Consulta: creatorFacets:"Thierry, Virginie"
Registros recuperados: 128
Data/hora: 05/06/2024 06:31:10

French National Report on Argo - 2015. Present status and future plans
Provedor de dados: 5
Autores: Maze, Guillaume; Cabanes, Cecile; Carval, Thierry; Coatanoan, Christine; D'Ortenzio, Fabrizio; Kolodziejczyk, Nicolas; Lebreton, Nathanaele; Le Traon, Pierre-yves; Poffa, Noe; Pouliquen, Sylvie; Thierry, Virginie.
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00318/42967/42474.pdf

Deep-Arvor floats (4000m) : first results and future plans
Provedor de dados: 5
Autores: Thierry, Virginie; Mercier, Herle; Maze, Guillaume; Le Reste, Serge; Dutreuil, Vincent; Andre, Xavier; Lenault, Yannick.
The Deep-Arvor float is an Argo float designed to achieve more than 150 profiles at 4000m depth. It is equipped with a SBE41CP CTD. Oxygen measurements are in option (4330 optode). Two 3500 dbar models were deployed in 2012 and 2013. Two 4000 m (4120 db) industrials prototypes were deployed in 2014. We expect to deploy twelve 4000 m floats in 2015 and 2016. Results at sea of the first 4 Deep-Arvor are presented.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00281/39195/37749.pdf

Argo quality control manual for dissolved oxygen concentration
Provedor de dados: 5
Autores: Thierry, Virginie; Bittig, Henry; The Argo-bgc Team,.
This document is the Argo quality control manual for Dissolved oxygen concentration. It describes two levels of quality control: • The first level is the real-time system that performs a set of agreed automatic checks.  • Adjustment in real-time can also be performed and the real-time system can evaluate quality flags for adjusted fields  • The second level is the delayed-mode quality control system.
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00354/46542/59751.pdf

Variability of the turbulent kinetic energy dissipation along the A25 Greenland-Portugal transect repeated from 2002 to 2012.
Provedor de dados: 5
Autores: Ferron, Bruno; Kokoszka, Florian; Mercier, Herle; Lherminier, Pascale; Huck, Thierry; Rios, Aida; Thierry, Virginie.
The variability of the turbulent kinetic energy dissipation due to internal waves is quantified using a finescale parameterisation applied to the A25 Greenland-Portugal transect repeated every two years from 2002 to 2012. The internal wave velocity shear and strain are estimated for each cruise at 91 stations from full depth vertical profiles of density and velocity. The 2002–2012 averaged dissipation rate, &lt;ε2002–2012&gt;, in the upper ocean lies in the range 1–10 × 10-10 W kg-1. At depth, &lt;ε2002–2012&gt; is smaller than 1 × 10-10 W kg-1 except over rough topography found at the continental slopes, the Reykjanes Ridge and in a region delimited by the Azores-Biscay Rise and Eriador Seamount. There, the vertical energy flux of internal waves is...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00333/44463/44141.pdf

New insight into the formation and evolution of the East Reykjanes Ridge Current and Irminger Current
Provedor de dados: 5
Autores: Petit, Tillys; Mercier, Herle; Thierry, Virginie.
The Reykjanes Ridge strongly influences the circulation of the North Atlantic Subpolar Gyre as it flows to the Irminger Sea from the Iceland Basin. The circulation is composed of two main along‐ridge currents: the southwestward East Reykjanes Ridge Current (ERRC) in the Iceland Basin and the northeastward Irminger Current (IC) in the Irminger Sea. To study their interconnection through the ridge, as well as their connections with the interior of each basin, velocity and hydrological measurements were carried out along and perpendicular to the crest of the Reykjanes Ridge in June–July 2015 as part of the RREX project. This new dataset changes our view of the ERRC and IC as it reveals undocumented along‐stream evolutions of their hydrological properties,...
Tipo: Text
Palavras-chave: North-Atlantic Subpolar Gyre; Bathymetry; Oceanic circulation; Observations.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00591/70347/68407.pdf

Deep-Arvor: a profiling float for deep sea applications
Provedor de dados: 5
Autores: Le Reste, Serge; Thierry, Virginie; Dutreuil, Vincent; Andre, Xavier; Lenault, Yannick.
The deep-Arvor profiling float has been designed by Ifremer. It is based on the Arvor technology, and can do 150 profiles at 4000 dbars. This poster gives the main features of the deep-Arvor profiling float, its qualification method, results at sea and information on its industrialization.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00222/33369/31774.pdf

NAOS: Profileurs Deep Arvor &amp; Argos-3 – 4ème Réunion annuelle
Provedor de dados: 5
Autores: Dutreuil, Vincent; Andre, Xavier; Le Reste, Serge; Thierry, Virginie; Renaut, Corentin; Brault, Patrice; Sagot, Jerome; David, Arnaud.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00280/39081/37646.pdf

Argo workshop in Ghana, December 2006
Provedor de dados: 5
Autores: Pouliquen, Sylvie; Thierry, Virginie; Coatanoan, Christine; Gaillard, Fabienne; Poulain, Pm; Carval, Thierry.
Tipo: Text
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-6147.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 5902304
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51750/52347.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900643
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00311/42232/41563.pdf

Overturning in the Subpolar North Atlantic Program: a new international ocean observing system
Provedor de dados: 5
Autores: Lozier, M. Susan; Bacon, Sheldon; Bower, Amy S.; Cunningham, Stuart A.; De Jong, M. Femke; De Steur, Laura; Deyoung, Brad; Fischer, Juergen; Gary, Stefan F.; Greenan, Blair J. W.; Heimbach, Patrick; Holliday, Naomi P.; Houpert, Loic; Inall, Mark E.; Johns, William E.; Johnson, Helen L.; Karstensen, Johannes; Li, Feili; Lin, Xiaopei; Mackay, Neill; Marshall, David P.; Mercier, Herle; Myers, Paul G.; Pickart, Robert S.; Pillar, Helen R.; Straneo, Fiammetta; Thierry, Virginie; Weller, Robert A.; Williams, Richard G.; Wilson, Chris; Yang, Jiayan; Zhao, Jian; Zika, Jan D.
A new ocean observing system has been launched in the North Atlantic in order to understand the linkage between the meridional overturning circulation and deep water formation.  For decades oceanographers have understood the Atlantic Meridional Overturning Circulation (AMOC) to be primarily driven by changes in the production of deep water formation in the subpolar and subarctic North Atlantic. Indeed, current IPCC projections of an AMOC slowdown in the 21st century based on climate models are attributed to the inhibition of deep convection in the North Atlantic. However, observational evidence for this linkage has been elusive: there has been no clear demonstration of AMOC variability in response to changes in deep water formation. The motivation for...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00358/46881/46764.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900406
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00311/42199/41514.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 5902299
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00311/42186/41486.pdf

French National Report on Argo - 2014. Present status and future plans
Provedor de dados: 5
Autores: Maze, Guillaume; Cabanes, Cécile; Carval, Thierry; Coatanoan, Christine; D'Ortenzio, Fabrizio; Lebreton, Nathanaelle; Le Reste, Serge; Le Traon, Pierre-yves; Pouliquen, Sylvie; Thierry, Virginie.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00254/36504/35050.pdf

Delayed mode quality control of Ovide Argo data - float WMO 6900495
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00312/42300/41632.pdf

Argo: The Challenge of Continuing 10 Years of Progress
Provedor de dados: 5
Autores: Roemmich, Dean; Belbéoc, Mathieu; Freeland, Howard; Garzoli, Sylvia; Gould, John; Grant, Fiona; Ignaszewski, Mark; King, Brian; Klein, Birgit; Le Traon, Pierre-yves; Mork, Kjell Arne; Brechner Owens, W; Pouliquen, Sylvie; Ravichandran, Muthalagu; Riser, Stephen; Sterl, Andreas; Suga, Toshio; Suk, Moon-sik; Sutton, Philip; Thierry, Virginie.
The Global Ocean Data Assimilation Experiment (GODAE [http://www.godae.org]) has spanned a decade of rapid technological development. The ever-increasing volume and diversity of oceanographic data produced by in situ instruments, remote-sensing platforms, and computer simulations have driven the development of a number of innovative technologies that are essential for connecting scientists with the data that they need. This paper gives an overview of the technologies that have been developed and applied in the course of GODAE, which now provides users of oceanographic data with the capability to discover, evaluate, visualize, download, and analyze data from all over the world. The key to this capability is the ability to reduce the inherent complexity of...
Tipo: Text
Palavras-chave: GODAE; Argo; Global ocean observing system; Ocean data assimilation.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00059/17003/14505.pdf

