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Registros recuperados: 14
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A uniform, quality controlled Surface Ocean CO2 Atlas (SOCAT) ArchiMer
Pfeil, B.; Olsen, A.; Bakker, D. C. E.; Hankin, S.; Koyuk, H.; Kozyr, A.; Malczyk, J.; Manke, A.; Metzl, N.; Sabine, C. L.; Akl, J.; Alin, S. R.; Bates, N.; Bellerby, R. G. J.; Borges, A.; Boutin, J.; Brown, P. J.; Cai, W. -j.; Chavez, F. P.; Chen, A.; Cosca, C.; Fassbender, A. J.; Feely, R. A.; Gonzalez-davila, M.; Goyet, C.; Hales, B.; Hardman-mountford, N.; Heinze, C.; Hood, M.; Hoppema, M.; Hunt, C. W.; Hydes, D.; Ishii, M.; Johannessen, T.; Jones, S. D.; Key, R. M.; Koertzinger, A.; Landschuetzer, P.; Lauvset, S. K.; Lefevre, N.; Lenton, A.; Lourantou, A.; Merlivat, L.; Midorikawa, T.; Mintrop, L.; Miyazaki, C.; Murata, A.; Nakadate, A.; Nakano, Y.; Nakaoka, S.; Nojiri, Y.; Omar, A. M.; Padin, X. A.; Park, G. -h.; Paterson, K.; Perez, Fiz F; Pierrot, D.; Poisson, A.; Rios, A. F.; Santana-casiano, J. M.; Salisbury, J.; Sarma, V. V. S. S.; Schlitzer, R.; Schneider, B.; Schuster, U.; Sieger, R.; Skjelvan, I.; Steinhoff, T.; Suzuki, T.; Takahashi, T.; Tedesco, K.; Telszewski, M.; Thomas, H.; Tilbrook, B.; Tjiputra, J.; Vandemark, D.; Veness, T.; Wanninkhof, R.; Watson, A. J.; Weiss, R.; Wong, C. S.; Yoshikawa-inoue, H..
A well-documented, publicly available, global data set of surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated by the international marine carbon science community in 2007 with the aim of providing a comprehensive, publicly available, regularly updated, global data set of marine surface CO2, which had been subject to quality control (QC). Many additional CO2 data, not yet made public via the Carbon Dioxide Information Analysis Center (CDIAC), were retrieved from data originators, public websites and other data centres. All data were put in a uniform format following a strict protocol. Quality control was carried out according to clearly...
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Ano: 2013 URL: https://archimer.ifremer.fr/doc/00383/49450/49923.pdf
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Air-sea CO2 flux variability in frontal regions of the Southern Ocean from CARbon Interface OCean Atmosphere drifters ArchiMer
Boutin, Jacqueline; Merlivat, L.; Henocq, C.; Martin, Nicolas; Sallee, Jean-baptiste.
Nine CARbon Interface OCean Atmosphere (CARIOCA) drifters were deployed in the Southern Ocean (south of the subtropical front, STF) between 2001 and 2006. They recorded 65 months of measurements in all seasons between 57 degrees S and 40 degrees S. Hydrological fronts detected by altimetry indicate that one buoy explored the polar zone (PZ) of the Atlantic Ocean and the western Indian Ocean; the remaining buoys explored the northern and southern parts of the subantarctic zone (SAZ) from the mid-Indian Ocean (73 degrees E) to the eastern Pacific Ocean (112 degrees W). The air-sea CO2 fluxes along the buoy trajectories are primarily driven by the spatial variability of the fugacity of CO2 in seawater, fCO(2): in the SAZ, they vary between -1.1 and -4.2 mol...
Tipo: Text Palavras-chave: Antarctic circumpolar current; Northwestern mediterranean sea; Atlantic sector; Surface water; Gas exchange; Polar front; Temperature; Seawater; Transport.
