Consulta: creatorFacets:"Durrieu De Madron, Xavier"
Registros recuperados: 15
Data/hora: 01/06/2024 11:25:06

A synthesis of the sedimentary evolution of the Demerara Plateau (Central Atlantic Ocean) from the late Albian to the Holocene
Provedor de dados: 5
Autores: Fanget, Anne-sophie; Loncke, Lies; Pattier, France; Marsset, Tania; Roest, Walter; Tallobre, Cédric; Durrieu De Madron, Xavier; Hernandez Molina, F. Javier.
The Demerara Plateau, off the French Guiana and Surinam margin, corresponds to a prominent sub-horizontal marginal plateau. The interpretation of a large set of seismic data acquired along the Demerara Plateau and integration with previous seismic stratigraphy and drill studies enables a better understanding of the sedimentary evolution of the outer Demerara marginal plateau. Since the end of the transform activity (late Albian), three sedimentary evolutionary stages have been identified. 1) The Pre-contourite Stage (late Albian to early Miocene) is strongly controlled by the structure of the margin that influences the distribution pattern of post-transform deposits through differential thermal subsidence between transform and divergent segments. 2) The...
Tipo: Text
Palavras-chave: Marginal plateau; Demerara Plateau; Contourite; Bottom currents; Mass transport deposits; Atlantic Ocean.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00599/71125/69439.pdf

Dense shelf water cascading in the northwestern Mediterranean during the cold winter 2005: Quantification of the export through the Gulf of Lion and the Catalan margin
Provedor de dados: 5
Autores: Ulses, C.; Estournel, C.; Puig, P.; Durrieu De Madron, Xavier; Marsaleix, P.
Dense shelf water cascading in the northwestern Mediterranean Sea during winter 2005, which was shown to cause large erosion in the canyons and to influence deep benthic ecosystem, was investigated using numerical modeling validated with temperature and current observations. Intense dense water formation took place on the Gulf of Lion and Catalan shelves. Dense shelf water was transferred to the deep basin through three pathways. The Cap de Creus canyon in the western Gulf of Lion already identified as a huge pathway was shown to export about 1000 km 3 of dense water during two months. The Palamos and Blanes canyons located on the Catalan margin were shown to be important pathways for water formed locally and for water transiting from the Gulf of Lion....
Tipo: Text
Ano: 2008
URL: https://archimer.ifremer.fr/doc/00301/41195/40402.pdf

Moose: An integrated multi-sites observatory system in the NW Mediterranean sea
Provedor de dados: 5
Autores: Mantoura, F; Coppola, Laurent; Cousin, M.; Antoine, David; Beguery, Laurent; Blain, Stephane; Bouin, Marie-noelle; Cadiou, Jean-francois; Durrieu De Madron, Xavier; Forget, Philippe; Fraunie, Philippe; Gojak, Carl; Gorsky, Gaby; Goyet, Catherine; Lebaron, Philippe; Lellouche, Jean-michel; Ludwig, Hubert; Molcard, Anne; Mortier, Laurent; Petit De La Villeon, Loic; Petrenko, Anne; Piazzola, J.; Queguiner, B.; Raimbault, Patrick; Rigaud, Vincent; Sempere, Richard; Tamburini, Jean-simon; Testor, Pierre; Vuillemin, Renaud; Zakardjian, B.
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00122/23341/21166.pdf

