The international at-sea intercomparison of f CO 2 systems during the R/V Meteor Cruise 36/1 in the North Atlantic Ocean

International audience The ‘International Intercomparison Exercise of f CO 2 Systems’ was carried out in 1996 during the R/V Meteor Cruise 36/1 from Bermuda/UK to Gran Canaria/Spain. Nine groups from six countries (Australia, Denmark, France, Germany, Japan, USA) participated in this exercise, bring...

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Published in:Marine Chemistry
Main Authors: Körtzinger, Arne, Mintrop, Ludger, Wallace, Douglas W.R, Johnson, Kenneth M, Neill, Craig, Tilbrook, Bronte, Towler, Philip, Inoue, Hisayuki y, Ishii, Masao, Shaffer, Gary, Torres Saavedra, Rodrigo F, Ohtaki, Eiji, Yamashita, Eiji, Poisson, Alain, Brunet, Christian, Schauer, Bernard, Goyet, Catherine, Eischeid, Greg
Other Authors: School of Psychological Sciences, University of Melbourne, CSIRO Wealth from Oceans National Research Flagship and Antarctic Climate and Ecosystems CRC, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI), Helmholtz-Gemeinschaft = Helmholtz Association, Laboratoire de Physique et Chimie Marines (LPCM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Institut de Modélisation et d'Analyses en géo-environnement et santé - Espace Développement (IMAGES-Espace DEV), UMR 228 Espace-Dev, Espace pour le développement, Institut de Recherche pour le Développement (IRD)-Université de Perpignan Via Domitia (UPVD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Université de Guyane (UG)-Université des Antilles (UA)-Institut de Recherche pour le Développement (IRD)-Université de Perpignan Via Domitia (UPVD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Université de Guyane (UG)-Université des Antilles (UA)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2000
Subjects:
Online Access:https://hal.science/hal-01245605
https://doi.org/10.1016/S0304-4203(00)00080-3
id ftunivguyane:oai:HAL:hal-01245605v1
record_format openpolar
institution Open Polar
collection Université de Guyane: HAL-UG
op_collection_id ftunivguyane
language English
topic Intercomparison
Air–sea exchange
Carbon dioxide partial pressure
Carbon cycle
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
spellingShingle Intercomparison
Air–sea exchange
Carbon dioxide partial pressure
Carbon cycle
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
Körtzinger, Arne
Mintrop, Ludger
Wallace, Douglas W.R
Johnson, Kenneth M
Neill, Craig
Tilbrook, Bronte
Towler, Philip
Inoue, Hisayuki y
Ishii, Masao
Shaffer, Gary
Torres Saavedra, Rodrigo F
Ohtaki, Eiji
Yamashita, Eiji
Poisson, Alain
Brunet, Christian
Schauer, Bernard
Goyet, Catherine
Eischeid, Greg
The international at-sea intercomparison of f CO 2 systems during the R/V Meteor Cruise 36/1 in the North Atlantic Ocean
topic_facet Intercomparison
Air–sea exchange
Carbon dioxide partial pressure
Carbon cycle
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
description International audience The ‘International Intercomparison Exercise of f CO 2 Systems’ was carried out in 1996 during the R/V Meteor Cruise 36/1 from Bermuda/UK to Gran Canaria/Spain. Nine groups from six countries (Australia, Denmark, France, Germany, Japan, USA) participated in this exercise, bringing together 15 participants with seven underway fugacity of carbon dioxide ( f CO 2 ) systems, one discrete f CO 2 system, and two underway pH systems, as well as systems for discrete measurement of total alkalinity and total dissolved inorganic carbon. Here, we compare surface seawater f CO 2 measured synchronously by all participating instruments. A common infrastructure (seawater and calibration gas supply), different quality checks (performance of calibration procedures for CO2, temperature measurements) and a common procedure for calculation of final f CO 2 were provided to reduce the largest possible amount of controllable sources of error. The results show that under such conditions underway measurements of the f CO 2 in surface seawater and overlying air can be made to a high degree of agreement (±1 μatm) with a variety of possible equilibrator and system designs. Also, discrete f CO 2 measurements can be made in good agreement (±3 μatm) with underway f CO 2 data sets. However, even well-designed systems, which are operated without any obvious sign of malfunction, can show significant differences of the order of 10 μatm. Based on our results, no “best choice” for the type of the equilibrator nor specifics on its dimensions and flow rates of seawater and air can be made in regard to the achievable accuracy of the f CO 2 system. Measurements of equilibrator temperature do not seem to be made with the required accuracy resulting in significant errors in f CO 2 results. Calculation of f CO 2 from high-quality total dissolved inorganic carbon (CT) and total alkalinity (AT) measurements does not yield results comparable in accuracy and precision to f CO 2 measurements.
