature on the topic 'Mer – Niveau – Effets des vagues'
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Journal articles on the topic "Mer – Niveau – Effets des vagues"
Brahmi, Noura, Mohsen Dhieb, and Mohamed Chedly Rabia. "Impacts de l‘élévation du niveau de la mer sur l’évolution future d’une côte basse à lagune de la péninsule du Cap Bon (Nord-Est de la Tunisie): approche cartographique." Proceedings of the ICA 1 (May 16, 2018): 1–7. http://dx.doi.org/10.5194/ica-proc-1-14-2018.
Full textAndreevsky, Marc, and Roberto Frau. "Compte rendu de la conférence internationale EVAN 2019." La Houille Blanche, no. 1 (February 2020): 92–94. http://dx.doi.org/10.1051/lhb/2020004.
Full textOlaniyi, W. A. "The proposed Eko Atlantic City project, Victoria Island, Lagos: Preliminary impact assessment of land reclamation on the aquatic lives and climate change." Nigerian Journal of Animal Production 48, no. 4 (March 8, 2021): 194–200. http://dx.doi.org/10.51791/njap.v48i4.3014.
Full textChaouti, A., and A. Bayed. "Effets d'une perturbation anthropique sur les conditions hydrologiques de la langune de Smir (Nord-Ouest, Maroc)." Revue des sciences de l'eau 18 (April 12, 2005): 181–97. http://dx.doi.org/10.7202/705583ar.
Full textBodéré, Jean-Claude. "Le rôle des influences structurales sur le tracé d’une côte rocheuse volcanique : l’exemple des strandflats du sud-est de l’Islande." Géographie physique et Quaternaire 35, no. 2 (February 1, 2011): 231–40. http://dx.doi.org/10.7202/1000439ar.
Full textBen Khelil, Meriem, Olfa Ben Said, Rachid Nefzi, Jamel Ben Abdelmalek, and Patricia Aïss. "Étude expérimentale de l’évolution en microcosme du chrome (VI) dans l’eau de mer et de ses effets sur la macrofaune et les bactéries indigènes de la Lagune de Bizerte (Tunisie)." Revue des sciences de l’eau 25, no. 3 (November 28, 2012): 221–34. http://dx.doi.org/10.7202/1013104ar.
Full textOloghobo, A. D. "Sustainable livestock production and the vagaries of climate change." Nigerian Journal of Animal Production 48, no. 4 (March 8, 2021): 39–58. http://dx.doi.org/10.51791/njap.v48i4.3015.
Full textRose, Catherine V., Adam C. Maloof, Blair Schoene, Ryan C. Ewing, Ulf Linnemann, Mandy Hofmann, and John M. Cottle. "The End-Cryogenian Glaciation of South Australia." Geoscience Canada 40, no. 4 (December 20, 2013): 256. http://dx.doi.org/10.12789/geocanj.2013.40.019.
Full textTaylor, R. B., and J. Shaw. "Coastal character and coastal barrier evolution in the Bras d'Or Lakes, Nova Scotia." Proceedings of the Nova Scotian Institute of Science (NSIS) 42, no. 1 (October 1, 2002). http://dx.doi.org/10.15273/pnsis.v42i1.3596.
Full textEIRAS-STOFELLA, DAURA REGINA. "Brânquias do peixe marinho Oligoplites palometa (Carangidae): morfologia e atividade funcional de estruturas descritas através de microscópio eletrônico de varredura." Acta Biológica Paranaense 29 (December 31, 2000). http://dx.doi.org/10.5380/abpr.v29i0.593.
Full textDissertations / Theses on the topic "Mer – Niveau – Effets des vagues"
Lavaud, Laura. "The contributions of short waves to storm surges in coastal zones." Thesis, La Rochelle, 2022. http://www.theses.fr/2022LAROS007.
