Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 35
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
A multi-model assessment of the impact of currents, waves and wind in modelling surface drifters and oil spill ArchiMer
De Dominicis, M.; Bruciaferri, D.; Gerin, R.; Pinardi, N.; Poulain, P. M.; Garreau, Pierre; Zodiatis, G.; Perivoliotis, L.; Fazioli, L.; Sorgente, R.; Manganiello, C..
Validation of oil spill forecasting systems suffers from a lack of data due to the scarcity of oil slick in-situ and satellite observations. Drifters (surface drifting buoys) are often considered as proxy for oil spill to overcome this problem. However, they can have different designs and consequently behave in a different way at sea, making it not straightforward to use them for oil spill model validation purposes and to account for surface currents, waves and wind when modelling them. Stemming from the need to validate the MEDESS4MS (Mediterranean Decision Support System for Marine Safety) multi-model oil spill prediction system, which allows access to several ocean, wave and meteorological operational model forecasts, an exercise at sea was carried out...
Tipo: Text Palavras-chave: Oil spill modelling; Drifters; Oil slick; Mediterranean; Met-ocean models.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00326/43724/43175.pdf
Imagem não selecionada

Imprime registro no formato completo
Assessing climate change impacts on marine biodiversity conservation: The case study of mass mortality events in the NW Mediterranean basin ArchiMer
Garrabou, Joachim; Bensoussan, Nathaniel; Pairaud, Ivane; Garreau, Pierre; Somot, Samuel; Linares, Cristina; Kersting, Diego K.; Cebrian, Emma; De Caralt, Sonia; Kipson, Silvija; Ledoux, Jean-baptiste; Frleta-valic, Masa.
The Mediterranean is considered a biodiversity hot‐spot. The Mediterranean represents less than 1% of global ocean surface, but it hosts about 20% of marine biodiversity with a high level of endemic species. The Mediterranean is also considered a hot‐spot for climate change with expected warming over the average along with a very likely increase in the occurrence of heat waves in climate change. In fact Mediterranean waters have been already significantly warming up during the last decades, and this trend is expected to increase during the rest of the 21st century. Mediterranean marine ecosystems are already displaying clear responses to warming such as pelagic productivity, shifts in species’ geographical distributions, modifications of migratory patterns...
Tipo: Text
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00164/27558/25724.pdf
Imagem não selecionada

Imprime registro no formato completo
Challenges for Sustained Observing and Forecasting Systems in the Mediterranean Sea ArchiMer
Tintoré, Joaquín; Pinardi, Nadia; Álvarez-fanjul, Enrique; Aguiar, Eva; Álvarez-berastegui, Diego; Bajo, Marco; Balbin, Rosa; Bozzano, Roberto; Nardelli, Bruno Buongiorno; Cardin, Vanessa; Casas, Benjamin; Charcos-llorens, Miguel; Chiggiato, Jacopo; Clementi, Emanuela; Coppini, Giovanni; Coppola, Laurent; Cossarini, Gianpiero; Deidun, Alan; Deudero, Salud; D'Ortenzio, Fabrizio; Drago, Aldo; Drudi, Massimiliano; El Serafy, Ghada; Escudier, Romain; Farcy, Patrick; Federico, Ivan; Fernández, Juan Gabriel; Ferrarin, Christian; Fossi, Cristina; Frangoulis, Constantin; Galgani, Francois; Gana, Slim; García Lafuente, Jesús; Sotillo, Marcos García; Garreau, Pierre; Gertman, Isaac; Gómez-pujol, Lluis; Grandi, Alessandro; Hayes, Daniel; Hernández-lasheras, Jaime; Herut, Barak; Heslop, Emma; Hilmi, Karim; Juza, Melanie; Kallos, George; Korres, Gerasimos; Lecci, Rita; Lazzari, Paolo; Lorente, Pablo; Liubartseva, Svitlana; Louanchi, Ferial; Malacic, Vlado; Mannarini, Gianandrea; March, David; Marullo, Salvatore; Mauri, Elena; Meszaros, Lorinc; Mourre, Baptiste; Mortier, Laurent; Muñoz-mas, Cristian; Novellino, Antonio; Obaton, Dominique; Orfila, Amine; Pascual, Ananda; Pensieri, Sara; Pérez Gómez, Begoña; Pérez Rubio, Susana; Perivoliotis, Leonidas; Petihakis, George; De La Villéon, Loic Petit; Pistoia, Jenny; Poulain, Pierre-marie; Pouliquen, Sylvie; Prieto, Laura; Raimbault, Patrick; Reglero, Patricia; Reyes, Emma; Rotllan, Paz; Ruiz, Simón; Ruiz, Javier; Ruiz, Inmaculada; Ruiz-orejón, Luis Francisco; Salihoglu, Baris; Salon, Stefano; Sammartino, Simone; Sánchez Arcilla, Agustín; Sánchez-román, Antonio; Sannino, Gianmaria; Santoleri, Rosalia; Sardá, Rafael; Schroeder, Katrin; Simoncelli, Simona; Sofianos, Sarantis; Sylaios, Georgios; Tanhua, Toste; Teruzzi, Anna; Testor, Pierre; Tezcan, Devrim; Torner, Marc; Trotta, Francesco; Umgiesser, Georg; Von Schuckmann, Karina; Verri, Giorgia; Vilibic, Ivica; Yucel, Mustafa; Zavatarelli, Marco; Zodiatis, George.
The Mediterranean community represented in this paper is the result of more than 30 years of EU and nationally funded coordination, which has led to key contributions in science concepts and operational initiatives. Together with the establishment of operational services, the community has coordinated with universities, research centers, research infrastructures and private companies to implement advanced multi-platform and integrated observing and forecasting systems that facilitate the advancement of operational services, scientific achievements and mission-oriented innovation. Thus, the community can respond to societal challenges and stakeholders needs, developing a variety of fit-for-purpose services such as the Copernicus Marine Service. The...
Tipo: Text Palavras-chave: Observing and forecasting systems; Sustained observations; Ocean variability; FAIR data; Climate; Operational services; Science with and for society; SDG's.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00513/62494/66808.pdf
Imagem não selecionada