Interannual variability of the Subpolar Mode Water properties over the Reykjanes Ridge during 1990-2006
Provedor de dados: 5
Autores: Thierry, Virginie; De Boisseson, Eric; Mercier, Herle.
Combining hydrographic data from the OVIDE (Observatoire de la Variabilité Interannuelle à Decennale/Observatory of the Interannual to Decadal Variability) section (Greenland-Portugal) with Argo and historical CTD data over the period 1990–2006, we estimate the variability of the core properties of a variety of Subpolar Mode Water (SPMW) observed on the eastern flank of the Reykjanes Ridge. This SPMW acquires its core properties in the winter mixed layer along the eastern side of the Reykjanes Ridge. We find that the February sea surface temperature along the ridge is a proxy for its core temperature. The sources of this mode water are water masses advected by the mean cyclonic circulation in the Iceland Basin. A density compensated tendency for cooling...
Tipo: Text
Palavras-chave: North Atlantic Oscillation; Subpolar mode water; North Atlantic Ocean.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2007/publication-3487.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 5902297
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted. The OW methode (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with Locodox software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00390/50107/50714.pdf

Global and Full-depth Ocean Temperature Trends during the early 21           st          century from Argo and Repeat Hydrography
Provedor de dados: 5
Autores: Desbruyeres, Damien; Mcdonagh, Elaine L.; King, Brian A.; Thierry, Virginie.
The early 21st century’s warming trend of the full-depth global ocean is calculated by combining the analysis of Argo (top 2000m) and repeat hydrography into a blended full-depth observing system. The surface-to-bottom temperature change over the last decade of sustained observation is equivalent to a heat uptake of 0.72 ± 0.09 W m−2 applied over the surface of the earth, 90% of it being found above 2000m depth. We decompose the temperature trend point-wise into changes in isopycnal depth (heave) and temperature changes along an isopycnal (spiciness) to describe the mechanisms controlling the variability. The heave component dominates the global heat content increase, with the largest trends found in the southern hemisphere’s extratropics (0 - 2000m)...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00361/47213/47169.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900637
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00310/42131/41444.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900191
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00310/42125/41439.pdf

Interior Water-Mass Variability in the Southern Hemisphere Oceans during the Last Decade
Provedor de dados: 5
Autores: Portela, Esther; Kolodziejczyk, Nicolas; Maes, Christophe; Thierry, Virginie.
Using an Argo dataset and the ECCOv4 reanalysis, a volume budget was performed to address the main mechanisms driving the volume change of the interior water masses in the Southern Hemisphere oceans between 2006 and 2015. The subduction rates and the isopycnal and diapycnal water-mass transformation were estimated in a density-spiciness (sigma-tau) framework. Spiciness, defined as thermohaline variations along isopycnals, was added to the potential density coordinates to discriminate between water masses spreading on isopycnal layers. The main positive volume trends were found to be associated with the Subantarctic Mode Waters (SAMW) in the South Pacific and South Indian Ocean basins, revealing a lightening of the upper waters in the Southern Hemisphere....
Tipo: Text
Palavras-chave: Southern Hemisphere; Water masses; Storage; Isopycnal mixing; Water budget; Balance; In situ oceanic observations; Decadal variability.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00609/72065/70771.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900498
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00312/42325/41655.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 1901206
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00409/52036/52702.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900400
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00310/42124/41438.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900405
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00310/42123/41437.pdf

RREX 2017. CTD-O2 Data report
Provedor de dados: 5
Autores: Branellec, Pierre; Thierry, Virginie.
The Reykjanes Ridge is a major topographic feature of the North-Atlantic Ocean. It lies in a central position along the main paths followed by the upper and lower limbs of the Meridional Overturning Cell (MOC), which contributes at moderating the European climate in creating a transport of heat toward the North Atlantic. Our hypothesis is that the Reykjanes Ridge influences the main components of the upper and lower limbs of the MOC because it is a strong constraint on the horizontal and vertical circulation, it impacts the water mass distribution and evolution and it is a region of intense turbulent mixing. The objective of the RREX project is to conduct a process study in order to better understand the role of the Reykjanes Ridge on the dynamics and...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00469/58074/60482.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900642
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00311/42213/41543.pdf

Simulated decadal variability of the Meridional Overturning Circulation across the A25-Ovide section
Provedor de dados: 5
Autores: Desbruyeres, Damien; Thierry, Virginie; Mercier, Herle.
Decadal changes of the Meridional Overturning Circulation (MOC) at the A25-Ovide section between Portugal and Greenland are investigated in a numerical simulation forced by atmospheric reanalysis data for the period 1965-2004. The intensity, composition and structure of the upper MOC limb are assessed using a Lagrangian analysis tool. Its mean transport is fed by water masses of two distinct origins: the subtropics and the Labrador Sea. Two vertical overturning cells are consequently identified: a subtropical cell connecting low and high latitudes (12 Sv) and a cell internal to the subpolar gyre (4 Sv). The decadal MOC variability is associated with synchronized transport changes of the subtropical and subpolar inflow within the North Atlantic Current...
Tipo: Text
Palavras-chave: North Atlantic current; Meridional Overturning Circulation; Horizontal gyre; Lagrangian; Decadal variability.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00130/24117/22919.pdf

Deep-Arvor: Technology &amp; results from the first deployment
Provedor de dados: 5
Autores: Le Reste, Serge; Thierry, Virginie; Dutreuil, Vincent; Andre, Xavier; Trautmann, Coralie.
Deep-Arvor has been designed to achieve more than 150 profiles from 4000 meters depth, with CTD continuously pumping and oxygen measurements. The first prototype of Deep-Arvor was deployed in August 2012. High resolution profiles are transmitted by the Iridium satellite system. Deep-Arvor maintains the self-ballasting feature of Provor/Arvor and the easy deployment of Arvor thanks to its light weight.
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00219/32992/31445.pdf

Mixed layer heat budget in the Iceland Basin from Argo
Provedor de dados: 5
Autores: De Boisseson, Eric; Thierry, Virginie; Mercier, Herle; Caniaux, G.
The mixed layer processes that govern the mode water properties in the Iceland Basin are quantified through a mixed layer heat budget from Argo data collected over 2001-2007. This budget includes the mixed layer heat content variation, the surface heat fluxes, and the Ekman contribution to advection. The geostrophic advection cannot be directly estimated from Argo data but, following previous works, an ad hoc procedure is implemented to take it into account. The resulting annual budget is closed within the error bar but this closure hides some compensation between the summer and the winter residuals (-16 +/- 9 W m(-2) and 21 +/- 26 W m(-2), respectively). A similar heat budget built by using colocated Argo floats in the 1/4 degrees DRAKKAR ORCA025-G70fo...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00017/12807/9761.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900395
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00311/42200/41523.pdf

Stratégie nationale pour les déploiements d'opportunité des profileurs du réseau global Argo
Provedor de dados: 5
Autores: Kolodziejczyk, Nicolas; Carval, Thierry; Claustre, Hervé; D'Ortenzio, Fabrizio; Lebreton, Nathanaele; Le Traon, Pierre-yves; Maze, Guillaume; Poffa, Noe; Pouliquen, Sylvie; Poteau, Antoine; Schmechtig, Catherine; Thierry, Virginie.
To ensure the maintenance of the international Argo network of autonomous profiling float (www.argo.net), France is committed to contribute to deploy a significant part of the global network (around 10%). The profiling floats of the Argo-France program are founded by Ifremer and SHOM, supported by the French “Ministère de l’Enseignement Supérieur, de la Recherche et de l’Innovation” funding via the “Très Grande Infrastructure de recherche” (TGIR), “Contrat de Plan État-Région” (CPER), PIA projects such as Equipex NAOS, and CNES. These purchases are part of the Coriolis inter-agency partnership. Between 50 and 70 T/S type profiling floats (Temperature / Salinity), T / S / DO (Dissolved Oxygen), Deep (Deep) and BGC (Biogeochemical) are purchased each year. A...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00481/59297/61991.pdf

French National Report on Argo - 2019
Provedor de dados: 5
Autores: Maze, Guillaume; Andre, Xavier; Cabanes, Cécile; Carval, Thierry; Claustre, Hervé; Coatanoan, Christine; D'Ortenzio, Fabrizio; Kolodziejczyk, Nicolas; Lebreton, Nathanaele; Le Traon, Pierre-yves; Poteau, Antoine; Poffa, Noe; Pouliquen, Sylvie; Sauzede, Raphaëlle; Schmechtig, Catherine; Thierry, Virginie.
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00620/73198/72392.pdf

Delayed-mode quality control of dissolved oxygen concentration measured by ARGO floats in the North- Atlantic with LOCODOX - Floats deployed in 2012, 2014, 2015, 2016 and 2017
Provedor de dados: 5
Autores: Gallian, Marine; Thierry, Virginie.
As part of the french Equipex NAOS and European H2020 AtlantOS projects, the LOPS is in charge of (1) Implementing and maintaining an array of Argo floats equipped with oxygen sensors in the North-Atlantic Ocean; (2) Performing the quality control of the oxygen data acquired by those floats; (3) Transmitting the qualified data to the Coriolis data center To achieve the last two objectives, the LOPS has developed a Matlab tool (LOCODOX) to correct Argo Oxygen data based on reference datasets. The qualification procedure is done in different steps: (1) Correct the real-time Quality Control flag (QC) in order to put a QC=4 (bad data) to the outliers and "hooks" at the base of the profiles (generally over the first 50m of the ascending profile); (2) When...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00471/58314/60860.pdf