HyMeX-SOP2: The Field Campaign Dedicated to Dense Water Formation in the Northwestern Mediterranean
Provedor de dados: 5
Autores: Estournel, Claude; Testor, Pierre; Taupier-letage, Isabelle; Bouin, Marie-noelle; Coppola, Laurent; Durand, Pierre; Conan, Pascal; Bosse, Anthony; Brilouet, Pierre-etienne; Beguery, Laurent; Belamari, Sophie; Beranger, Karine; Beuvier, Jonathan; Bourras, Denis; Canut, Guylaine; Doerenbecher, Alexis; Durrieu De Madron, Xavier; D'Ortenzio, Fabrizio; Drobinski, Philippe; Ducrocq, Veronique; Fourrie, Nadia; Giordani, Herve; Houpert, Loic; Labatut, Laurent; Brossier, Cindy Lebeaupin; Nuret, Mathieu; Prieur, Louis; Roussot, Odile; Seyfried, Leo; Somot, Samuel.
The HYdrological cycle in the Mediterranean Experiment (HyMeX) Special Observing Period 2 (SOP2, January 27–March 15, 2013) was dedicated to the study of dense water formation in the Gulf of Lion in the northwestern Mediterranean. This paper outlines the deep convection of winter 2012–2013 and the meteorological conditions that produced it. Alternating phases of mixing and restratification are related to periods of high and low heat losses, respectively. High-resolution, realistic, three-dimensional models are essential for assessing the intricacy of buoyancy fluxes, horizontal advection, and convective processes. At the submesoscale, vertical velocities resulting from symmetric instabilities of the density front bounding the convection zone are crucial...
Tipo: Text
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00386/49688/50224.pdf

Seasonal variability of the advective transport of particulate matter and organic carbon in the Gulf of Lion (NW Mediterranean)
Provedor de dados: 5
Autores: Lapouyade, Agnes; Durrieu De Madron, Xavier.
Nine hydrographic cruises were performed on the Gulf of Lion continental margin between June 1993 and July 1996. These observations are analysed to quantify the fluxes of particulate matter and organic carbon transported along the slope by the Northern Current and to characterise their seasonal variability. Concentration of particulate matter and organic carbon are derived from light-transmission data and water sample analyses. The circulation is estimated from the geostrophic current field. The uncertainty on the transport estimate, related to the error on the prediction of particle concentrations from light-transmission data and the error on velocities, is assessed. The particulate matter inflow entering the Gulf of Lion off Marseille is comparable to...
Tipo: Text
Palavras-chave: Transport advectif; Bilans; Golfe du Lion; Matière particulaire; Carbone organique; Advective transport; Budget; Gulf of Lion; Organic carbon; Particulate matter.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00322/43357/42823.pdf