Imprime registro no formato completo
Comparison between modelling and measurement of marine dispersion, environmental half-time and 137Cs inventories after the Fukushima Daiichi accident ArchiMer
Du Bois, Pascal Bailly; Garreau, Pierre; Laguionie, Philippe; Korsakissok, Irene.
Contamination of the marine environment following the accident at the Fukushima Daiichi nuclear power plant (FDNPP) represents the most important influx of artificial radioactivity released into the sea ever recorded. The evaluation, in near real time, of the total amount of radionuclide released at sea and of the residence time in coastal waters were ones of challenges for nuclear authorities during this event. In the framework of a crisis situation, a numerical hydrodynamical model has been built and used ‘as is’. The concomitant use of this numerical model and in situ data allows the comparison of the simulated and measured environmental half-times. A tuning of the wind drag coefficient has been nevertheless necessary to reproduce the evolution of...
Tipo: Text Palavras-chave: Fukushima accident; Caesium 137; Coastal modelling; Environmental half-time; Radionuclide; Pacific Ocean.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00173/28390/26719.pdf
Imagem não selecionada

Imprime registro no formato completo
Condition hydrodynamique sur la Cote Nord-Bretagne-Cartographie des zones sensibles à l'eutrophisation ArchiMer
Garreau, Pierre.
Un modele numérique est utilisé pour décrire l'advection et le mélange à long terme dus la marée le long des côtes nord-Bretagne. Une cartographie détaillée est proposée.
Tipo: Text
Ano: 1993 URL: http://archimer.ifremer.fr/doc/00080/19089/16684.pdf
Imagem não selecionada

Imprime registro no formato completo
Conditions hydrodynamiques sur la cote Nord-Bretagne ArchiMer
Garreau, Pierre.
Un modèle numérique est utilisé pour décrire l'advection et le mélange à long terme dus à la marée le long des côtes nord-Bretagne. Une cartographie détaillée est proposée.
Tipo: Text
Ano: 1993 URL: http://archimer.ifremer.fr/doc/00104/21514/19095.pdf
Imagem não selecionada

Imprime registro no formato completo
Consequences of radioactive releases into the sea resulting from the accident at the Fukushima Dai-ichi nuclear power plant - Evolution of expert investigation according to the data available ArchiMer
Laguionie, Philippe; Bailly-du-bois, Pascal; Boust, D.; Fievet, B.; Garreau, Pierre; Connan, O.; Charmasson, Sabine; Arnaud, M.; Duffa, Celine; Champion, D..
The accident at the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) in March 2011 led to an unprecedented direct input of artificial radioactivity into the marine environment. The Institute for Radioprotection and Nuclear Safety was requested by the French authorities to investigate the radioecological impact of this input, in particular the potential contamination of products of marine origin used for human consumption. This article describes the close link between the responses provided and the availability of the data, as well as their nature and ability to meet the requirements of expert investigation. These responses were needed: (i) to evaluate the inputs of radionuclides into the marine environment, (ii) to understand their dispersion in seawater,...
Tipo: Text Palavras-chave: Nuclear power plant; Accident analysis; Seawater; Sediment; Biota.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00096/20690/18353.pdf
Imagem não selecionada