Full textStorm surges and associated coastal flooding can result in major catastrophes. Storm surges correspond to a temporary rise in sea level driven by atmospheric pressure gradients, wind and short waves. In particular, the dissipation of short waves in the nearshore drives a mean water level increase, the wave setup, which contributes to storm surges. This PhD thesis examines the contributions of short waves to storm surges, notably the wave setup, in contrasting coastal environments. To that end, the analysis of field data is combined with high-resolution numerical modelling. First, this work investigates the contribution to storm surges of very large storm waves breaking at the inlet of two wave-sheltered environments. The results indicate that the resulting wave setup contributes up to 40% and 23% to the storm surge peak in the Adour Estuary and the Arcachon Lagoon respectively. Second, the dissipation of storm waves and the resulting depth-varying circulation are analysed at a rock shore platform. Two counteracting effects of the high bottom roughness on the wave setup are identified: (1) waves suffer a strong dissipation by bottom friction, which reduces the wave setup compared to a smooth bottom; (2) the wave-induced circulation over a rough bottom enhances the wave setup. Lastly, waves and wave setup dynamics are investigated on a salt marsh. During the studied wind sea event, the halophytic vegetation of the salt marsh accounts for 65% of the wave dissipation, which reduces the wave setup compared to a case without vegetation. New field measurements on salt marshes are needed to explore the effect of wave non-linearities on the wave setup in vegetation fields
Denamiel, Cléa. "Modélisation hydrodynamique 3D en zone pré-littorale : Caractérisation des effets des houles de tempête sur la circulation océanique." Montpellier 2, 2006. http://www.theses.fr/2006MON20175.
Full textClassical coastal circulation models can not reproduce the strong measured three-dimensional currents during storm events, especially at the midshelf scale ( -2 m to -90 m depth) for microtidal seas. The aim of this study is to implement a 3D numerical model (RESYFE) which takes into account the swell effects on the circulation. This model couples REF/DIF and Symphonie models following the physics described by Mellor (2003). RESYFE model is first tested on academic cases in order to validate the numerical implementation. Secondly, in order to compare the model results with measurements, simulations are carried out on realistic cases : the storms of november 1999 in the Banyuls Bay, and of february 2004 off the Têt river. Thirdly, application of the model in the Gulf of Aigues-Mortes shows the effects of storms on sedimentary transport modeled according to Soulsby (1997). Finally, an application of the RESYFE model on an ancient (Jurassic) basin shows that this model can confirm the sedimentologic interpretations
Garat, Marie-Hélène. "Etude expérimentale du décollement de l'air à la crête des vagues et de ses effets sur les flux de quantité de mouvement." Aix-Marseille 2, 1995. http://www.theses.fr/1995AIX22018.
Full textBoutin, Guillaume. "Interactions vagues-banquise en zones polaires." Thesis, Brest, 2018. http://www.theses.fr/2018BRES0050/document.
Full textSea ice, which covers most of the ocean near the poles, is a key component of the climate system. Global warming is driving its massive melting, especially in the Arctic. Where sea ice cover decreases, fetch increases leading to more energetic sea states. This means potentially enhanced wavesice interactions effects in the future. The quick evolution of sea ice extent and volume combined with the intensification of human activities in polar regions urge us to improve our understanding of waves-ice interactions.Sea ice attenuates waves. They can however propagate through it and break it far into the ice cover. Attenuation depends on ice properties such as floe size, thickness, etc. Once broken, resulting floes are more likely to drift and melt. In addition, wave attenuation yields a force which pushes the floes in the direction of wave propagation.A simplified representation of sea ice, including a floe size distribution, has been incorporated in a wave model.It allows us to show the important contribution of dissipative mechanisms in the wave attenuation, especially those induced by the bending of the ice plates. After validation, the modified wave model is coupled to an ice model. The floe size distribution is exchanged in the coupled framework and used in ice lateral melt computation. The force exerted by the waves on the ice floes is sent from the wave model and is shown to compact sea ice in summer. This reduces the melting and significantly increases the temperature and salinity in the surface ocean close to the ice edge
Kergadallan, Xavier. "Estimation des niveaux marins extrêmes avec et sans l’action des vagues le long du littoral métropolitain." Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1102/document.