Deep-Sea Bioluminescence Blooms after Dense Water Formation at the Ocean Surface
Provedor de dados: 5
Autores: Tamburini, Christian; Canals, Miquel; Durrieu De Madron, Xavier; Houpert, Loic; Lefevre, Dominique; Martini, Séverine; D'Ortenzio, Fabrizio; Robert, Anne; Testor, Pierre; Aguilar, Juan Antonio; Al Samarai, Imen; Albert, Arnaud; Andre, Michel; Anghinolfi, Marco; Anton, Gisela; Anvar, Shebli; Ardid, Miguel; Assis Jesus, Ana Carolina; Astraatmadja, Tri L.; Aubert, Jean-jacques; Baret, Bruny; Basa, Stephane; Bertin, Vincent; Biagi, Simone; Bigi, Armando; Bigongiari, Ciro; Bogazzi, Claudio; Bou-cabo, Manuel; Bouhou, Boutayeb; Bouwhuis, Mieke C.; Brunner, Jurgen; Busto, Jose; Camarena, Francisco; Capone, Antonio; Carloganu, Christina; Carminati, Giada; Carr, John; Cecchini, Stefano; Charif, Ziad; Charvis, Philippe; Chiarusi, Tommaso; Circella, Marco; Coniglione, Rosa; Costantini, Heide; Coyle, Paschal; Curtil, Christian; Decowski, Patrick; Dekeyser, Ivan; Deschamps, Anne; Donzaud, Corinne; Dornic, Damien; Dorosti, Hasankiadeh Q.; Drouhin, Doriane; Eberl, Thomas; Emanuele, Umberto; Ernenwein, Jean-pierre; Escoffier, Stephanie; Fermani, Paolo; Ferri, Marcelino; Flaminio, Vincenzo; Folger, Florian; Fritsch, Ulf; Fuda, Jean-luc; Galata, Salvatore; Gay, Pascal; Giacomelli, Giorgio; Giordano, Valentina; Gomez-gonzalez, Juan-pablo; Graf, Kay; Guillard, Goulven; Halladjian, Garadeb; Hallewell, Gregory; Van Haren, Hans; Hartman, Joris; Heijboer, Aart J.; Hello, Yann; Hernandez-rey, Juan Jose; Herold, Bjoern; Hossl, Jurgen; Hsu, Ching-cheng; De Jong, Marteen; Kadler, Matthias; Kalekin, Oleg; Kappes, Alexander; Katz, Uli; Kavatsyuk, Oksana; Kooijman, Paul; Kopper, Claudio; Kouchner, Antoine; Kreykenbohm, Ingo; Kulikovskiy, Vladimir; Lahmann, Robert; Lamare, Patrick; Larosa, Giuseppina; Lattuada, Dario; Lim, Gordon; Lo Presti, Domenico; Loehner, Herbert; Loucatos, Sotiris; Mangano, Salvatore; Marcelin, Michel; Margiotta, Annarita; Martinez-mora, Juan Antonio; Meli, Athina; Montaruli, Teresa; Moscoso, Luciano; Motz, Holger; Neff, Max; Nezri, Emmanuel; Palioselitis, Dimitris; Pavalas, Gabriela E.; Payet, Kevin; Payre, Patrice; Petrovic, Jelena; Piattelli, Paolo; Picot-clemente, Nicolas; Popa, Vlad; Pradier, Thierry; Presani, Eleonora; Racca, Chantal; Reed, Corey; Riccobene, Giorgio; Richardt, Carsten; Richter, Roland; Riviere, Colas; Roensch, Kathrin; Rostovtsev, Andrei; Ruiz-rivas, Joaquin; Rujoiu, Marius; Russo, Valerio G.; Salesa, Francisco; Sanchez-losa, Augustin; Sapienza, Piera; Schock, Friederike; Schuller, Jean-pierre; Schussler, Fabian; Shanidze, Rezo; Simeone, Francesco; Spies, Andreas; Spurio, Maurizio; Steijger, Jos J. M.; Stolarczyk, Thierry; Taiuti, Mauro G. F.; Toscano, Simona; Vallage, Bertrand; Van Elewyck, Veronique; Vannoni, Giulia; Vecchi, Manuela; Vernin, Pascal; Wijnker, Guus; Wilms, Jorn; De Wolf, Els; Yepes, Harold; Zaborov, Dmitry; Zornoza, Juan De Dios; Zuniga, Juan.
The deep ocean is the largest and least known ecosystem on Earth. It hosts numerous pelagic organisms, most of which are able to emit light. Here we present a unique data set consisting of a 2.5-year long record of light emission by deep-sea pelagic organisms, measured from December 2007 to June 2010 at the ANTARES underwater neutrino telescope in the deep NW Mediterranean Sea, jointly with synchronous hydrological records. This is the longest continuous time-series of deep-sea bioluminescence ever recorded. Our record reveals several weeks long, seasonal bioluminescence blooms with light intensity up to two orders of magnitude higher than background values, which correlate to changes in the properties of deep waters. Such changes are triggered by the...
Tipo: Text
Ano: 2013
URL: https://archimer.ifremer.fr/doc/00241/35256/33831.pdf

Particle assemblage characterization in the Rhone river ROFI
Provedor de dados: 5
Autores: Many, Gael; Bourrin, Francois; Durrieu De Madron, Xavier; Pairaud, Ivane; Gangloff, Aurelien; Doxaran, David; Ody, Anouck; Verney, Romaric; Menniti, Christophe; Le Berre, David; Jacquet, Matthias.
An innovative experiment was carried out in the vicinity of the Rhône River mouth in February 2014. An instrumental package, composed of a CTD, a LISST-100 type B (1.25–250 μm) and a LISST-HOLO (20–2000 μm), was used to characterize the hydrological parameters and suspended particles properties (concentration, size, composition, shape and effective density) in the region of freshwater influence (ROFI) of the Rhône River. Besides, a coastal SLOCUM glider, equipped with a CTD and optical backscattering sensors at several wavelengths, was deployed to detail the spatial description of the hydrological parameters and some particle properties. Large river discharge (annual flood ~ 5000 m3 s− 1) and strong wind conditions favored the dispersal of the river plume...
Tipo: Text
Palavras-chave: Gulf of Lions; Rhone River; ROFI; Turbid structures; Particle properties; Glider.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00307/41809/41011.pdf