Ano: 2008 URL: https://archimer.ifremer.fr/doc/00204/31483/29880.pdf
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An update to the Surface Ocean CO2 Atlas (SOCAT version 2) ArchiMer
Bakker, D. C. E.; Pfeil, B.; Smith, K.; Hankin, S.; Olsen, A.; Alin, S. R.; Cosca, C.; Harasawa, S.; Kozyr, A.; Nojiri, Y.; O'Brien, K. M.; Schuster, U.; Telszewski, M.; Tilbrook, B.; Wada, C.; Akl, J.; Barbero, L.; Bates, N. R.; Boutin, J.; Bozec, Y.; Cai, W. -j.; Castle, R. D.; Chavez, F. P.; Chen, L.; Chierici, M.; Currie, K.; De Baar, H. J. W.; Evans, W.; Feely, R. A.; Fransson, A.; Gao, Z.; Hales, B.; Hardman-mountford, N. J.; Hoppema, M.; Huang, W. -j.; Hunt, C. W.; Huss, B.; Ichikawa, T.; Johannessen, T.; Jones, E. M.; Jones, S. D.; Jutterstrom, S.; Kitidis, V.; Koertzinger, A.; Landschuetzer, P.; Lauvset, S. K.; Lefevre, N.; Manke, A. B.; Mathis, J. T.; Merlivat, L.; Metzl, N.; Murata, A.; Newberger, T.; Omar, A. M.; Ono, T.; Park, G. -h.; Paterson, K.; Pierrot, D.; Rios, A. F.; Sabine, C. L.; Saito, S.; Salisbury, J.; Sarma, V. V. S. S.; Schlitzer, R.; Sieger, R.; Skjelvan, I.; Steinhoff, T.; Sullivan, K. F.; Sun, H.; Sutton, A. J.; Suzuki, T.; Sweeney, C.; Takahashi, T.; Tjiputra, J.; Tsurushima, N.; Van Heuven, S. M. A. C.; Vandemark, D.; Vlahos, P.; Wallace, D. W. R.; Wanninkhof, R.; Watson, A. J..
The Surface Ocean CO2 Atlas (SOCAT), an activity of the international marine carbon research community, provides access to synthesis and gridded fCO(2) (fugacity of carbon dioxide) products for the surface oceans. Version 2 of SOCAT is an update of the previous release (version 1) with more data (increased from 6.3 million to 10.1 million surface water fCO(2) values) and extended data coverage (from 1968-2007 to 1968-2011). The quality control criteria, while identical in both versions, have been applied more strictly in version 2 than in version 1. The SOCAT website (http://www.socat.info/) has links to quality control comments, metadata, individual data set files, and synthesis and gridded data products. Interactive online tools allow visitors to explore...
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Ano: 2014 URL: https://archimer.ifremer.fr/doc/00291/40260/39418.pdf
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Carbon, oxygen and biological productivity in the Southern Ocean in and out the Kerguelen plume: CARIOCA drifter results ArchiMer
Merlivat, L.; Boutin, J.; D'Ovidio, F..
The Kerguelen Plateau region in the Indian sector of the Southern Ocean supports annually a large-scale phytoplankton bloom which is naturally fertilized with iron. As part of the second Kerguelen Ocean and Plateau compared Study expedition (KEOPS2) in austral spring (OctoberNovember 2011), one CARbon Interface OCean Atmosphere (CARIOCA) buoy was deployed east of the Kerguelen Plateau. It drifted eastward downstream along the Kerguelen plume. Hourly surface measurements of pCO(2), O-2 and ancillary observations were collected between 1 November 2011 and 12 February 2012 with the aim of characterizing the spatial and temporal variability of the biological net community production, NCP, downstream the Kerguelen Plateau, assessing the impact of iron-induced...
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Ano: 2015 URL: https://archimer.ifremer.fr/doc/00291/40254/38633.pdf
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Contribution des données isotopiques de deutérium, oxygène-18, hélium-3 et tritium, à l'étude de la circulation de la Mer Rouge IRD
Andrié, Chantal; Merlivat, L..
Les données concernant les différents traceurs isotopiques D, 18O, 3He et tritium sont relatives à la campagne Merou de juillet 1982. Les isotopes stables D et 18O, associés aux données de salinité, mettant en évidence une structure à trois couches des eaux au niveau du seuil de Bab-el-Mandeb, au moins jusqu'à 15°N. Une approche du rapport évaporation-précipitation E/P est tentée. Les données d'hélium-3 constituent des contraintes importantes au plan de la circulation profonde et intermédiaires. Une source hydrothermale active a été échantillonnée vers 21°N, responsable de l'enrichissement en hélium-3 est sans doute l'effet d'un courant de retour centré vers 600-800 m. L'ensemble des données isotopiques indique que le flux sortant vers l'Océan Indien...
Tipo: Text Palavras-chave: ISOTOPE; CIRCULATION OCEANIQUE; HYDROTHERMALISME; HELIUM 3.
Ano: 1989 URL: http://www.documentation.ird.fr/hor/fdi:27191
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Distribution des isotopes de l'hydrogène, de l'oxygène et de l'hélium dans les sources hydrothermales sous-marines de la ride Est-Pacifique, à 13°N IRD
Merlivat, L.; Andrié, Chantal; Jean-Baptiste, P..
Tipo: Text Palavras-chave: HYDROLOGIE MARINE; ALTERATION HYDROTHERMALE; EAU DE MER; ANALYSE PHYSICOCHIMIQUE; FLUX THERMIQUE; ANALYSE ISOTOPIQUE; DEUTERIUM; OXYGENE; HYDROGENE; CROUTE OCEANIQUE; BASALTE; MILIEU MARIN; SOURCE HYDROTHERMALE; HELIUM.
Ano: 1984 URL: http://www.documentation.ird.fr/hor/fdi:010023607
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Global average of air-sea CO2 transfer velocity from QuikSCAT scatterometer wind speeds ArchiMer
Boutin, J.; Quilfen, Yves; Merlivat, L.; Piolle, Jean-francois.
The absolute calibration of the relationship between air-sea CO2 transfer velocity, k, and wind speed, U, has been a topic of debate for some time, because k global average, < k >, as deduced from Geochemical Ocean Sections Study oceanic C-14 inventory has differed from that deduced from experimental k-U relationships. Recently, new oceanic C-14 inventories and inversions have lead to a lower < k >. In addition, new measurements performed at sea in high-wind speed conditions have led to new k-U relationship. Meanwhile, quality and sampling of satellite wind speeds has greatly improved. The QuikSCAT scatterometer has provided high-quality wind speeds for more than 7 years. This allows us to estimate the global distributions of k computed using...
Tipo: Text Palavras-chave: CO2 transfer velocity; QuikSCAT; CARIOCA.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6394.pdf
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Observed small spatial scale and seasonal variability of the CO2 system in the Southern Ocean ArchiMer
Resplandy, L.; Boutin, J.; Merlivat, L..
The considerable uncertainties in the carbon budget of the Southern Ocean are largely attributed to unresolved variability, in particular at a seasonal timescale and small spatial scale (similar to 100 km). In this study, the variability of surface pCO(2) and dissolved inorganic carbon (DIC) at seasonal and small spatial scales is examined using a data set of surface drifters including similar to 80 000 measurements at high spatiotemporal resolution. On spatial scales of 100 km, we find gradients ranging from 5 to 50 mu atm for pCO(2) and 2 to 30 mu mol kg(-1) for DIC, with highest values in energetic and frontal regions. This result is supported by a second estimate obtained with sea surface temperature (SST) satellite images and local DIC-SST...
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Ano: 2014 URL: https://archimer.ifremer.fr/doc/00240/35116/33613.pdf
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Surface Ocean CO2 Atlas (SOCAT) Gridded Data Products ArchiMer
Sabine, C. L.; Hankin, S.; Koyuk, H.; Bakker, D. C. E.; Pfeil, B.; Olsen, A.; Metzl, N.; Kozyr, A.; Fassbender, A.; Manke, A.; Malczyk, J.; Akl, J.; Alin, S. R.; Bellerby, R. G. J.; Borges, A.; Boutin, J.; Brown, P. J.; Cai, W. -j.; Chavez, F. P.; Chen, A.; Cosca, C.; Feely, R. A.; Gonzalez-davila, M.; Goyet, C.; Hardman-mountford, N.; Heinze, C.; Hoppema, M.; Hunt, C. W.; Hydes, D.; Ishii, M.; Johannessen, T.; Key, R. M.; Koertzinger, A.; Landschuetzer, P.; Lauvset, S. K.; Lefevre, N.; Lenton, A.; Lourantou, A.; Merlivat, L.; Midorikawa, T.; Mintrop, L.; Miyazaki, C.; Murata, A.; Nakadate, A.; Nakano, Y.; Nakaoka, S.; Nojiri, Y.; Omar, A. M.; Padin, X. A.; Park, G. -h.; Paterson, K.; Perez, F.f.; Pierrot, D.; Poisson, A.; Rios, A. F.; Salisbury, J.; Santana-casiano, J. M.; Sarma, V. V. S. S.; Schlitzer, R.; Schneider, B.; Schuster, U.; Sieger, R.; Skjelvan, I.; Steinhoff, T.; Suzuki, T.; Takahashi, T.; Tedesco, K.; Telszewski, M.; Thomas, H.; Tilbrook, B.; Vandemark, D.; Veness, T.; Watson, A. J.; Weiss, R.; Wong, C. S.; Yoshikawa-inoue, H..
A well documented, publicly available, global data set for surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated by the international marine carbon science community in 2007 with the aim of providing a comprehensive, publicly available, regularly updated, global data set of marine surface CO2, which had been subject to quality control (QC). SOCAT version 1.5 was made public in September 2011 and holds 6.3 million quality controlled surface CO2 data from the global oceans and coastal seas, spanning four decades (1968–2007). The SOCAT gridded data is the second data product to come from the SOCAT project. Recognizing that some groups may have...
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Ano: 2013 URL: https://archimer.ifremer.fr/doc/00141/25178/23284.pdf
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The annual and seasonal variability of the carbonate system in the Bay of Brest (Northwest Atlantic Shelf, 2008–2014) ArchiMer
Salt, Lesley A.; Beaumont, L.; Blain, S.; Bucciarelli, E.; Grossteffan, E.; Guillot, A.; L'Helguen, S.; Merlivat, L.; Repecaud, Michel; Quemener, Loic; Rimmelin-maury, P.; Treguer, P.; Bozec, Y..
From 2008 to 2014, the MAREL-Iroise buoy, located in the Bay of Brest, collected high-frequency measurements of partial pressure of CO2 (pCO2) and ancillary hydrographic parameters, in conjunction with a comprehensive sampling regime of two additional carbonate system variables total alkalinity (AT), and dissolved inorganic carbon (DIC). Biological processes drive variations in AT and DIC throughout the year, except in winter, when primary production is negligible and large freshwater inputs occur. Annually, the Bay of Brest generally behaves as a source of CO2 to the atmosphere (0.14 ± 0.20 mol C m− 2 yr− 1), showing inter-annual variability significantly linked to annual net community production (NCP). The presence of a large community of benthic filter...
Tipo: Text Palavras-chave: Bay of Brest; Carbonate system; Dissolved inorganic carbon; Total alkalinity.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00350/46157/45855.pdf
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The distribution of helium 3 in the deep Western and Southern Indian Ocean IRD
Jamous, D.; Mémery, L.; Andrié, Chantal; Jean-Baptiste, P.; Merlivat, L..
Almost a decade after the Geochemical Ocean Sections Study Indian Expedition, the new deep 3He data from the INDIGO program give a further insight into the distribution of this tracer in the Indian Ocean. This distribution exhibits some major features related on one hand to a hydrothermal 3He input in the Gulf of Aden and on the Mid-Indian Ocean Ridge, and on the other to the origin of the water masses and to the characteristics of the deep circulation. (D'après résumé d'auteur)
Tipo: Text Palavras-chave: GAZ DISSOUS; DISTRIBUTION SPATIALE; PROFIL VERTICAL; MODELE; HELIUM.
Ano: 1992 URL: http://www.documentation.ird.fr/hor/fdi:42329
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Tritium and helium 3 in the northeastern Atlantic ocean during the 1983 Topogulf cruise IRD
Andrié, Chantal; Jean-Baptiste, P.; Merlivat, L..
This study is part of the TOPOGULF program, in which tracer measurements were closely associated with the hydrological data. The sampled area was located near the Azores Islands on the both sides of the mid-Atlantic ridge. The tritium content of the surface waters reveals a strong front along the Azores current. The 3He distributions are used to identify some areas where ventilation processes are active. At depth, the spatial distribution of tritium is studied along isopycnals. In the thermohaline it is essentially the anticyclonic gyre which is responsible for the northeast-southwest gradient in tritium concentrations. The respective influence of the Labrador sea water and the Mediterranean water seems to be ain end member responsible for a decrease of...
Tipo: Text Palavras-chave: SURFACE MARINE; THERMOCLINE; TRITIUM; HELIUM; REPARTITION SPATIALE; MODELE GLOBAL.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:30109
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Tritium in the western Mediterranean Sea during 1981 Phycemed cruise IRD
Andrié, Chantal; Merlivat, L..
Tipo: Text Palavras-chave: CIRCULATION OCEANIQUE; TRACEUR; TRITIUM.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:25516
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Use of tritium and helium 3 for the study of oceanographic process : an example : the Northeastern Atlantic ocean IRD
Andrié, Chantal; Merlivat, L..
These results relate to the Topogulf cruise during summer 1983. The sampled area is located near the Azores islands on both sides of the mid-Atlantic ridge. The tritium content of the surface waters reveals a strong front along the Azores current. At depth, the spatial distribution of tritium is studied along isopycnals. In the thermocline, it is essentially the anticyclonic gyre which is responsible for the Northeast - Southwest gradient in tritium concentration. Some information about the "age" of the water masses is given by the use of both tritium and helium-3. In this way some areas where ventilation processes are active are identified. At middepth, a strong contrast exists between the young waters originating from the Labrador Sea and the more...
Tipo: Text Palavras-chave: DISTRIBUTION SPATIALE; SURFACE MARINE; THERMOCLINE; MASSE D'EAU; TRITIUM; HELIUM 3.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:31168
Registros recuperados: 14
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