Delayed mode quality control of Ovide Argo data - float WMO 6900493
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00312/42284/41609.pdf

DMQC Cookbook for Core Argo parameters
Provedor de dados: 5
Autores: Cabanes, Cecile; Angel-benavides, Ingrid; Buck, Justin; Coatanoan, Christine; Dobler, Delphine; Herbert, Gaelle; Klein, Birgit; Maze, Guillaume; Notarstefano, Guilio; Owens, Breck; Thierry, Virginie; Walicka, Kamila; Wong, Annie.
This cookbook is to document the end-to-end processing chain of Delayed Mode Quality Control (DMQC) of Core Argo parameters. It provides guidlines on existing manuals, and explains best practices through case studies. This document was initiated after the 1st EU DMQC workshop held in Brest in April 2018, under the MOCCA project.  Lately, this work has been undertaken under EuroArgo RISE project. The document is organized as follows.The first part gives some general information (e.g.: How to check quality indicators in delayed mode? What are the reference databases? How to correct pressure? How to use the OWC software to correct salinity? What are the common failures? etc.). The second part gives more specific information for the regional analysis (specific...
Tipo: Text
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00678/78994/82152.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 5902307
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00390/50136/50750.pdf

In-situ based reanalysis of the global ocean temperature and salinity with ISAS: variability of the heat content and steric height
Provedor de dados: 5
Autores: Gaillard, Fabienne; Reynaud, Thierry; Thierry, Virginie; Kolodziejczyk, Nicolas; Von Schuckmann, Karina.
The In Situ Analysis System (ISAS) was developed to produce gridded fields of temperature and salinity that preserve as much as possible the time and space sampling capabilities of the Argo network of profiling floats. Since the first global re-analysis performed in 2009, the system has evolved and a careful delayed mode processing of the 2002-2012 dataset has been carried out using version 6 of ISAS and updating the statistics to produce the ISAS13 analysis. This last version is now implemented as the operational analysis tool at the Coriolis data centre. The robustness of the results with respect to the system evolution is explored through global quantities of climatological interest: the Ocean Heat Content and the Steric Height. Estimates of errors...
Tipo: Text
Palavras-chave: Databases Physical Meteorology and Climatology Observational techniques and algorithms Temperature In situ oceanic observations Profilers; Oceanic Data quality control Salinity.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00309/42030/41329.pdf

Argo-France. Evolution 2010-2013
Provedor de dados: 5
Autores: Thierry, Virginie.
Tipo: Text
Ano: 2010
URL: https://archimer.ifremer.fr/doc/00493/60438/63879.pdf

SCOR WG 142: Quality Control Procedures for Oxygen and Other Biogeochemical Sensors on Floats and Gliders. Recommendation for oxygen measurements from Argo floats, implementation of in-air-measurement routine to assure highest long-term accuracy
Provedor de dados: 5
Autores: Bittig, Henry; Kortzinger, Arne; Johnson, Ken; Claustre, Hervé; Emerson, Steve; Fennel, Katja; Garcia, Hernan; Gilbert, Denis; Gruber, Nicolas; Kang, Dong-jin; Naqvi, Wajih; Prakash, Satya; Riser, Steven; Thierry, Virginie; Tilbrook, Bronte; Uchida, Hiroshi; Ulloa, Osvaldo; Xing, Xiagang.
Recommendation for Oxygen Measurements from Argo Floats: Implementation of In-Air-Measurement Routine to Assure Highest Long-term Accuracy  As Argo has entered its second decade and chemical/biological sensor technology is improving constantly, the marine biogeochemistry community is starting to embrace the successful Argo float program. An augmentation of the global float observatory, however, has to follow rather stringent constraints regarding sensor characteristics as well as data processing and quality control routines. Owing to the fairly advanced state of oxygen sensor technology and the high scientific value of oceanic oxygen measurements (Gruber et al., 2010), an expansion of the Argo core mission to routine oxygen measurements is perhaps the most...
Tipo: Text
Palavras-chave: Argo; Bio-argo; Oxygen.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00348/45917/46180.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 5902305
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00311/42190/41489.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 5902306
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00390/50135/50749.pdf

Argo Data 1999–2019: Two Million Temperature-Salinity Profiles and Subsurface Velocity Observations From a Global Array of Profiling Floats
Provedor de dados: 5
Autores: Wong, Annie P. S.; Wijffels, Susan E.; Riser, Stephen C.; Pouliquen, Sylvie; Hosoda, Shigeki; Roemmich, Dean; Gilson, John; Johnson, Gregory C.; Martini, Kim; Murphy, David J.; Scanderbeg, Megan; Bhaskar, T. V. S. Udaya; Buck, Justin J. H.; Merceur, Frederic; Carval, Thierry; Maze, Guillaume; Cabanes, Cécile; André, Xavier; Poffa, Noe; Yashayaev, Igor; Barker, Paul M.; Guinehut, Stéphanie; Belbéoch, Mathieu; Ignaszewski, Mark; Baringer, Molly O'Neil; Schmid, Claudia; Lyman, John M.; Mctaggart, Kristene E.; Purkey, Sarah G.; Zilberman, Nathalie; Alkire, Matthew B.; Swift, Dana; Owens, W. Brechner; Jayne, Steven R.; Hersh, Cora; Robbins, Pelle; West-mack, Deb; Bahr, Frank; Yoshida, Sachiko; Sutton, Philip J. H.; Cancouët, Romain; Coatanoan, Christine; Dobbler, Delphine; Juan, Andrea Garcia; Gourrion, Jerome; Kolodziejczyk, Nicolas; Bernard, Vincent; Bourlès, Bernard; Claustre, Hervé; D'Ortenzio, Fabrizio; Le Reste, Serge; Le Traon, Pierre-yves; Rannou, Jean Philippe; Saout-grit, Carole; Speich, Sabrina; Thierry, Virginie; Verbrugge, Nathalie; Angel-benavides, Ingrid M.; Klein, Birgit; Notarstefano, Giulio; Poulain, Pierre-marie; Vélez-belchí, Pedro; Suga, Toshio; Ando, Kentaro; Iwasaska, Naoto; Kobayashi, Taiyo; Masuda, Shuhei; Oka, Eitarou; Sato, Kanako; Nakamura, Tomoaki; Sato, Katsunari; Takatsuki, Yasushi; Yoshida, Takashi; Cowley, Rebecca; Lovell, Jenny L.; Oke, Peter R.; Van Wijk, Esmee M.; Carse, Fiona; Donnelly, Matthew; Gould, W. John; Gowers, Katie; King, Brian A.; Loch, Stephen G.; Mowat, Mary; Turton, Jon; Rama Rao, E. Pattabhi; Ravichandran, M.; Freeland, Howard J.; Gaboury, Isabelle; Gilbert, Denis; Greenan, Blair J. W.; Ouellet, Mathieu; Ross, Tetjana; Tran, Anh; Dong, Mingmei; Liu, Zenghong; Xu, Jianping; Kang, Kiryong; Jo, Hyeongjun; Kim, Sung-dae; Park, Hyuk-min.
In the past two decades, the Argo Program has collected, processed, and distributed over two million vertical profiles of temperature and salinity from the upper two kilometers of the global ocean. A similar number of subsurface velocity observations near 1,000 dbar have also been collected. This paper recounts the history of the global Argo Program, from its aspiration arising out of the World Ocean Circulation Experiment, to the development and implementation of its instrumentation and telecommunication systems, and the various technical problems encountered. We describe the Argo data system and its quality control procedures, and the gradual changes in the vertical resolution and spatial coverage of Argo data from 1999 to 2019. The accuracies of the...
Tipo: Text
Palavras-chave: Global; Ocean; Pressure; Temperature; Salinity; Argo; Profiling; Floats.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00652/76377/77385.pdf

Argo float observations of basin-scale deep convection in the Irminger sea during winter 2011-2012
Provedor de dados: 5
Autores: Piron, Anne; Thierry, Virginie; Mercier, Herle; Caniaux, Guy.
Analysis of Argo data obtained during winter 2011–2012 revealed the presence over the Irminger Basin of an exceptionally large number of profiles (41) with mixed layer depths (MLD) exceeding 700 m, which was deep enough to reach the pool of the intermediate Labrador Sea Water located in the Irminger Sea. Four of these profiles exhibited an MLD of 1000 m, which was the maximum value observed for the winter in question. The Argo sampling in the Irminger Sea during that winter, which was 3 to 4 times greater than for the preceding winters, enabled the different phases of the mixed layer deepening down to 1000 m, together with their spatial extents, to be observed for the first time. Two intense convective periods occurred: in late January south of Cape...
Tipo: Text
Palavras-chave: Deep convection; Irminger Sea; Argo data; Greenland Tip Jet; Mixed layer dynamics; Air-sea interactions.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00309/42059/41354.pdf