Full textAccurate knowledge of the statistical distribution of extreme sea levels is of the utmost importance for the characterization of flood risks in coastal areas, with a particular interest devoted to extreme water levels because they may induce the most dramatic consequences. Research was funded by the French Ministry of Ecology, Sustainable Development and Energy to identify the risk of flooding from the sea in France. The aim is to provide values on design levels along the French coasts by a statistical method of extreme value analysis. These levels must include the effect of the three following components: tide, meteorological surge and wave set-up. The principle is as follows: an analysis is carried out at the harbours, where seal level observations are available, then the result is interpolated between the harbours. Different approaches are tested. In particularly, the following specific items are studied:- the tide surge dependence, with two different types of dependence: a temporal dependence and an amplitude dependence;- the interpolation method: with the comparison of a site-by-site analysis (SSA) with a Regional Frequency Analysis (RFA), and a 1-D with a 2-D interpolation;- the estimation of the wave set-up, based on the state of art of parametric formula;- the surge wave dependence, with the bivariate laws of extreme values. The final result is two profiles of the 100-year water level: one for the still water level (tide and meteorological surge), and the other for the sea level with the wave set-up. The highest sea levels are located, for the English Channel and Atlantic coasts at the Saint-Michel-bay (because of the tide), and for the Mediterranean coast around Marseille. The analysis shows that the temporal tide surge dependence has no effect on the estimation of the sea level extreme values. In contrast, the model of the amplitude tide surge dependence shows some interesting results for few harbours. In comparison with the SSA, the RFA tends to smooth the result. RFA estimates are higher along the Mediterranean coast, and similarly along the English Channel and Atlantic coasts. RFA would be recommended for estimating return levels out of the SSA validity domain. Because of the small number of observation sites, a 1-D interpolation, along a smoothed coastline, is preferred. The wave set-up is calculated with the formula of Dean and Walton [2009].The surge wave dependence is medium along the Mediterranean coast. Variations of the dependence factor are more important along the English Channel and the Atlantic coasts, with a maximum at the bay of the Seine and some minima at the bay of Saint-Michel and Calais. Some ideas are provided to perform the methodology for further work
Le, Cozannet Gonéri. "Les conséquences de l'élévation du niveau marin pour le recul du trait de côte." Thesis, Paris 1, 2016. http://www.theses.fr/2016PA01H036/document.
Full textTo which extent does present day sea-level rise affect shoreline changes? This question remains largely open due to the lack of knowledge and data regarding coastal hydrosedimentary processes and relative sea-level changes (i.e., including vertical ground motions). This PhD Thesis first addresses the question of measuring relative sea-level changes using a combination of geodetic data, including satellite-radar interferometry and permanent GPS stations. Then, it examines the case of coasts that experienced sea-level changes significantly different from the global average over the last 50 years. In the case of atoll islands of French Polynesia, the available data illustrate the major role of southern, trade and cyclonic waves in controlling shoreline changes. For some sheltered coasts, waves are suspected to combine with sea-level rise to favour shoreline retreat. In the case of the European coastal database Eurosion, about 17 000 coastal observations are available and have been analysed using a Bayesian network. Here, part of the spatial variability of shoreline changes can be explained by the fact that Fennoscandian coasts are not only accreting, but also uplifting due to the post-glacial rebound. Overall, these results suggest that it is still too early to observe obvious effects of climate-induced sea-level rise. A probabilistic analysis of the coastal sedimentary equation shows that under common assumptions on hydrosedimentary processes, sea-level rise impacts for beaches should become observable during the second half of the 21st century, if the efforts to maintain climate warming below the 2 C threshold fail. Finally, this PhD thesis offers opportunities for stimulating future research in the field of mathematics applied to the question of climate change and sea-level rise impacts to coastal zones
Gervais, Mathieu. "Impacts morphologiques des surcotes et vagues de tempêtes sur le littoral méditerranéen." Perpignan, 2012. http://www.theses.fr/2012PERP1153.
Full textThis work investigates the main morphodynamic processes that occur during storms on a microtidal barred beach (including erosion, flooding), typically influenced by an irregular stormy- wave climate. The overriding question is to define the more important settings involved in the (rapid) morphological response of the beach and shoreface. New regional historical analyses demonstrate the principal influence of storm wave height, determining impact levels (importance of run-up elevation). Big storm events are significantly involved in offshore migration of nearshore bars (N. O. M. Cycles). A large fieldwork campaign was conducted at the Lido of Sète in the Gulf of Lions. More than 20 pre- and post-storm surveys show the respective part of hydrodynamic conditions and steady morphological difference in term of nearshore bar which are either longshore uniform or rhythmic (due to NOM) over 4. Storms quickly modify the nearshore bar (and rhythmic patterns), and relocate large volume of sub-water sand, with a significant role of the wave direction and longshore currents. An intensive hydrodynamic campaign and a numerical circulation model clearly demonstrate the direct influence of bar patterns on surf zone currents in addition to wave settings. A new video monitoring during a storm group introduce the progressive but highly dynamic 3D-morphological change and longshore displacement of bar pattern at storm peak. During storm, bar irregularities have a large effect on sub-aerial beach impact. The predominant role of morphological feedback and inherited morphology (e. G. : pre-storm bar wavelength) is clearly demonstrated and constitutes the leading improvement of this work
Joseph, Vincent. "Stéroïdes et activité chemoréflexe : études fonctionnelles, neurochimiques et moléculaires chez le rat adulte et prépubère élevé au niveau de la mer ou en haute altitude." Lyon 1, 1999. http://www.theses.fr/1999LYO10234.
