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| Registros recuperados: 33 | |
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| Cocquempot, Lucie; Delacourt, Christophe; Paillet, Jerome; Riou, Philippe; Aucan, Jérôme; Castelle, Bruno; Charria, Guillaume; Claudet, Joachim; Conan, Pascal; Coppola, Laurent; Hocdé, Régis; Planes, Serge; Raimbault, Patrick; Savoye, Nicolas; Testut, Laurent; Vuillemin, Renaud. |
| To understand and predict the physical, chemical, and biological processes at play in coastal and nearshore marine areas requires an integrated, interdisciplinary approach. The case study of the French structuration of coastal ocean and nearshore observing systems provides an original overview on a federative research infrastructure named ILICO. It is a notable example of national structuration and pan-institution efforts to investigate the forefront of knowledge on the processes at work within the critical coastal zone. ILICO comprises, in a pluridisciplinary approach, eight distributed network-systems of observation and data analysis that are accredited and financially supported by French research institutions and the French Ministry for Higher... |
| Tipo: Text |
Palavras-chave: Observation infrastructure; National structuration; Interdisciplinary; Coastal ocean; Coastline. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00503/61489/65292.pdf |
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| Kourafalou, V. H.; De Mey, P.; Le Henaff, M.; Charria, Guillaume; Edwards, C. A.; He, R.; Herzfeld, M.; Pascual, A.; Stanev, E. V.; Tintore, J.; Usui, N.; Van Der Westhuysen, A. J.; Wilkin, J.; Zhu, X.. |
| Recent advances in Coastal Ocean Forecasting Systems (COFS) are discussed. Emphasis is given in the integration of the observational and modeling components, each developed in the context of monitoring and forecasting in the coastal seas. These integrated systems must be linked to larger scale systems toward seamless data sets, nowcasts and forecasts (from the global ocean, through the continental shelf and to the nearshore regions). Emerging capabilities include: methods to optimize coastal/regional observational networks; and probabilistic approaches to address both science and applications related to COFS. International collaboration is essential to exchange best practices, achieve common frameworks and establish standards. |
| Tipo: Text |
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| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00242/35281/83231.pdf |
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| Pouliquen, Sylvie; Maze, Guillaume; Lebreton, Nathanaele; D'Ortenzio, Fabrizio; Alory, Gaël; Delcroix, Thierry; Bourles, Bernard; Blouch, Pierre; Guinet, Christophe; Gouriou, Yves; Gaillard, Fabienne; Heyndrickx, Céline; Le Menn, Marc; Testor, Pierre; Donato, Vincent; Charria, Guillaume; Carval, Thierry; Reverdin, Gilles; Emzivat, Gilbert. |
| Rapport d'activité Coriolis pour l'année 2016 dans le cadre de la convention cadre Coriolis 2014-2020 |
| Tipo: Text |
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| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00388/49970/50562.pdf |
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| Laiz, Irene; Ferrer, Luis; Plomaritis, Theocharis A.; Charria, Guillaume. |
| Daily time series of in-situ tide gauge records and river runoff data were analysed to investigate the contribution of river discharge storm events to sea level in the Bay of Biscay. Three main river systems were considered for this study, representing cases of small (Nervión, 1900 km2), medium (Adour, 16880 km2) and large (Gironde, 84811 km2) watershed basins. Typical storms correspond to water discharge rates of 150, 700, and 1100 m3 s−1 from the Nervión, Adour, and Gironde rivers, respectively. The effect of these events on daily mean sea level was evaluated using two different approaches: (1) through the analysis of time series of tide gauges placed within the river mouths; and (2) through numerical simulations using the ROMS model (Regional Ocean... |
| Tipo: Text |
Palavras-chave: Bay of Biscay; Sea level; Tide gauges; River discharge; ROMS modelling. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00169/28070/26285.pdf |
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| Charria, Guillaume; Vandermeirsch, Frederic; Cailleau, Sylvain; Enigme’s Group,. |
| In a context of global change, ocean regions as the Bay of the Biscay and the English Channel represent key domains to estimate the local impact on the coasts of these evolutions. Indeed, the coastal (considering in this project regions above the continental shelf) and regional (including the continental slope and the abyssal plain) environments are sensitive to these long- term evolutions driven by the open ocean, the atmosphere and the watersheds. These evolutions can have impacts on the whole ecosystem. To understand and, by extension, forecast evolutions of these ecosystems, we need to go further in the description and the analysis of the past interannual variability over decadal to pluri-decadal periods. The ENIGME project is organised following three... |
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| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00242/35285/33802.pdf |
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| Charria, Guillaume. |
| Le golfe de Gascogne constitue une région clé pour de nombreuses activités socio- économiques. Lorsque, par exemple, les autorisations sur les efforts de pêches doivent être révisées ou les organismes publics doivent anticiper l’impact d’évènements extrêmes, il est supposé au départ que la dynamique océanique de cet environnement contraint est connue. Cependant de nombreuses inconnues persistent sur la circulation et les évolutions du contenu hydrologique (Température et Salinité) de cette région. Sur le plateau continental, les courants de densité et la circulation forcée par le vent, arrivent à imprimer un écoulement résiduel dans un environnement oscillant au rythme de la marée. Au niveau du talus continental, une barrière... |
| Tipo: Text |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00475/58702/61212.pdf |
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| Poppeschi, Coline; Charria, Guillaume; Unterberger, Maximilian; Rimmelin-maury, Peggy; Goberville, Eric; Barrier, Nicolas; Petton, Sebastien; Grossteffan, Emilie; Repecaud, Michel; Quemener, Loic; Theetten, Sebastien; Le Roux, Jean-francois; Treguer, Paul. |