Variability of the meridional overturning circulation at the Greenland–Portugal OVIDE section from 1993 to 2010
Provedor de dados: 5
Autores: Mercier, Herle; Lherminier, Pascale; Sarafanov, Artem; Gaillard, Fabienne; Daniault, Nathalie; Desbruyeres, Damien; Falina, Anastasia; Ferron, Bruno; Gourcuff, Claire; Huck, Thierry; Thierry, Virginie.
The meridional overturning circulation (MOC) in the North Atlantic transports heat from the subtropics to high latitudes and hence plays an important role in the Earth’s climate. A region crucial for the MOC is the northern North Atlantic and the adjacent Nordic Seas, where waters transported northward in the MOC upper limb progressively cool, gain density and eventually sink. Here we discuss the variability of the gyre circulation, the MOC and heat flux as quantified from a joint analysis of hydrographic and velocity data from six repeats of the Greenland to Portugal OVIDE section (1997–2010), satellite altimetry and Argo float measurements. For each repeat of the OVIDE section, the full-depth absolute circulation and transports were assessed using an...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00165/27583/25742.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900497
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00310/42127/41441.pdf

Why did deep convection persist over four consecutive winters (2015-2018) southeast of Cape Farewell?
Provedor de dados: 5
Autores: Zunino Rodriguez, Patricia; Mercier, Herle; Thierry, Virginie.
After more than a decade of shallow convection, deep convection returned to the Irminger Sea in 2008 and occurred several times since then to reach exceptional convection depths (&gt; 1500 m) in 2015 and 2016. Additionally, deep mixed layers deeper than 1600 m were also reported southeast of Cape Farewell in 2015. In this context, we used Argo data to show that deep convection occurred southeast of Cape Farewell (SECF) in 2016 and persisted during two additional years in 2017 and 2018 with a maximum convection depth deeper than 1300 m. In this article, we investigate the respective roles of air-sea buoyancy flux and preconditioning of the water column (ocean interior buoyancy content) to explain this 4-year persistence of deep convection SECF. We analyzed...
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00606/71776/70265.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 5902303
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51751/52348.pdf

Delayed mode quality control on Argo floats at the Coriolis data center
Provedor de dados: 5
Autores: Coatanoan, Christine; Galaup, P; Thierry, Virginie.
Introduction on Delayed Mode QC: Recalibration is generally not possible due to the no recoverable nature of floats, so float datasets are usually check to an indirect way. Here we present the application of a method based on mapping a set of calibrated data by objective analyzing to the float profile position. The method applied at the Coriolis Data Center is the method of Annie Wong et al (2003) [1] adapted to North Atlantic environment by Lars Böhme [2] to produce the delayed mode data for Gyroscope project in a first time. Recalibration is set up to correct sensor drifts by using historical hydrographic data. The used objective mapping method takes into account the high spatial and temporal variabilities of the North Atlantic [2]. Assuming that a...
Tipo: Text
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-4690.pdf

RREX 2015. S-ADCP data processing report
Provedor de dados: 5
Autores: Petit, Tillys; Thierry, Virginie; Mercier, Herle.
The Reykjanes Ridge is a major topographic feature of the North-Atlantic Ocean. It lies in a central position along the main paths followed by the upper and lower limbs of the Meridional Overturning Cell (MOC), which contributes at moderating the European climate by transporting heat northward. The objective of the RREX project was to conduct a process study in order to better understand the role of the Reykjanes Ridge on the dynamics and water mass transformation in the subpolar gyre and ultimately on the MOC. The RREX2015 cruise, carried out from 5 June to 10 July 2015 on the R/V Thalassa, was the first of the two cruises carried by the RREX project. During this cruise, we realized 133 surface-bottom CTDO2-LADCP stations along 4 sections. Current...
Tipo: Text
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00423/53471/54377.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 1901205
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00409/52035/52701.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900403
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00311/42198/41513.pdf

Compte rendu de la campagne RREX 2015. N/O Thalassa 5 juin 2015 - 10 Juillet 2015
Provedor de dados: 5
Autores: Thierry, Virginie; Branellec, Pierre; Leizour, Stephane; Hamon, Michel.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00300/41154/40345.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900401
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00310/42117/41431.pdf

Le projet Equipex NAOS : l'observation globale des océans Préparation de la nouvelle décennie d'Argo
Provedor de dados: 5
Autores: Le Traon, Pierre-yves; D'Ortenzio, Fabrizio; Babin, Marcel; Claustre, Hervé; Pouliquen, Sylvie; Le Reste, Serge; Thierry, Virginie; Brault, Patrice; Guigue, Michel; Le Menn, Marc.
NAOS (Novel Argo Ocean observing System) is one of the 52 projects selected as part of the Equipex call for proposals from the French programme d'investissements d'avenir. The overall objective of the project is to consolidate and improve the French and European contribution to the international Argo observing system and to prepare the next decade of Argo. The challenge is to set up an effective monitoring of the world ocean and to strengthen French leadership in ocean and climate research and prediction.
Tipo: Text
Palavras-chave: Méthode d'observation océanographique; Réchauffement climatique; Prévision climatique; Salinité de l'eau; Température de l'eau; Océan mondial; Altimètre radar; CO2; Tempête; Cyclone tropical; Mousson; El-Niño; Circulation générale océanique; Climatologie océanographique; Modèle couplé océan-atmosphère; Modèle climatique.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00117/22801/20608.pdf

NAOS : preparing the new decade for Argo
Provedor de dados: 5
Autores: Le Traon, Pierre-yves; D'Ortenzio, Fabrizio; Babin, M.; Claustre, H.; Pouliquen, Sylvie; Le Reste, Serge; Thierry, Virginie; Brault, Patrice; Guigue, Michel; Le Menn, M.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00114/22556/20244.pdf

French National Report on Argo - 2016. Present status and future plans
Provedor de dados: 5
Autores: Maze, Guillaume; Cabanes, Cecile; Carval, Thierry; Claustre, Hervé; Coatanoan, Christine; D'Ortenzio, Fabrizio; Kolodziejczyk, Nicolas; Lebreton, Nathanaele; Poteau, Antoine; Le Reste, Serge; Schmechtig, Catherine; Le Traon, Pierre-yves; Poffa, Noe; Pouliquen, Sylvie; Thierry, Virginie.
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00397/50844/51615.pdf

Delayed mode analysis of DEEP ARVOR floats
Provedor de dados: 5
Autores: Cabanes, Cecile; Racape, Virginie; Thierry, Virginie.
Delayed Mode analysis was performed for deep Arvor floats. First, salinity and temperature profiles were compared to nearby historical CTD profiles. Real time QC flags were verified and modified if necessary. The OW method was  run to estimate a salinity offset or/and a salinity drift using historical CTD profiles as a reference database. Finally, if necessary, the corrections were applied and corrected files were sent to the Coriolis DAC.
Tipo: Text
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00443/55464/57000.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 5902308
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00390/50137/50751.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 1901214
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00409/52039/52705.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900190
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00311/42206/41528.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900641
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00310/42133/41446.pdf

Report on the 2nd Deep Argo Implementation Workshop. Hobart, May 13-15th 2019
Provedor de dados: 5
Autores: Zilberman, Nathalie; King, Brian; Purkey, Sarah; Thierry, Virginie; Roemmich, Dean.
Recent technological advancements have led to the development of 4 new Argo models capable of reaching the deep and abyssal oceans: Deep Arvor and the Deep NINJA, with a pressure limit of 4000 dbar and the Deep SOLO and Deep APEX, with a pressure limit of 6000 dbar. Over the past 3 years, these new deep Argo floats have been tested in a number of regional pilot arrays. The international 2nd Deep Argo Workshop has been held at CSIRO in Hobart, Tasmania on May 13-15, 2019 in order to advance the global implementation of a Deep Argo array by: • Presenting new Deep-Argo-based scientific results • Reviewing the objectives of the Deep Argo Program • Describing the Deep Argo float mission in support of Deep Argo’s scientific objectives • Confirming Deep Argo...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00507/61873/65945.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 5902302
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00390/50134/50748.pdf

On the mechanisms behind decadal heat content changes in the eastern subpolar gyre
Provedor de dados: 5
Autores: Desbruyeres, Damien; Mercier, Herle; Thierry, Virginie.
Historical and modern hydrographic data show substantial decadal variability in the heat content (HC) of the eastern subpolar North Atlantic. Those changes are here investigated in an eddy-permitting simulation (ORCA025-G70) forced by reanalysis products for the period 1965-2004. The observed and simulated decadal signal is characterized by a strong cooling in the 1960’s and 1970’s, a period of minor changes in the 1980’s, and a strong warming in the 1990’s and 2000’s. A heat budget calculation is performed within a box bounded by the Greenland-Scotland sills and the Cape Farewell (Greenland)-Portugal A25-Ovide section. The decadal variability of HC is mainly governed by the integrated effect of anomalous oceanic heat transport across A25-Ovide...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00180/29117/27523.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900396
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report plots QC flags checks and interesting profiles. It explains parameters for determination of a drift (or not) in salinity from the OW method (objective analysis).
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00310/42109/41416.pdf