Deep sediment resuspension and thick nepheloid layer generation by open-ocean convection
Provedor de dados: 5
Autores: Durrieu De Madron, Xavier; Ramondenc, S.; Berline, L.; Houpert, L.; Bosse, Anthony; Martini, S.; Guidi, L.; Conan, P.; Curtil, C.; Delsaut, N.; Kunesch, S.; Ghiglione, J. F.; Marsaleix, P.; Pujo-pay, M.; Severin, T.; Testor, P.; Tamburini, C.
The Gulf of Lions in the northwestern Mediterranean is one of the few sites around the world ocean exhibiting deep open-ocean convection. Based on 6-year long (2009-2015) time series from a mooring in the convection region, shipborne measurements from repeated cruises, from 2012 to 2015, and glider measurements, we report evidence of bottom thick nepheloid layer formation, which is coincident with deep sediment resuspension induced by bottom-reaching convection events. This bottom nepheloid layer, which presents a maximum thickness of around 2000 m in the center of the convection region, probably results from the action of cyclonic eddies that are formed during the convection period and can persist within their core while they travel through the basin. The...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00368/47968/47992.pdf

Deep-sea benthic ecosystem collapse and recovery after an intense Dense Shelf Water Cascading event
Provedor de dados: 5
Autores: Pusceddu, Antonio; Mea, M.; Canals, Miquel; Heussner, Serge; Durrieu De Madron, Xavier; Sanchez-vidal, A.; Bianchelli, S.; Corinaldesi, Cinzia; Dell'Anno, A.; Thomsen, Laurenz; Danovaro, Roberto.
Submarine canyons of several regions of the world are preferential conduits for Dense Shelf Water Cascading (DSWC), which quickly modify physical and chemical conditions while transporting large amounts of material towards the adjacent deep margin. Observations conducted during the last 15 yr in the Cap de Creus Canyon (Gulf of Lion, NW Mediterranean Sea) reported several intense events of DSWC. Their effects on the deep-sea biodiversity and ecosystem functioning are almost unknown. To investigate the effects of these episodic events we analysed changes in the meiofaunal biodiversity inside and outside the canyon. Sediment samples were collected at depths varying from ca. 1000 to &gt; 2100 m in May 2004 (before a major event), April 2005 (during a major...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00129/24026/21982.pdf