Imprime registro no formato completo
Contourite distribution and bottom currents in the NW Mediterranean Sea: Coupling seafloor geomorphology and hydrodynamic modelling ArchiMer
Miramontes Garcia, Elda; Garreau, Pierre; Caillaud, Matthieu; Jouet, Gwenael; Pellen, Romain; Hernández-molina, F. Javier; Clare, Michael A.; Cattaneo, Antonio.
Contourites are common morphological features along continental margins where currents encounter the seafloor. They can provide long-term archives of palaeoceanography, may be prone to sediment instability, and can have a great potential for hydrocarbon exploration. Despite their importance and increasingly recognised ubiquitous occurrence worldwide, the link between oceanographic processes and contourite features is poorly constrained. In particular, it is unclear under which specific conditions sediments are mobilised, modified and deposited by bottom currents. Here, we aim to determine key bottom current characteristics (velocity and bottom shear stress) affecting contourite deposition, by assuming that recent oceanographic regimes may be extended back...
Tipo: Text Palavras-chave: Sediment drift; Erosion; Oceanic circulation; Bottom shear stress.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00483/59426/62241.pdf
Imagem não selecionada

Imprime registro no formato completo
Contourite identification along Italian margins: The case of the Portofino drift (Ligurian Sea) ArchiMer
Cattaneo, Antonio; Miramontes, Elda; Samalens, Kevin; Garreau, Pierre; Caillaud, Matthieu; Marsset, Bruno; Corradi, Nicola; Migeon, Sebastien.
A brief review of the published evidence of current deposits around Italy is the occasion to test the robustness of matching bottom current velocity models and seafloor morphologies to identify contourite drifts not yet documented. We present the result of the regional hydrodynamic model MARS3D in the Northern Tyrrhenian and Ligurian Sea with horizontal resolution of 1.2 km and 60 levels with focus on bottom current: data are integrated over summer and winter 2013 as representative of low and high intensity current conditions. The Eastern Ligurian margin is impacted by the Levantine Intermediate Water (LIW) with modeled mean velocity of bottom current up to 20 cm s−1 in winter 2013 and calculated bottom shear stress exceeding 0.2 N m−2 in water depth of...
Tipo: Text Palavras-chave: Sediment drift; Circulation model; Bottom current velocity; Levantine Intermediate Water; Submarine landslide; Mediterranean.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00378/48977/49394.pdf
Imagem não selecionada

Imprime registro no formato completo
Contraintes de fond dans le Golfe du Lion générées par les houles et les courants ArchiMer
Dufois, Francois; Garreau, Pierre; Le Hir, Pierre.
Simulated data of both currents and waves for the entire year 2001 are used in order to assess their statistical contribution to the erodability power over the shelf of the Gulf of Lion. Bottom circulation patterns are also analysed in response to wind forcing. A method to compute the skin friction component of the total bottom shear stress is then proposed and compared with a classical method.
Tipo: Text Palavras-chave: MARS 3D; Golfe du Lion; Contraintes de peau; Contraintes de fond; Courants; Houles.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-6306.pdf
Imagem não selecionada

Imprime registro no formato completo
Downscaling from Oceanic Global Circulation Model towards Regional and Coastal Model using spectral nudging techniques: application to the Mediterranean Sea and IBI area models ArchiMer
Herbert, Gaelle; Garreau, Pierre; Garnier, Valerie; Dumas, Franck; Caillaud, S.; Chanut, Jerome; Levier, Bruno; Aznar, Roland.
In order to favour the downstream from the European MyOcean service of large scale ocean forecasts to the national service of coastal ocean forecasts, studies of new methods improving the downscaling between global or regional ocean models and coastal ones are in progress. In the framework of PREVIMER and MyOcean projects respectively, IFREMER and Mercator Ocean studied in parallel the impact of the spectral nudging method. In the present work, the performance of spectral nudging was assessed using two regional hydrodynamic models: one of Mediterranean Sea and one of the Iberia-Biscay-Ireland (IBI) area. They are both forced by a coarser global circulation model (GCM) (PSY2V4/Mercator Ocean). This technique prevents large and unrealistic departures between...
Tipo: Text
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00197/30794/29162.pdf
Imagem não selecionada