Oxygen Saturation Surrounding Deep Water Formation Events in the Labrador Sea From Argo-O-2 Data
Provedor de dados: 5
Autores: Wolf, Mitchell K.; Hamme, Roberta C.; Gilbert, Denis; Yashayaev, Igor; Thierry, Virginie.
Deep water formation supplies oxygen-rich water to the deep sea, spreading throughout the ocean by means of the global thermohaline circulation. Models suggest that dissolved gases in newly formed deep water do not come to equilibrium with the atmosphere. However, direct measurements during wintertime convection are scarce, and the controls over the extent of these disequilibria are poorly quantified. Here we show that, when convection reached deeper than 800 m, oxygen in the Labrador Sea was consistently undersaturated at -6.1% to -7.6% at the end of convection. Deeper convection resulted in greater undersaturation, while convection ending later in the year resulted in values closer to equilibrium, from which we produce a predictive relationship. We use...
Tipo: Text
Palavras-chave: Oxygen saturation; Convection; Argo; Labrador Sea; Deep water formation.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00442/55329/56829.pdf

French National Report on Argo - 2018
Provedor de dados: 5
Autores: Maze, Guillaume; Cabanes, Cecile; Carval, Thierry; Claustre, Hervé; Coatanoan, Christine; D'Ortenzio, Fabrizio; Kolodziejczyk, Nicolas; Lebreton, Nathanaele; Le Reste, Serge; Le Traon, Pierre-yves; Poteau, Antoine; Poffa, Noe; Pouliquen, Sylvie; Schmechtig, Catherine; Thierry, Virginie.
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00484/59523/62497.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900490
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00310/42126/41440.pdf

SCOR WG 142: Quality Control Procedures for Oxygen and Other Biogeochemical Sensors on Floats and Gliders. Recommendations on the conversion between oxygen quantities for Bio-Argo floats and other autonomous sensor platforms
Provedor de dados: 5
Autores: Bittig, Henry; Körtzinger, Arne; Johnson, Ken; Claustre, Herve; Emerson, Steve; Fennel, Katja; Garcia, Hernan; Gilbert, Denis; Gruber, Nicolas; Kang, Dong-jin; Naqvi, Wajih; Prakash, Satya; Riser, Steven; Thierry, Virginie; Tilbrook, Bronte; Uchida, Hiroshi; Ulloa, Osvaldo; Xing, Xiaogang.
Tipo: Text
Palavras-chave: Argo; Bio-argo; Oxygen.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00348/45915/56281.pdf

Processing Argo oxygen data at the DAC level
Provedor de dados: 5
Autores: Thierry, Virginie; Bittig, Henry; Gilbert, Denis; Kobayashi, Taiyo; Kanako, Sato; Schmid, Claudia.
This document does NOT address the issue of oxygen data quality control (either real-time or delayed mode). As a preliminary step towards that goal, this document seeks to ensure that all countries deploying floats equipped with oxygen sensors document the data and metadata related to these floats properly. We produced this document in response to action item 14 from the AST-10 meeting in Hangzhou (March 22-23, 2009). Action item 14: Denis Gilbert to work with Taiyo Kobayashi and Virginie Thierry to ensure DACs are processing oxygen data according to recommendations. If the recommendations contained herein are followed, we will end up with a more uniform set of oxygen data within the Argo data system, allowing users to begin analysing not only their own...
Tipo: Text
Palavras-chave: Argo; Bio-argo; Oxygen.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00287/39795/59750.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900452
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00310/42121/41436.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 5902298
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00390/50175/50796.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900639
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00310/42132/41445.pdf

Oxygen correction of Ovide Argo data. Floats WMO 5902299 and 5902305
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents Oxygen corrections with LOCODOX software for the 2 floats 5902299 and 5902305. Delayed mode analysis are archived in another reports : Delayed mode quality control of Ovide Argo data. Float WMO 5902299 Delayed mode quality control of Ovide Argo data. Float WMO 5902305
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00390/50139/50753.pdf

Ocean circulation causes the largest freshening event for 120 years in eastern subpolar North Atlantic
Provedor de dados: 5
Autores: Holliday, N. Penny; Bersch, Manfred; Berx, Barbara; Chafik, Léon; Cunningham, Stuart; Florindo-lópez, Cristian; Hátún, Hjálmar; Johns, William; Josey, Simon A.; Larsen, Karin Margretha H.; Mulet, Sandrine; Oltmanns, Marilena; Reverdin, Gilles; Rossby, Tom; Thierry, Virginie; Valdimarsson, Hedinn; Yashayaev, Igor.
The Atlantic Ocean overturning circulation is important to the climate system because it carries heat and carbon northward, and from the surface to the deep ocean. The high salinity of the subpolar North Atlantic is a prerequisite for overturning circulation, and strong freshening could herald a slowdown. We show that the eastern subpolar North Atlantic underwent extreme freshening during 2012 to 2016, with a magnitude never seen before in 120 years of measurements. The cause was unusual winter wind patterns driving major changes in ocean circulation, including slowing of the North Atlantic Current and diversion of Arctic freshwater from the western boundary into the eastern basins. We find that wind-driven routing of Arctic-origin freshwater intimately...
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00606/71816/70319.pdf

Delayed mode quality control of Ovide Argo data. Float WMO 6901570
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted. The OW methode (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. Cruise reference : GEOVIDE 2014. Pourquoi Pas ? PI : G. SARTHOU - P. LHERMINIER
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51778/52376.pdf

Oxygen correction of Ovide Argo data. Float WMO 5902301
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
In this report, are explained and plotted Oxygen corrections with LOCODOX software. Delayed quality control report is already  archived.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51752/52351.pdf

On the Future of Argo: A Global, Full-Depth, Multi-Disciplinary Array
Provedor de dados: 5
Autores: Roemmich, Dean; Alford, Matthew H.; Claustre, Hervé; Johnson, Kenneth; King, Brian; Moum, James; Oke, Peter; Owens, W. Brechner; Pouliquen, Sylvie; Purkey, Sarah; Scanderbeg, Megan; Suga, Toshio; Wijffels, Susan; Zilberman, Nathalie; Bakker, Dorothee; Baringer, Molly; Belbeoch, Mathieu; Bittig, Henry C.; Boss, Emmanuel; Calil, Paulo; Carse, Fiona; Carval, Thierry; Chai, Fei; Conchubhair, Diarmuid Ó.; D’ortenzio, Fabrizio; Dall’olmo, Giorgio; Desbruyeres, Damien; Fennel, Katja; Fer, Ilker; Ferrari, Raffaele; Forget, Gael; Freeland, Howard; Fujiki, Tetsuichi; Gehlen, Marion; Greenan, Blair; Hallberg, Robert; Hibiya, Toshiyuki; Hosoda, Shigeki; Jayne, Steven; Jochum, Markus; Johnson, Gregory C.; Kang, Kiryong; Kolodziejczyk, Nicolas; Körtzinger, Arne; Traon, Pierre-yves Le; Lenn, Yueng-djern; Maze, Guillaume; Mork, Kjell Arne; Morris, Tamaryn; Nagai, Takeyoshi; Nash, Jonathan; Garabato, Alberto Naveira; Olsen, Are; Pattabhi, Rama Rao; Prakash, Satya; Riser, Stephen; Schmechtig, Catherine; Schmid, Claudia; Shroyer, Emily; Sterl, Andreas; Sutton, Philip; Talley, Lynne; Tanhua, Toste; Thierry, Virginie; Thomalla, Sandy; Toole, John; Troisi, Ariel; Trull, Thomas W.; Turton, Jon; Velez-belchi, Pedro Joaquin; Walczowski, Waldemar; Wang, Haili; Wanninkhof, Rik; Waterhouse, Amy F.; Waterman, Stephanie; Watson, Andrew; Wilson, Cara; Wong, Annie P. S.; Xu, Jianping; Yasuda, Ichiro.
The Argo Program has been implemented and sustained for almost two decades, as a global array of about 4000 profiling floats. Argo provides continuous observations of ocean temperature and salinity versus pressure, from the sea surface to 2000 dbar. The successful installation of the Argo array and its innovative data management system arose opportunistically from the combination of great scientific need and technological innovation. Through the data system, Argo provides fundamental physical observations with broad societally-valuable applications, built on the cost-efficient and robust technologies of autonomous profiling floats. Following recent advances in platform and sensor technologies, even greater opportunity exists now than 20 years ago to (i)...
Tipo: Text
Palavras-chave: Argo; Floats; Global; Ocean; Warming; Circulation; Temperature; Salinity.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00509/62043/66192.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900638
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00312/42327/41657.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 5902301
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00311/42187/41487.pdf