A MSFD complementary approach for the assessment of pressures, knowledge and data gaps in Southern European Seas: The PERSEUS experience
Provedor de dados: 5
Autores: Crise, A.; Kaberi, H.; Ruiz, J.; Zatsepin, A.; Arashkevich, E.; Giani, M.; Karageorgis, Aristomenis; Prieto, L.; Pantazi, M.; Gonzalez-fernandez, D.; D'Alcala, M. Ribera; Tornero, V.; Vassilopoulou, V.; Durrieu De Madron, Xavier; Guieu, C.; Puig, P.; Zenetos, A.; Andral, Bruno; Angel, D.; Altukhov, D.; Ayata, S. D.; Aktan, Y.; Balcioglu, E.; Benedetti, F.; Bouchoucha, Marc; Buia, M. -c.; Cadiou, Jean-francois; Canals, M.; Chakroun, M.; Christou, E.; Christidis, M. G.; Civitarese, Giuseppe; Coatu, V.; Corsini-foka, M.; Cozzi, S.; Deidun, A.; Dell'Aquila, A.; Dogrammatzi, A.; Dumitrache, C.; Edelist, D.; Ettahiri, Omar; Fonda-umani, S.; Gana, S.; Galgani, Francois; Gasparini, S.; Giannakourou, A.; Gomoiu, M. -t.; Gubanova, A.; Gucu, Ali-cemal; Gurses, Ozgur; Hanke, G.; Hatzianestis, I.; Herutx, B.; Hone, R.; Huertas, E.; Irisson, J. -o.; Isinibilir, M.; Jimenez, J. A.; Kalogirou, S.; Kapiris, K.; Karamfilov, Ventzi; Kavadas, S.; Keskin, G.; Kideys, Ahmet; Kocak, M.; Kondylatos, G.; Kontogiannis, C.; Kosyan, R.; Koubbi, Philippe; Kuspilic, G.; La Ferla, R.; Langone, L.; Laroche, Sophie; Lazar, Luminita; Lefkaditou, E.; Lemeshko, I. E.; Machias, A.; Malej, A.; Mazzocchi, M. -g.; Medinets, Volodymyr; Mihalopoulos, N.; Miserocchi, S.; Moncheva, Snejana; Mukhanov, V.; Oaie, Gheorghe; Oros, A.; Ozturk, A. A.; Ozturk, B.; Panayotova, M.; Prospathopoulos, A.; Radu, G.; Raykov, V.; Regiero, P.; Reygondeau, G.; Rougeron, Natacha; Salihoglu, B.; Sanchez-vidal, A.; Sannino, G.; Santinelli, C.; Secrieru, D.; Shapiro, G.; Simboura, N.; Shiganova, Tamara; Sprovieri, M.; Stefanova, Kremena; Streftaris, N.; Tirelli, V.; Tom, Moshe; Topaloglu, B.; Topcu, N. E.; Tsagarakis, K.; Tsangaris, C.; Tserpes, G.; Tugrul, S.; Uysal, Z.; Vasile, Daniela; Violaki, K.; Xu, J.; Yuksek, Ahsen; Papathanassiouh, E.
PERSEUS project aims to identify the most relevant pressures exerted on the ecosystems of the Southern European Seas (SES), highlighting knowledge and data gaps that endanger the achievement of SES Good Environmental Status (GES) as mandated by the Marine Strategy Framework Directive (MSFD). A complementary approach has been adopted, by a meta-analysis of existing literature on pressure/impact/knowledge gaps summarized in tables related to the MSFD descriptors, discriminating open waters from coastal areas. A comparative assessment of the Initial Assessments (IAs) for five SES countries has been also independently performed. The comparison between meta-analysis results and IAs shows similarities for coastal areas only. Major knowledge gaps have been...
Tipo: Text
Palavras-chave: Marine Strategy Framework Directive; Southern European Seas; Good Environmental Status; Initial Assessment; PERSEUS project.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00273/38422/36743.pdf

Glider-Based Active Acoustic Monitoring of Currents and Turbidity in the Coastal Zone
Provedor de dados: 5
Autores: Gentil, Mathieu; Many, Gaël; Durrieu De Madron, Xavier; Cauchy, Pierre; Pairaud, Ivane; Testor, Pierre; Verney, Romaric; Bourrin, François.
The recent integration of Acoustic Doppler Current Profilers (ADCPs) onto underwater gliders changes the way current and sediment dynamics in the coastal zone can be monitored. Their endurance and ability to measure in all weather conditions increases the probability of capturing sporadic meteorological events, such as storms and floods, which are key elements of sediment dynamics. We used a Slocum glider equipped with a CTD (Conductivity, Temperature, Depth), an optical payload, and an RDI 600 kHz phased array ADCP. Two deployments were carried out during two contrasting periods of the year in the Rhone River region of freshwater influence (ROFI). Coastal absolute currents were reconstructed using the shear method and bottom tracking measurements, and...
Tipo: Text
Palavras-chave: Glider; Optics; Acoustics; Satellite; Coastal hydrodynamics; Suspended particulate matter; Particulate fluxes; Gulf of Lions; Mediterranean.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00648/76039/76962.pdf