Full textBrunel, Cédric. "Évolution séculaire de l'avant côte de la méditerranée Française, impact de l'élévation du niveau de la mer et des tempêtes." Phd thesis, Université de Provence - Aix-Marseille I, 2010. http://tel.archives-ouvertes.fr/tel-00511971.
Full textRétif, Fabien. "Modélisation du niveau instantané de la mer en conditions paroxysmales : Caractérisation des contributions à différentes échelles de temps et d’espace." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS126/document.
Full textTropical storms are the main engine of extreme water levels due to strong winds, abundant rainfalls and strong waves attached to these events. The western North Pacific ocean is one of places where these tropical storms (called typhoon in this area) are the most violent in the world exceeding 95 knots of wind speed (175 km/h). The island of Taiwan is located on the most of typhoons tracks which come from the western North Pacific. Every year, three or four typhoons strike Taiwan directly and around twenty pass near it. The quantification of instantaneous water levels variations is still studied by active researches. The identification of physical processes that can become dominant on water level during extreme conditions is crucial for the management and the protection of coastal areas.These PhD works, based on a numerical approach, allow to discuss the fondamental regional hydrodynamic mechanisms which control the sea surface elevation along the sandy barrier of Wan-Tzu-Liao located south-western Taiwan.We used the 3D circulation model SYMPHONIE and the wave model WAVEWATCH III to study the mousson season 2011 and the typhoon season 2012 on an area extending 600 km off Taiwan island. These simulations deal with most of the oceanographical forcings playing a role in the sea surface elevation at the coast : winds, air/sea fluxes, astronomical tides, regional circulation, rivers and waves. The coupling between waves and currents is fully in 3D and the two models share the same computational grid. Moreover, in the framework of the KUNSHEN project, a raft of devices were set in front of the Wan-Tzu Liao barrier from october 2011 to november 2012 along a cross-shore section. The full simulation of water level describes the storm surges generated by typhoons with errors of 0.1 m. With the aim to analyse hydrodynamic mechanisms, we performed a set of mono-forcing simulation that isolate each meteo-marine parameter. Their analysis show that astronomical tide is the dominant forcing (~1 m) followed by the regional circulation (0.5-0.7m) and the meteorological conditions (0.2-0.3 m). This zone displays a very strong dissipative feature that conducts to a very low waves contribution on the sea surface elevation (< 0.1 m). They display also a low contribution of rivers around Taiwan (< 0.1 m)
Books on the topic "Mer – Niveau – Effets des vagues"
Limited, MARTEC. Effects of a one metre rise in mean sea-level at Saint John, New Brunswick and the lower reaches of the Saint John River : executive summary of the report =: Effets d'une hausse d'un mètre du niveau moyen de la mer à Saint-Jean (Nouveau-Brunswick) et au passage inférieur du Saint-Jean : résumé administratif du rapport. Ottawa, Ont: Environment Canada, Atmospheric Environment Service = Environnement Canada, Service de l'environnement atmosphérique, 1987.
Find full textConference papers on the topic "Mer – Niveau – Effets des vagues"
Maruggi, Maria. "L'eau comme élément symbolique dans La Chartreuse de Parme de Stendhal, Les Années de Virginia Woolf et dans Le Guépard de Tomasi di Lampedusa." In XXV Coloquio AFUE. Palabras e imaginarios del agua. Valencia: Universitat Politècnica València, 2016. http://dx.doi.org/10.4995/xxvcoloquioafue.2016.3132.
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