Surface Data of PROVOR/ARVOR floats based on Coriolis GDAC at 08/03/2013
Provedor de dados: 5
Autores: Cabanes, Cecile; Thierry, Virginie.
flThis report describes how the PROVOR and ARVOR oats work close to the sea surface and gives some recommendations on the real time QC tests that should be applied to the near surface salinity and temperature data. The CTD collects discrete (P,T,S) triplets every 10 s but the data is bin-averaged before being transmitted by satellite. Within a slice, instantaneous measurements are rst decimated, keeping triplets that are distant by more than 0.5 dbar and then averaged. Means are calculated using the data at the full resolution available (1 cbar for pressure) and rounded to the transmitted resolution (generally 1 dbar for pressure for ARGOS satellite system, 1 cbar for IRIDIUM). PROVOR and ARVOR floats acquire temperature and salinity data all the way up to...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00405/51630/52185.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 1901211
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software. Cruise reference : M85/1. 2011.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51748/52345.pdf

SNO Argo-France. 2010-2014 report and 2015-2019 evolution
Provedor de dados: 5
Autores: Maze, Guillaume; D'Ortenzio, Fabrizio; Thierry, Virginie; Cabanes, Cecile; Schmechtig, Catherine; The Argo-france Management Board,; Argo-France Management Board.
Tipo: Text
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00493/60435/63878.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 5902269
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00390/50138/50752.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900450
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00311/42204/41527.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900492
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00311/42185/41485.pdf

“Deep-Arvor”: A new profiling float to extend the Argo observations down to 4000m depth.
Provedor de dados: 5
Autores: Le Reste, Serge; Dutreuil, Vincent; Andre, Xavier; Thierry, Virginie; Renaut, Corentin; Le Traon, Pierre-yves; Maze, Guillaume.
The international Argo program, consisting of a global array of more than 3000 free-drifting profiling floats, has now been monitoring the upper 2000 meters of the ocean for several years. One of its main proposed evolutions is to be able to reach the deeper ocean in order to better observe and understand the key role of the deep ocean in the climate system. For this purpose, Ifremer has designed the new “Deep-Arvor” profiling float: it extends the current operational depth down to 4000 meters, and measures temperature and salinity for up to 150 cycles with CTD pumping continuously and 200 cycles in spot sampling mode. High resolution profiles (up to 2000 points) can be transmitted and data are delivered in near real time according to Argo requirements....
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00318/42969/42473.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 1901213
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software. Cruise reference : M85/1. 2011.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51749/52346.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 1901208
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00409/52038/52703.pdf

The northern North Atlantic Ocean mean circulation in the early 21st Century
Provedor de dados: 5
Autores: Daniault, Nathalie; Mercier, Herle; Lherminier, Pascale; Sarafanov, Artem; Falina, Anastasia; Zunino, Patricia; Perezf, Fiz F.; Rios, Aida F.; Ferron, Bruno; Huck, Thierry; Thierry, Virginie; Gladyshev, Sergey.
The decadal mean circulation in the northern North Atlantic was assessed for the early 21st century from repeated ship-based measurements along the Greenland-Portugal OVIDE line, from satellite altimetry and from earlier reported transports across 59.5°N and at the Greenland-Scotland sills. The remarkable quantitative agreement between all data sets allowed us to draw circulation pathways with a high level of confidence. The North Atlantic Current (NAC) system is composed of three main branches, referred to as the northern, central and southern branches, which were traced from the Mid-Atlantic Ridge (MAR), to the Irminger Sea, the Greenland-Scotland Ridge and the subtropical gyre. At OVIDE, the northern and central branches of the NAC fill the whole water...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00345/45569/45177.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900640
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00312/42328/41658.pdf

QC Report. AtlantOS project
Provedor de dados: 5
Autores: Reverdin, Gilles; Thierry, Virginie; Utiz, Julia; D'Ortenzio, Fabrizio; Bradshaw, Elizabeth; Pfeil, Benjamin.
The purpose of task 1 in WP7 in AtlantOS project is to harmonize data exchange and data processing procedures for the EOVs that are acquired by multiple networks.   In this framework, the present report [D7.2] establishes recommendations for automatic quality control procedures in Near RT (a few hours to several days) for the core of 7 EOVs (measured by more than one of Networks involved in AtlantOS): • Physics : temperature (T), Salinity (T), Current for surface and subsurface and Sea level • Biogeochemistry : Oxygen (O2), Chlorophyll-A, Nitrate (NO3) and Carbon (pCO2) for surface and subsurface  The recommendations have been compiled by experts on those EOVs and validated by the Networks acquiring those EOVs in NRT (link with WP2, WP3 and WP4).  These...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00371/48244/48379.pdf

Origin, formation and variability of the Subpolar Mode Water located over the Reykjanes Ridge
Provedor de dados: 5
Autores: De Boisseson, Eric; Thierry, Virginie; Mercier, Herle; Caniaux, G.; Desbruyeres, Damien.
The origin and formation of the Subpolar Mode Water (SPMW) located over the Reykjanes Ridge in the North-Atlantic Ocean and the variability of its properties over the period 1966-2004 are investigated through the use of a global eddy-permitting (1/4 degrees) ocean/sea-ice model and a Lagrangian analysis tool. The SPMW is fed by subtropical and subpolar waters advected by the branches of the North-Atlantic Current. The SPMW acquires its properties when its source waters enter the winter mixed layer in the Iceland Basin. The SPMW temperature variability is mainly explained by variations of the relative contributions of the subtropical and subpolar water transports to the total transport. Compared to the 1966-2004 mean, lower (higher) subtropical water...
Tipo: Text
Palavras-chave: Iceland Basin; Lagrangian analysis; North Atlantic current; Subpolar mode water; Variability.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00114/22510/20192.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 5902300
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00390/50133/50747.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900449
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00310/42119/41433.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900451
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00311/42203/41526.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900397
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report plots QC flags checks and interesting profiles.  It explains parameters for determination of a drift (or not) in salinity from the OW method (objective analysis).
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00310/42096/41399.pdf

Seasonal fluctuations in the deep central equatorial Atlantic Ocean: a data-model comparison
Provedor de dados: 5
Autores: Thierry, Virginie; Mercier, Herle; Treguier, Anne-marie.
Low-frequency current fluctuations in the deep central equatorial Atlantic are analyzed using current meter measurements recorded from November 1992 to November 1994. Current meters were located at about 14 degrees W of longitude and 1 degrees of latitude on both sides of the equator between 1,700 m depth and the ocean bottom. At all sampling depths, the velocity fluctuations are dominantly zonal and symmetrical with respect to the equator. At 1,700 and 2,000 m, the flow is dominated by annual period fluctuations, at 3,000 m, the velocity field amplitude presents a minimum, and at 3,750 and 3,950 m, the flow is modulated by annual and semiannual period variability. The annual signal exhibits an apparent upward phase propagation. When considering the phase...
Tipo: Text
Palavras-chave: Vertical propagation; Equatorial waves; Numerical model; Current meter data; Equatorial Atlantic Ocean.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2257.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900402
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00311/42194/41509.pdf

Preparing the New Phase of Argo: Scientific Achievements of the NAOS Project
Provedor de dados: 5
Autores: Le Traon, Pierre-yves; D'Ortenzio, Fabrizio; Babin, Marcel; Leymarie, Edouard; Marec, Claudie; Pouliquen, Sylvie; Thierry, Virginie; Cabanes, Cecile; Claustre, Hervé; Desbruyeres, Damien; Lacour, Leo; Lagunas, Jose-luis; Maze, Guillaume; Mercier, Herle; Penkerc'H, Christophe; Poffa, Noe; Poteau, Antoine; Prieur, Louis; Racape, Virginie; Randelhoff, Achim; Rehm, Eric; Schmechtig, Catherine Marie; Taillandier, Vincent; Wagener, Thibaut; Xing, Xiaogang.
Argo, the international array of profiling floats, is a major component of the global ocean and climate observing system. In 2010, the NAOS (Novel Argo Observing System) project was selected as part of the French “Investissements d’Avenir” Equipex program. The objectives of NAOS were to consolidate the French contribution to Argo’s core mission (global temperature and salinity measurements down to 2000 m), and also to develop the future generation of French Argo profiling floats and prepare the next phase of the Argo program with an extension to the deep ocean (Deep Argo), biogeochemistry (BGC-Argo) and polar seas. This paper summarizes how NAOS has met its objectives. The project significantly boosted France’s contribution to Argo’s core mission by...
Tipo: Text
Palavras-chave: Profiling floats; Deep ocean; Biogeochemistry; Mediterranean Sea; Arctic; Atlantic; Argo.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00654/76584/77729.pdf

Surface Pressure of PROVOR/ARVOR floats based on Coriolis GDAC at 19/09/2012
Provedor de dados: 5
Autores: Cabanes, Cecile; Thierry, Virginie.
In this report, we check the surface pressure of the Argo PROVOR-ARVOR fleet to detect drift and problems of the pressure sensors. For each DAC and for each float model, we count how many floats have surface pressure (SP) that exeeds 5dB (absolute value). Negative drift are associated with microleak of the Druck pressure sensor. Surface pressure problems at the end of the life of the float might be related to the ”snowflakes” problem. Other surface pressure problems occur and part of them might be related to decoding problems (jump,shift,..)  
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00405/51632/52188.pdf