Imprime registro no formato completo
High-resolution observations and tracking of a dual-core anticyclonic eddy in the Algerian Basin ArchiMer
Garreau, Pierre; Dumas, Franck; Louazel, Stephanie; Stegner, A.; Le Vu, B..
Mesoscale dynamics in the Mediterranean Sea have been investigated for years and anticyclonic eddies are regularly observed features in the Algerian Basin. Here, we used the AMEDA eddy detection algorithm to track and monitor a particular anticyclonic eddy from its birth to its death. The analysis of remote‐sensing datasets (AVISO and SST) revealed that this anticyclone split from an Algerian eddy in October 2015, interacted with the North Balearic Front and merged seven months later, in May 2016, with a similar Algerian eddy. In early spring 2016, a field experiment during the ProtevsMed 2016 cruise thoroughly investigated this eddy, when it was located near the North Balearic Front, taking high‐resolution (Seasoar) hydrological transects, several CTD...
Tipo: Text Palavras-chave: Western Mediterranean Sea; North Balearic Front; Anticyclonic eddy; Submesoscale observations; Eddy tracking tool; High-resolution sampling.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00469/58068/60466.pdf
Imagem não selecionada

Imprime registro no formato completo
Hydrodynamics of the north brittany coast - a synoptic study ArchiMer
Garreau, Pierre.
The tidal hydrodynamics of the northern coast of Brittany is determined by numerical modelling. Long term transportation and mixing are considered for the whole zone. To define areas sensitive to eutrophication (from the hydrodynamic point of view) physical criteria are discussed. An application is carried out for the bay of Lannion and the bay of Saint-Brieuc.
Tipo: Text Palavras-chave: TIDE; ENGLISH CHANNEL; RESIDUAL CURRENT; MIXING.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/00099/21071/18696.pdf
Imagem não selecionada

Imprime registro no formato completo
Identification de « paysages hydrologiques » dans les eaux marines sous juridiction française (France métropolitaine) ArchiMer
Gailhard-rocher, Isabelle; Huret, Martin; Lazure, Pascal; Vandermeirsch, Frederic; Gatti, Julie; Garreau, Pierre; Gohin, Francis.
Dans le contexte de l’évaluation initiale des eaux communautaires demandée par la Directive cadre stratégie pour le milieu marin (DCSMM), les états membres sont chargés de décrire les types d’habitats dominants de la colonne d’eau pour chaque sous-région marine. La présente étude s’inscrit dans ce contexte et a pour objectif de décrire les principales structures hydrologiques de la colonne d’eau. Sur la base des données existantes et des travaux antérieurs, il s’agit de classer les masses d'eau en fonction de critères physiques (température, salinité, turbidité, stratification), reconnus d’intérêt pour les espèces pélagiques et l’écosystème en général, et ainsi de définir une cartographie de l’habitat pélagique moyen. Les données utilisées correspondent...
Tipo: Text Palavras-chave: DCSMM; Habitat pélagique; Classification; Indices hydrologiques; Distribution des espèces; KeywordsMSFD; Pelagic Habitat; Clustering; Hydrological indices; Species distribution.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00069/18018/15547.pdf
Imagem não selecionada

Imprime registro no formato completo
Impact of oceanic fine scales during the intense convection event of winter 2012-2013 in the North-Western Mediterranean sea ArchiMer
Boutet, Martial; Garreau, Pierre; Dumas, Franck.
Several recent studies reveal the importance of submesoscale. The submesoscale dynamics is strongly ageostrophic, leading to intense vertical velocities and intense vertical buoyancy fluxes. Here, we study the role of (sub)mesoscale structures during deep convection events in the North-Western Mediterranean sea. By using numerical configurations at different spatial resolutions and adapted scale separation methods, the impact of submesoscale features is quantified during the different phases of the intense convection event of winter 2012-2013.
Tipo: Text Palavras-chave: North-Western Mediterranean; Open sea.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00585/69685/67559.pdf
Imagem não selecionada