Geometry, fractal dimension and settling velocity of flocs during flooding conditions in the Rhône ROFI
Provedor de dados: 5
Autores: Many, G; Durrieu De Madron, Xavier; Verney, Romaric; Bourrin, F; Renosh, Pr; Jourdin, F; Gangloff, A.
Regions Of Freshwater Influence (ROFI) are of particular interest in a source-to-sink approach in terms of sediment advection, settling, and deposition in the coastal zone. An experiment was carried out in the ROFI of the Rhône River in February 2016 to describe the properties of suspended particulate matter (SPM) during a flood event. A digital holographic camera (LISST-HOLO, 20–2000 μm) was used to estimate the variability of fine sediment floc properties (size, nature and shape) formed in the Rhône mouth. An automatic image toolbox was developed to classify the different constituents of the SPM (as diatoms, bubbles and flocs) and to describe the diversity of floc shapes existing in the material in suspension. We estimated the fractal dimension (DF3D),...
Tipo: Text
Palavras-chave: Flocculation; Fractal dimension; Settling velocity; ROFI; Rhone.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00478/58952/61540.pdf

Research activities in the Gulf of Lion (NW Mediterranean) within the 1997-2001 PNEC project
Provedor de dados: 5
Autores: Raimbault, Patrick; Durrieu De Madron, Xavier.
The French national program on the coastal environment Programme National Environnement Cotier (PNEC) represented during the last decade a major support for the pluridisciplinary oceanographic research in the Gulf of Lion. During the second phase of the program, that lasted from 1997 to 2001, the main objective for this worksite was to establish an annual budget of carbon and associated biogenic elements to characterise the role of this region as source and the sink of elements. This introductory paper provides an over-view of the research framework and recapitulates the major scientific outcomes.
Tipo: Text
Palavras-chave: Environment côtier; Golfe du Lion; Pluridisciplinaire; Bilan; Coastal environment; Gulf of Lion; Pluridisciplinary; Budget.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00301/41208/40376.pdf

Abrupt warming and salinification of intermediate waters interplays with decline of deep convection in the Northwestern Mediterranean Sea
Provedor de dados: 5
Autores: Margirier, Félix; Testor, Pierre; Heslop, Emma; Mallil, Katia; Bosse, Anthony; Houpert, Loïc; Mortier, Laurent; Bouin, Marie-noëlle; Coppola, Laurent; D’ortenzio, Fabrizio; Durrieu De Madron, Xavier; Mourre, Baptiste; Prieur, Louis; Raimbault, Patrick; Taillandier, Vincent.
The Mediterranean Sea is a hotspot for climate change, and recent studies have reported its intense warming and salinification. In this study, we use an outstanding dataset relying mostly on glider endurance lines but also on other platforms to track these trends in the northwestern Mediterranean where deep convection occurs. Thanks to a high spatial coverage and a high temporal resolution over the period 2007–2017, we observed the warming (+0.06 ∘C year−1) and salinification (+0.012 year−1) of Levantine Intermediate Water (LIW) in the Ligurian Sea. These rates are similar to those reported closer to its formation area in the Eastern Mediterranean Sea. Further downstream, in the Gulf of Lion, the intermediate heat and salt content were exported to the deep...
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00663/77507/79256.pdf

Characterizing, modelling and understanding the climate variability of the deep water formation in the North-Western Mediterranean Sea
Provedor de dados: 5
Autores: Somot, Samuel; Houpert, Loic; Sevault, Florence; Testor, Pierre; Bosse, Anthony; Taupier-letage, Isabelle; Bouin, Marie-noelle; Waldman, Robin; Cassou, Christophe; Sanchez-gomez, Emilia; Durrieu De Madron, Xavier; Adloff, Fanny; Nabat, Pierre; Herrmann, Marine.
Observing, modelling and understanding the climate-scale variability of the deep water formation (DWF) in the North-Western Mediterranean Sea remains today very challenging. In this study, we first characterize the interannual variability of this phenomenon by a thorough reanalysis of observations in order to establish reference time series. These quantitative indicators include 31 observed years for the yearly maximum mixed layer depth over the period 1980–2013 and a detailed multi-indicator description of the period 2007–2013. Then a 1980–2013 hindcast simulation is performed with a fully-coupled regional climate system model including the high-resolution representation of the regional atmosphere, ocean, land-surface and rivers. The simulation reproduces...
Tipo: Text
Palavras-chave: Deep water formation; Open-sea deep convection; Interannual variability; Mediterranean Sea; Regional climate models; Climate trends.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00348/45948/45654.pdf