Deep-Arvor: The results of the first industrial prototype deployment
Provedor de dados: 5
Autores: Dutreuil, Vincent; Le Reste, Serge; Thierry, Virginie; Andre, Xavier; Lenault, Yannick; Renaut, Corentin; Brault, Patrice; Sagot, Jerome; David, Arnaud.
Deep-Arvor was designed by Ifremer to achieve more than 150 profiles from 4,000 meters depth, with CTD continuously pumping and oxygen measurements. After the validation of two first models at the sea, the industrialization has been entrusted to NKE. The first constructed prototypes of Deep-Arvor have been deployed successfully in May 2014. Thanks to its light weight, Deep-Arvor maintains the self-ballasting feature of Provor/Arvor and the easy deployment of Arvor. High resolution profiles are transmitted by the Iridium satellite system.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00222/33347/31748.pdf

LOCODOX: a Software for Argo Oxygen data correction - User Manual
Provedor de dados: 5
Autores: Thierry, Virginie; Brion, Emilie; Gallian, Marine; Reynaud, Thierry; Bouinot, Thomas; Lagadec, Catherine; Piron, Anne; Zunino Rodriguez, Patricia.
LOCODOX is a MATLAB based interactive software that corrects dissolved oxygen concentration data acquired by Argo profiling floats. The correction schemes are based on Takeshita et al (2013) and Bittig and Kortzinger (2018). Three types of correction are proposed : a pressure dependent correction, a time drift correction and a slope/ offset correction (also called Gain correction). LOCODOX works with Argo v3.1 netcdf files and provides files with corrected and well formatted delayed mode Argo data compliant with the Argo format (Argo Data Management Team, 2019).  LOCODOX corrects only oxygen data available in the vertical profiles. This document describes the methodology and the strategy followed by the tool, and it explains how to install and use LOCODOX.
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00630/74190/73791.pdf

A BGC-Argo Guide: Planning, Deployment, Data Handling and Usage
Provedor de dados: 5
Autores: Bittig, Henry C.; Maurer, Tanya L.; Plant, Joshua N.; Schmechtig, Catherine; Wong, Annie P. S.; Claustre, Hervé; Trull, Thomas W.; Udaya Bhaskar, T. V. S.; Boss, Emmanuel; Dall’olmo, Giorgio; Organelli, Emanuele; Poteau, Antoine; Johnson, Kenneth S.; Hanstein, Craig; Leymarie, Edouard; Le Reste, Serge; Riser, Stephen C.; Rupan, A. Rick; Taillandier, Vincent; Thierry, Virginie; Xing, Xiaogang.
The Biogeochemical-Argo program (BGC-Argo) is a new profiling-float-based, ocean wide, and distributed ocean monitoring program which is tightly linked to, and has benefited significantly from, the Argo program. The community has recommended for BGC-Argo to measure six additional properties in addition to pressure, temperature and salinity measured by Argo, to include oxygen, pH, nitrate, downwelling light, chlorophyll fluorescence and the optical backscattering coefficient. The purpose of this addition is to enable the monitoring of ocean biogeochemistry and health, and in particular, monitor major processes such as ocean deoxygenation, acidification and warming and their effect on phytoplankton, the main source of energy of marine ecosystems. Here we...
Tipo: Text
Palavras-chave: Ocean observation; Ocean biogeochemical cycles; Sensors; Carbon cycle; Ocean optics; Best practices; Argo.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00512/62344/66607.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900399
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00311/42193/41508.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900496
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00312/42324/41654.pdf

French National Report on Argo - 2017
Provedor de dados: 5
Autores: Maze, Guillaume; Cabanes, Cecile; Carval, Thierry; Claustre, Hervé; Coatanoan, Christine; D'Ortenzio, Fabrizio; Kolodziejczyk, Nicolas; Lebreton, Nathanaele; Poteau, Antoine; Le Reste, Serge; Schmechtig, Catherine; Le Traon, Pierre-yves; Poffa, Noe; Pouliquen, Sylvie; Thierry, Virginie.
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00435/54642/56063.pdf

Improvement of bias detection in Argo float conductivity sensors and its application in the North Atlantic
Provedor de dados: 5
Autores: Cabanes, Cecile; Thierry, Virginie; Lagadec, Catherine.
We propose modifications of the OW method (Owens and Wong, 2009) used to estimate the time-varying correction of conductivity measurements from Argo floats. These modifications are necessary to account for large interannual to decadal variability of the large-scale salinity field observed, for instance, in the North-Atlantic Ocean and to provide corrections with realistic error bars. The covariance function used to map reference salinity data at the float profile position was modified in order to minimize the contribution of the oldest reference data to the large-scale salinity field estimate. Mapping error now includes errors in the large-scale field estimates and fit error now takes into account the lateral dependence between climatological profiles....
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00337/44843/44431.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900404
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00311/42196/41511.pdf

Physical mechanisms driving oxygen subduction in the global ocean
Provedor de dados: 5
Autores: Portela, Esther; Kolodziejczyk, Nicolas; Vic, Clement; Thierry, Virginie.
Future changes in subduction are suspected to be critical for the ocean deoxygenation predicted by climate models over the 21st century. However, the drivers of global oxygen subduction have not been fully described or quantified. Here, we address the physical mechanisms responsible for the oxygen transport across the late winter mixed layer base and their relation with water‐mass formation. Up to 70% of the global oxygen uptake takes place during Mode Water subduction mostly in the Southern Ocean and the North Atlantic. Te driving mechanisms are (i) the combination of strong currents with large mixed‐layer‐depth gradients at localized hotspots and (ii) the wind‐driven vertical velocity within the Subtropical gyres. Oxygen diffusion, despite being...
Tipo: Text
Palavras-chave: Oxygen subduction&lt; /AUTHOR_KEYWORD&gt; Ocean ventilation&lt; /AUTHOR_KEYWORD&gt; Mode waters&lt; /AUTHOR_KEYWORD&gt; Oxygen difussion&lt; /AUTHOR_KEYWORD&gt.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00645/75670/76537.pdf

ARGO - a decade of progress
Provedor de dados: 5
Autores: Freeland, Howard J.; Roemmich, Dean; Garzoli, Silvia L.; Le Traon, Pierre-yves; Ravichandran, Muthalagu; Riser, Stephen; Thierry, Virginie; Wijffels, Susan; Belbéoch, Mathieu; Gould, John; Grant, Fiona; Ignazewski, Mark; King, Brian; Klein, Birgit; Mork, Kjell Arne; Owens, Breck; Pouliquen, Sylvie; Sterl, Andreas; Suga, Toshio; Suk, Moon-sik; Sutton, Philip; Troisi, Ariel; Vélez-belchi, Pedro Joaquin; Xu, Jianping.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00029/14038/11231.pdf

Surprising return of deep convection to the subpolar North Atlantic Ocean in winter 2007-2008
Provedor de dados: 5
Autores: Vage, Kjetil; Pickart, Robert S.; Thierry, Virginie; Reverdin, Gilles; Lee, Craig M.; Petrie, Brian; Agnew, Tom A.; Wong, Amy; Ribergaard, Mads H.
In the process of open-ocean convection in the subpolar North Atlantic Ocean, surface water sinks to depth as a distinct water mass, the characteristics of which affect the meridional overturning circulation and oceanic heat flux. In addition, carbon is sequestered from the atmosphere in the process. In recent years, this convection has been shallow or non-existent, which could be construed as a consequence of a warmer climate. Here we document the return of deep convection to the subpolar gyre in both the Labrador and Irminger seas in the winter of 2007-2008. We use profiling float data from the Argo programme to document deep mixing. Analysis of a variety of in situ, satellite and reanalysis data shows that contrary to expectations the transition to a...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6415.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900491
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00312/42330/41659.pdf

RREX 2015. CTD-O2 Data report
Provedor de dados: 5
Autores: Branellec, Pierre; Thierry, Virginie.
The Reykjanes Ridge is a major topographic feature of the North-Atlantic Ocean. It lies in a central position along the main paths followed by the upper and lower limbs of the Meridional Overturning Cell (MOC), which contributes at moderating the European climate in creating a transport of heat toward the North Atlantic. Our hypothesis is that the Reykjanes Ridge influences the main components of the upper and lower limbs of the MOC because it is a strong constraint on the horizontal and vertical circulation, it impacts the water mass distribution and evolution and it is a region of intense turbulent mixing. The objective of the RREX project is to conduct a process study in order to better understand the role of the Reykjanes Ridge on the dynamics and...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00360/47156/47114.pdf

Argo quality control manual for biogeochemical data
Provedor de dados: 5
Autores: Schmechtig, Catherine; Thierry, Virginie; The Bio Argo Team,.
This document is the Argo quality control manual for biogeochemical data. It describes two levels of quality control: • The first level is the real-time system that performs a set of agreed automatic checks. • The second level is the delayed-mode quality control system.
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00298/40879/42267.pdf

Delayed mode quality control of Ovide Argo Data. Float WMO 6900398
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie.
This report plots QC flags checks and interesting profiles. It explains parameters for determination of a drift (or not) in salinity from the OW method (objective analysis).
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00310/42107/41415.pdf

Preparing the New Phase of Argo: Technological Developments on Profiling Floats in the NAOS Project
Provedor de dados: 5
Autores: André, Xavier; Le Traon, Pierre-yves; Le Reste, Serge; Dutreuil, Vincent; Leymarie, Edouard; Malardé, Damien; Marec, Claudie; Sagot, Jérôme; Amice, Martin; Babin, Marcel; Claustre, Hervé; David, Arnaud; D’ortenzio, Fabrizio; Kolodziejczyk, Nicolas; Lagunas, José Luis; Le Menn, Marc; Moreau, Bertrand; Nogré, David; Penkerc’h, Christophe; Poteau, Antoine; Renaut, Corentin; Schaeffer, Christophe; Taillandier, Vincent; Thierry, Virginie.
The international array of profiling floats known as Argo is a major component of the global ocean- and climate-observing system. In 2010, the NAOS (Novel Argo Observing System) project was selected as part of France’s Equipex “Investissement d’Avenir” program. The objectives of NAOS were to consolidate the French contribution to the Argo core mission (global temperature and salinity measurements down to 2,000 m) as well as to develop the future generation of French Argo profiling floats and prepare the next phase of the Argo program with an extension to the deep ocean (Deep-Argo), biogeochemistry (BGC-Argo) and polar seas. This paper summarizes the main technological advances and at-sea validations carried out as part of NAOS: development of a deep (4,000...
Tipo: Text
Palavras-chave: Ocean; Argo; Global observing system; Profiling float; Deep; Biogeochemistry; Under-ice; Float technology.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00658/77029/78314.pdf

Delayed mode quality control of Ovide Argo data - float WMO 6900494
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control flags are checked and interesting profiles are plotted.  The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00312/42299/41631.pdf

ISOW spreading and mixing as revealed by Deep‐Argo floats launched in the Charlie Gibbs Fracture Zone
Provedor de dados: 5
Autores: Racape, V.; Thierry, Virginie; Mercier, Herle; Cabanes, Cecile.
To improve our understanding of deep circulation, we deployed five Deep‐Argo floats (0–4000 m) in the Charlie Gibbs Fracture Zone (CGFZ), which channels the flow of Iceland‐Scotland Overflow Water (ISOW), a dense water mass of the North Atlantic Ocean. The floats were programmed to drift at 2750 dbar in the ISOW layer. The floats mainly moved westward in the CGFZ, although some of them followed different routes for few cycles depending on northward intrusions of the North Atlantic Current (NAC) over the CGFZ. One float revealed a direct route for ISOW from CGFZ to the Deep Western Boundary Current at Flemish Cap. In the CGFZ, oxygen data acquired by the floats revealed that the ISOW layer, characterized by salinity higher than 34.94 and density greater...
Tipo: Text
Palavras-chave: North Atlantic Ocean; Deep circulation; Deep-Argo float; Mixing; North Atlantic Current; Iceland-Scotland Overflow Water.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00513/62428/66710.pdf

OVIDE 2010 CTD-O2 Cruise report
Provedor de dados: 5
Autores: Branellec, Pierre; Thierry, Virginie.
The Ovide 5 cruise was carried out from the 7th of June to the 8th of July 2010 on board the N/O Thalassa. It was the fifth and last occurence of the Ovide hydrological section that was performed in June 2002, 2004, 2006, 2008, as part of the CLIVAR program under the name of A25. It is mainly funded by Ifremer, INSU (LEFE-IDAO) and UBO. The Ovide Principal Investigator is Herlé Mercier. A Greenland-Portugal section was previously performed in 1997 under the leadership of S. Bacon (NOCS), slighty south of the Ovide path. The Ovide route is redundant with AR7E (called also A1) on its western part. It begins at Cape Hoppe (southeast tip of Greenland), runs through the Irminger Sea, crosses the Reykjanes Ridge (300 miles north of Charlie-Gibbs Fracture Zone),...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00210/32134/30591.pdf

First direct estimates of volume and water mass transports across the Reykjanes Ridge
Provedor de dados: 5
Autores: Petit, Tillys; Mercier, Herle; Thierry, Virginie.
The Reykjanes Ridge is a major topographic feature located south of Iceland in the North‐Atlantic Ocean that strongly influences the subpolar gyre (SPG) circulation. Based on velocity and hydrographic measurements carried out along the crest of the Reykjanes Ridge from the Icelandic continental shelf to 50°N during the RREX cruise in June – July 2015, we derived the first direct estimates of volume and water mass transports over the Reykjanes Ridge. North of 53.15°N, circulation was mainly westward; south of this latitude it was mainly eastward. The westward transport was estimated at 21.9 ± 2.5 Sv (Sv = 106 m3 s‐1) and represents the SPG intensity. The westward flows followed two main pathways at 57°N near the Bight Fracture Zone and at 59 – 62°N. We...
Tipo: Text
Palavras-chave: North Atlantic subpolar gyre; Bathymetry; Water masses; Circulation; Observations.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00454/56604/58296.pdf

Application file for renewal of the 'National Observation Service' label (INSU/CNRS) 2020-2024: SNO Argo-France
Provedor de dados: 5
Autores: Kolodziejczyk, Nicolas; Cabanes, Cecile; D'Ortenzio, Fabrizio; Maze, Guillaume; Pouliquen, Sylvie; Poteau, Antoine; Schmechtig, Catherine; Thierry, Virginie.
Application file for renewal of labeling as National Observation Service of SNO Argo-France with INSU for the period 2020-2024. This document presents the results of SNO Argo France's activities over the 2015-2019 labeling period; and sets targets for the period 2020-2024.
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00499/61055/64484.pdf

Gyre scale deep convection in the subpolar North-Atlantic Ocean during winter 2014-2015
Provedor de dados: 5
Autores: Piron, Anne; Thierry, Virginie; Mercier, Herle; Caniaux, G.
Using Argo floats, we show that a major deep convective activity occurred simultaneously in the Labrador Sea (LAB), South of Cap Farewell (SCF) and the Irminger Sea (IRM) during winter 2014–2015. Convection was driven by exceptional heat loss to the atmosphere (up to 50% higher than the climatological mean). This is the first observation of deep convection over such a widespread area. Mixed layer depths exceptionally reached 1700 m in SCF and 1400 m in IRM. The deep thermocline density gradient limited the mixed layer deepening in the Labrador Sea to 1800 m. Potential densities of deep waters were similar in the three basins (27.73-27.74 kg m−3), but warmer by 0.3 °C and saltier by 0.04 in IRM than in LAB and SCF, meaning that each basin formed locally its...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00370/48072/48175.pdf

CROSSROAD. Climatic ROle of Subpolar Slopes: a Regional Observational Array off NewfoundlanD
Provedor de dados: 5
Autores: Desbruyeres, Damien; Mercier, Herle; Thierry, Virginie; Lherminier, Pascale; Gula, Jonathan; Cyr, F; Kieke, D; Holliday, P; Smeed, D.
An observational experimental setup will be proposed to investigate the dynamics and thermodynamics of the deep western boundary current in the “transition zone” of the North Atlantic, around Flemish Cap, Newfoundland. Located between the international RAPID and OSNAP mooring arrays, this region represents a unique choke point for most of the North Atlantic large-scale currents and water masses involved in the Atlantic Meridional Overturning Circulation (AMOC). Horizontal export and latitudinal coherence, water mass transformation and vertical motions, as well as shelf-slope-interior exchanges will be studied with repeat hydrography, moorings, drifting and profiling floats, and gliders. Multidisciplinary approaches are likely, including biogeochemistry and...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00503/61502/65316.pdf

Delayed mode quality control and Oxygen correction of Ovide Argo data. Float WMO 1901209
Provedor de dados: 5
Autores: Lagadec, Catherine; Thierry, Virginie; Cabanes, Cecile.
This report presents the delayed mode analysis of an Argo float. Real time quality control are checked and interesting profiles are plotted. The OW method (objective analysis) is used to detect a conductivity sensor drift and correct it, if any. In this report, are also explained and plotted Oxygen corrections with LOCODOX software. Cruise reference : METEOR 85/2. 2011. PI :  Johannes Karstensen  
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51747/52344.pdf

Numerical study of the annual and semi-annual fluctuations in the deep equatorial Atlantic Ocean
Provedor de dados: 5
Autores: Thierry, Virginie; Treguier, Anne-marie; Mercier, Herle.
Using idealized and realistic high-resolution primitive equation models, we explore the annual and semi-annual period fluctuations in the deep equatorial Atlantic Ocean. The deep seasonal variability derives its energy from the equatorial zonal wind stress component and the wind energy reaches the deep layers by means of vertically propagating Kelvin and Rossby waves. The first meridional mode (l = 1) annual Rossby wave reaches the western boundary while the other Rossby waves directly propagate toward the bottom. A deep Kelvin wave is generated by the reflection of the incoming l = 1 annual Rossby wave at the western boundary. Due to the complexity of the surface layers in the non-linear simulations, one cannot separate the waves generated at the...
Tipo: Text
Palavras-chave: Wind driven circulation; Seasonal variability; Equatorial waves.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-670.pdf