| Aims - To detect and characterise extreme events in a coastal ecosystem by combining in situ high-frequency observations and high-resolution numerical simulations -To describe the interannual variability of extreme events in a context of climate change -To quantify the links between extreme low salinity episodes and both large and local scale processes, using weather regimes, precipitations and river runoffs as proxies of hydro-climate forcing |
| Tipo: Text |
Palavras-chave: In-situ observations; High and low frequency measurements; Extreme events; Numerical simulations; Bay of Brest; Weather regimes.. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00631/74346/73999.pdf |
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| Akpinar, Anil; Charria, Guillaume. |
| The gap analysis of observing systems presented in this report is focused on the evaluation of the continuum between coastal observations and open ocean observations (including the shelf-break transition region). Some recommendations are suggested with the aim of improving the efficiency of existing observing systems in coastal and open ocean regions. Gaps in Observing networks, Data availability, Sustainability and Technology are considered. Main recommendations following identified gaps can be summarized as: - The spatial coverage of observing networks need to be improved between the near-coast and open ocean observing systems. - The general lack of observations over the shelf break and the continental shelf can be improved based on opportunity... |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00463/57443/59546.pdf |
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| Charria, Guillaume; Theetten, Sebastien; Vandermeirsch, Frederic; Yelekci, Ozge; Audiffren, Nicole. |
| In the north-east Atlantic Ocean, the Bay of Biscay is an intersection between a coastal constrained dynamics (wide continental shelf and shelf break regions) and an eastern boundary circulation system. In this framework, the eddy kinetic energy is 1 order of magnitude lower than in western boundary systems. To explore this coastal complex system, a high-resolution (1 km, 100 vertical sigma layers) model experiment including tidal dynamics over a period of 10 years (2001–2010) has been implemented. The ability of the numerical environment to reproduce main patterns over interannual scales is demonstrated. Based on this experiment, the features of the (sub)mesoscale processes are described in the deep part of the region (i.e. abyssal plain and continental... |
| Tipo: Text |
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| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00403/51468/52038.pdf |
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| Assassi, Charefeddine; Vandermeirsch, Frederic; Morel, Yves; Charria, Guillaume; Theetten, Sebastien; Dussin, Raphael; Molines, Jean-marc. |
| The aim of this study is to better understand the different overriding mechanisms that control the evolution of the temperature in the Bay of Biscay, through realistic simulations over a period of 50 years. Based on the work of Michel et al. (2009) on the variability of temperature in the Bay of Biscay (Fig1). We will extend the understanding of the interannual variability to the haline contents and the circulation at regional scale. Here we compare two global simulations, ORCA-G70 and ORCA-GRD100 (¼°resolution), that differs mainly in the vertical resolution and we show their variability. |
| Tipo: Text |
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| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00197/30778/29137.pdf |
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| De Mey-frémaux, Pierre; Ayoub, Nadia; Barth, Alexander; Brewin, Robert; Charria, Guillaume; Campuzano, Francisco; Ciavatta, Stefano; Cirano, Mauro; Edwards, Christopher A.; Federico, Ivan; Gao, Shan; Garcia Hermosa, Isabel; Garcia Sotillo, Marcos; Hewitt, Helene; Hole, Lars Robert; Holt, Jason; King, Robert; Kourafalou, Villy; Lu, Youyu; Mourre, Baptiste; Pascual, Ananda; Staneva, Joanna; Stanev, Emil V.; Wang, Hui; Zhu, Xueming. |
| Integration of observations of the coastal ocean continuum, from regional oceans to shelf seas and estuaries/deltas with models, can substantially increase the value of observations and enable a wealth of applications. In particular, models can play a critical role at connecting sparse observations, synthesizing them, and assisting the design of observational networks; in turn, whenever available, observations can guide coastal model development. Coastal observations should sample the two-way interactions between nearshore, estuarine and shelf processes and open ocean processes, while accounting for the different pace of circulation drivers, such as the fast atmospheric, hydrological and tidal processes and the slower general ocean circulation and climate... |
| Tipo: Text |
Palavras-chave: Coastal; Ocean; Observations; Models; Synergy; Synthesis; Assimilation; Array design. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00508/61961/66050.pdf |
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| Caballero, Ainhoa; Ferrer, Luis; Rubio, Anna; Charria, Guillaume; Taylor, Benjamin H.; Grima, Nicolas. |
| The presence of a quasi-stationary anticyclonic eddy within the southeastern Bay of Biscay (centred around 44°30′N-4°W) has been reported on various occasions in the bibliography. The analysis made in this study for the period 2003–2010, by using in situ and remote sensing measurements and model results shows that this mesoscale coherent structure is present almost every year from the end of winter-beginning of spring, to the beginning of fall. During this period it remains in an area limited to the east by the Landes Plateau, to the west by Le Danois Bank and Torrelavega canyon and to the northwest by the Jovellanos seamount. All the observations and analysis made in this contribution, suggest that this structure is generated between Capbreton and... |
| Tipo: Text |
Palavras-chave: Bay of Biscay; Eddies; SWODDIES; Topographic effects; Vortex; Mesoscale; Altimetry; Satellite oceanography; Drifters; ROMS. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00161/27260/25469.pdf |
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| Registros recuperados: 33 | |
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