Imprime registro no formato completo
Impacts of climate change on coastal benthic ecosystems: assessing the current risk of mortality outbreaks associated with thermal stress in NW Mediterranean coastal areas ArchiMer
Pairaud, Ivane; Bensoussan, Nathaniel; Garreau, Pierre; Faure, Vincent; Garrabou, Joaquim.
In the framework of climate change, the increase in ocean heat wave frequency is expected to impact marine life. Large-scale positive temperature anomalies already occurred in the northwestern Mediterranean Sea in 1999, 2003 and 2006. These anomalies were associated with mass mortality events of macrobenthic species in coastal areas (0–40 m in depth). The anomalies were particularly severe in 1999 and 2003 when thousands of kilometres of coasts and about 30 species were affected. The aim of this study was to develop a methodology to assess the current risk of mass mortality associated with temperature increase along NW Mediterranean continental coasts. A 3D regional ocean model was used to obtain the temperature conditions for the period 2001–2010, for...
Tipo: Text Palavras-chave: Climate change; Benthic communities; Ocean modelling; Model validation; Impact mapping.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00171/28210/27707.pdf
Imagem não selecionada

Imprime registro no formato completo
Mastodon-2D. Deployment in Mediterranean Sea During Upcast field Experiment ArchiMer
Pairaud, Ivane; Garnier, Valerie; Le Berre, David; Ravel, Christophe; Leizour, Stephane; Lazure, Pascal; Garreau, Pierre.
Tipo: Text
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00412/52310/53080.pdf
Imagem não selecionada

Imprime registro no formato completo
MENOR: a high-resolution (1.2 km) modeling of the North-Western Mediterranean Sea routinely run by the PREVIMER operational forecast system ArchiMer
Garnier, Valerie; Pairaud, Ivane; Nicolle, Amandine; Alekseenko, Elena; Baklouti, Melika; Thouvenin, Benedicte; Lecornu, Fabrice; Garreau, Pierre.
IFREMER has encouraged for over 15 years the oceanographic modeling of sea waters all around the metropolitan French coasts in order to facilitate environmental coastal studies. In that context, the North-Western Mediterranean Sea confi guration (MENOR: 1.2 km – 60 vertical levels) has been introduced in the framework of Previmer operational forecasting system (http://www.previmer.org/en). This article gives an insight into the operational applications and scientific research using this MENOR configuration.
Tipo: Text
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00204/31519/29936.pdf
Imagem não selecionada

Imprime registro no formato completo
Mesoscale and Sub-Mesoscale structures observed during High resolution surveys in Western Mediterranean Basin ArchiMer
Garreau, Pierre; Dumas, Franck; Louazel, Stephanie; Correard, Stephanie.
The Mediterranean Sea is often referred as a “pocket ocean” exhibiting many processes that are primary interest the global ocean circulation given the opportunity to investigate a large panel of oceanic features in a relatively restrained area. Recent field experiments based on the multi-plateform integrated monitoring MOOSE or on intensive targeted experiment HYMEX revisited the hydrology and the dynamics of the Western Basin. Such approaches emphasized the ubiquity of the fine scale dynamics in the Mediterranean dynamics. An overview of the observed processes during 5 recent fields experiments are  presented and discussed regarding meso- and submeso-scale processes.
Tipo: Text Palavras-chave: Mesoscale phenomena; Western Mediterranean; Fronts.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00582/69398/67247.pdf
Imagem não selecionada

Imprime registro no formato completo
Mesoscale slope current variability in the Gulf of Lions. Interpretation of in-situ measurements using a three-dimensional model ArchiMer
Andre, Gael; Garreau, Pierre; Fraunie, Philippe.
The ECOLOPHY experiments aimed at investigating physical exchanges between coastal and open sea. They were carried out in June and December 2005 over the shelf-break in the North-eastern part of the Gulf of Lions (Northwestern Mediterranean Sea). This area is considered to be the generation zone for the eddy and meandering structures of the Northern Current (NC). The objective of the present work is to examine mesoscale variability of this coastal slope current in the light of available data. Numerical modeling is used to support the field data analysis. ADCP current measurements over a one-year period show that mesoscale activity is maximal in late winter, correlating with the seasonal variability of the NC and, also, partly with local winds, Measured...
Tipo: Text Palavras-chave: Numerical modeling; Mesoscale variability; Slope Current; Northern Current; Gulf of Lions; Northwestern Mediterranean Sea.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6461.pdf
Registros recuperados: 35
Primeira ... 12 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional