Alain Poisson

Hôpital Saint Joseph

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Nicolas Metzl

Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques

C. Brunet

Hôpital de la Croix-Rousse

Catherine Goyet

Université de Perpignan

Bernard Schauer

Sorbonne Université

Diana Ruiz‐Pino

Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques

Bronte Tilbrook

Commonwealth Scientific and Industrial Research Organisation

Férial Louanchi

École Nationale Supérieure des Sciences de la Mer et de l'Aménagement du Littoral

Catherine Jeandel

Laboratoire d’Études en Géophysique et Océanographie Spatiales

Michel Fiala

Centre National de la Recherche Scientifique

Philippe Pondaven

Institut Universitaire Européen de la Mer

Cooperative Institutions

Centre National de la Recherche Scientifique

Sorbonne Université

Institut de Recherche pour le Développement

Aix-Marseille Université

National Oceanic and Atmospheric Administration

Inserm

Université Paris Cité

NOAA Pacific Marine Environmental Laboratory

Woods Hole Oceanographic Institution

Laboratoire des Sciences du Climat et de l'Environnement

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New determination of carbonic acid dissociation constants in seawater as a function of temperature and salinity

Deep Sea Research Part A Oceanographic Research Papers (1989)

Catherine Goyet Alain Poisson

Carbonic acid

Dissociation constant

Acid dissociation constant

Atmospheric temperature range

10.1016/0198-0149(89)90064-2

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Citations (336)

Biopsies médiastinales à la pince en échoendobronchique : une nouvelle approche en pratique quotidienne

Revue des Maladies Respiratoires (2013)

B. Escarguel G. Thomas C. Tchouhadjian Alexandre Chollat Namy Cyril Foa

10.1016/j.rmr.2012.10.038

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Citations (0)

Anthropogenic CO₂ in the Southern Ocean: Distribution and inventory at the Indian‐Atlantic boundary (World Ocean Circulation Experiment line I6)

Journal of Geophysical Research Atmospheres (2005)

Claire Lo Monaco Nicolas Metzl Alain Poisson C. Brunet Bernard Schauer

The Southern Ocean, where various water masses are formed (mode, intermediate, deep, and bottom waters), has a high potential to absorb anthropogenic CO 2 ( C ant ). However, most data‐based and model estimates indicate low C ant inventories south of 50°S. In order to investigate this paradox, the distribution of C ant is estimated between South Africa and Antarctica (World Ocean Circulation Experiment (WOCE) line I6) based on a back‐calculation technique previously used in the North Atlantic (Körtzinger et al., 1998) and adapted here for application in the Southern Ocean. At midlatitudes (30°–50°S), formation and spreading of mode and intermediate waters results in a deep penetration of C ant (down to 2000 m). South of 50°S, significant concentrations of C ant were estimated in Circumpolar Deep Water (>10 μmol/kg) and Antarctic Bottom Water (AABW) (20–25 μmol/kg). Higher concentrations are detected along the continental slope in AABW presumably formed in Prydz Bay compared to AABW of Weddell Sea origin. The distribution of C ant obtained north of 50°S compares well with previous data‐based and model estimates, but large disagreements are found in the south. However, although transient tracers are not used in the back‐calculation technique employed here, the distribution of C ant is remarkably well correlated with CFCs. We reevaluated the column inventories of C ant for the Southern Ocean and found higher values at high latitudes (70–90 mol/m 2 ) compared to the subtropical/subantarctic region (40–80 mol/m 2 ). These results support the idea that deep and bottom water formation in the Southern Ocean is a key process in the natural sequestration of anthropogenic CO 2 .

Antarctic Bottom Water

Circumpolar deep water

Antarctic Intermediate Water

10.1029/2004jc002643

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Citations (70)

Surface Ocean CO<sub>2</sub> Atlas (SOCAT) gridded data products

Christopher L. Sabine S. Hankin H. Koyuk Dorothée C. E. Bakker Benjamin Pfeil

Abstract. A well documented, publicly available, global data set for surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated by the international marine carbon science community in 2007 with the aim of providing a comprehensive, publicly available, regularly updated, global data set of marine surface CO2, which had been subject to quality control (QC). SOCAT version 1.5 was made public in September 2011 and holds 6.3 million quality controlled surface CO2 data from the global oceans and coastal seas, spanning four decades (1968–2007). The SOCAT gridded data is the second data product to come from the SOCAT project. Recognizing that some groups may have trouble working with millions of measurements, the SOCAT gridded product was generated to provide a robust regularly spaced fCO2 product with minimal spatial and temporal interpolation which should be easier to work with for many applications. Gridded SOCAT is rich with information that has not been fully explored yet, but also contains biases and limitations that the user needs to recognize and address.

Data set

Interpolation

10.5194/essdd-5-781-2012

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Citations (10)

Underway physical oceanography and carbon dioxide measurements during MINERVE cruise Minerve-24

Alain Poisson

Physical oceanography

10.1594/pangaea.813694

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Citations (0)

Conductivity/salinity/temperature relationship of diluted and concentrated standard seawater

IEEE Journal of Oceanic Engineering (1980)

Alain Poisson

The conductivity ratio of diluted and concentrated standard seawater has been measured very accurately in a salinity range from 0 to 42\permil and at temperature from -1 to 30\deg C. All the data have been fitted into polynomials which are compared with previous data. The specific conductance of seawater is deduced and a polynomial for the full range of salinity and temperature is proposed. Data presented in this paper have been used, with those of Dauphinee presented in this issue, to elaborate the new "Practical Salinity Scale 1978."

Atmospheric temperature range

Temperature salinity diagrams

Scale of temperature

10.1109/joe.1980.1145442

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Citations (35)

Gas Transfer Velocities for³He in a Lake at High Wind Speeds

Geophysical monograph (2011)

Philippe Jean‐Baptiste Élise Fourré Alain Poisson

This chapter contains sections titled: Introduction Experimental Design 3He Transfer Velocity Versus Wind Speed Discussion Conclusion

10.1029/gm127p0233

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Citations (1)

Indian Ocean Gas Study

Eos (1986)

Chen‐Tung Arthur Chen Alain Poisson

In July 1984, a joint French‐U.S. team of scientists embarked on the first in a series of research cruises in the southwest Indian Ocean aboard the research/supply vessel Marion Dufresne , which is operated by Terres Australes et Antarctiques Francaises (TAAF). This monthlong cruise marked the debut of a multiyear program aimed at delineating the distribution of anthropogenic CO 2 in the Indian Ocean. Deep waters from the Atlantic, Pacific, and Indian oceans move to the southern ocean and mix there. The resultant relatively homogeneous water becomes the major source of the Antarctic bottom water, which spreads back out into the deep world oceans. Consequently, the chemistry of southern ocean water is a baseline for the deep world oceans. Therefore the carbonate chemistry of the southern ocean water must be learned in order to understand the biogeochemical cycle of carbon from the global point of view. Unfortunately, only a few high‐precision carbonate sampling programs have been conducted in the Indian Ocean section of the southern ocean (we know of only seven such stations south of 30°S). As a result, it is difficult to interpret variations in the carbonate chemistry or to calculate anthropogenic CO 2 in the Indian Ocean because we do not know the characteristic properties of the water near its origin. Furthermore, the scant data in the southern Indian Ocean were all collected in the summer, and it is uncertain whether the summer data are representative of the mainly winter‐formed deep waters.

Antarctic Bottom Water

Biogeochemical Cycle

Circumpolar deep water

Deep ocean water

Ocean chemistry

10.1029/eo067i001p00004-01

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Citations (3)

Nutrients at time series station KERFIX

Catherine Jeandel Diana Ruiz‐Pino Elvis Gjata Alain Poisson C. Brunet

10.1594/pangaea.740045

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