author2 School of Psychological Sciences
University of Melbourne
CSIRO Wealth from Oceans National Research Flagship and Antarctic Climate and Ecosystems CRC
Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI)
Helmholtz-Gemeinschaft = Helmholtz Association
Laboratoire de Physique et Chimie Marines (LPCM)
Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)
Institut de Modélisation et d'Analyses en géo-environnement et santé - Espace Développement (IMAGES-Espace DEV)
UMR 228 Espace-Dev, Espace pour le développement
Institut de Recherche pour le Développement (IRD)-Université de Perpignan Via Domitia (UPVD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Université de Guyane (UG)-Université des Antilles (UA)-Institut de Recherche pour le Développement (IRD)-Université de Perpignan Via Domitia (UPVD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Université de Guyane (UG)-Université des Antilles (UA)
format Article in Journal/Newspaper
author Körtzinger, Arne
Mintrop, Ludger
Wallace, Douglas W.R
Johnson, Kenneth M
Neill, Craig
Tilbrook, Bronte
Towler, Philip
Inoue, Hisayuki y
Ishii, Masao
Shaffer, Gary
Torres Saavedra, Rodrigo F
Ohtaki, Eiji
Yamashita, Eiji
Poisson, Alain
Brunet, Christian
Schauer, Bernard
Goyet, Catherine
Eischeid, Greg
author_facet Körtzinger, Arne
Mintrop, Ludger
Wallace, Douglas W.R
Johnson, Kenneth M
Neill, Craig
Tilbrook, Bronte
Towler, Philip
Inoue, Hisayuki y
Ishii, Masao
Shaffer, Gary
Torres Saavedra, Rodrigo F
Ohtaki, Eiji
Yamashita, Eiji
Poisson, Alain
Brunet, Christian
Schauer, Bernard
Goyet, Catherine
Eischeid, Greg
author_sort Körtzinger, Arne
title The international at-sea intercomparison of f CO 2 systems during the R/V Meteor Cruise 36/1 in the North Atlantic Ocean
title_short The international at-sea intercomparison of f CO 2 systems during the R/V Meteor Cruise 36/1 in the North Atlantic Ocean
title_full The international at-sea intercomparison of f CO 2 systems during the R/V Meteor Cruise 36/1 in the North Atlantic Ocean
title_fullStr The international at-sea intercomparison of f CO 2 systems during the R/V Meteor Cruise 36/1 in the North Atlantic Ocean
title_full_unstemmed The international at-sea intercomparison of f CO 2 systems during the R/V Meteor Cruise 36/1 in the North Atlantic Ocean
title_sort international at-sea intercomparison of f co 2 systems during the r/v meteor cruise 36/1 in the north atlantic ocean
publisher HAL CCSD
publishDate 2000
url https://hal.science/hal-01245605
https://doi.org/10.1016/S0304-4203(00)00080-3
genre North Atlantic
genre_facet North Atlantic
op_source ISSN: 0304-4203
Marine Chemistry
https://hal.science/hal-01245605
Marine Chemistry, 2000, 72 (2-4), pp.171-192. ⟨10.1016/S0304-4203(00)00080-3⟩
op_relation info:eu-repo/semantics/altIdentifier/doi/10.1016/S0304-4203(00)00080-3
hal-01245605
https://hal.science/hal-01245605
doi:10.1016/S0304-4203(00)00080-3
op_doi https://doi.org/10.1016/S0304-4203(00)00080-3
container_title Marine Chemistry
container_volume 72
container_issue 2-4
container_start_page 171
op_container_end_page 192
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spelling ftunivguyane:oai:HAL:hal-01245605v1 2024-09-15T18:24:23+00:00 The international at-sea intercomparison of f CO 2 systems during the R/V Meteor Cruise 36/1 in the North Atlantic Ocean Körtzinger, Arne Mintrop, Ludger Wallace, Douglas W.R Johnson, Kenneth M Neill, Craig Tilbrook, Bronte Towler, Philip Inoue, Hisayuki y Ishii, Masao Shaffer, Gary Torres Saavedra, Rodrigo F Ohtaki, Eiji Yamashita, Eiji Poisson, Alain Brunet, Christian Schauer, Bernard Goyet, Catherine Eischeid, Greg School of Psychological Sciences University of Melbourne CSIRO Wealth from Oceans National Research Flagship and Antarctic Climate and Ecosystems CRC Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association Laboratoire de Physique et Chimie Marines (LPCM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Institut de Modélisation et d'Analyses en géo-environnement et santé - Espace Développement (IMAGES-Espace DEV) UMR 228 Espace-Dev, Espace pour le développement Institut de Recherche pour le Développement (IRD)-Université de Perpignan Via Domitia (UPVD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Université de Guyane (UG)-Université des Antilles (UA)-Institut de Recherche pour le Développement (IRD)-Université de Perpignan Via Domitia (UPVD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Université de Guyane (UG)-Université des Antilles (UA) 2000-12 https://hal.science/hal-01245605 https://doi.org/10.1016/S0304-4203(00)00080-3 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/S0304-4203(00)00080-3 hal-01245605 https://hal.science/hal-01245605 doi:10.1016/S0304-4203(00)00080-3 ISSN: 0304-4203 Marine Chemistry https://hal.science/hal-01245605 Marine Chemistry, 2000, 72 (2-4), pp.171-192. ⟨10.1016/S0304-4203(00)00080-3⟩ Intercomparison Air–sea exchange Carbon dioxide partial pressure Carbon cycle [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2000 ftunivguyane https://doi.org/10.1016/S0304-4203(00)00080-3 2024-07-01T23:34:16Z International audience The ‘International Intercomparison Exercise of f CO 2 Systems’ was carried out in 1996 during the R/V Meteor Cruise 36/1 from Bermuda/UK to Gran Canaria/Spain. Nine groups from six countries (Australia, Denmark, France, Germany, Japan, USA) participated in this exercise, bringing together 15 participants with seven underway fugacity of carbon dioxide ( f CO 2 ) systems, one discrete f CO 2 system, and two underway pH systems, as well as systems for discrete measurement of total alkalinity and total dissolved inorganic carbon. Here, we compare surface seawater f CO 2 measured synchronously by all participating instruments. A common infrastructure (seawater and calibration gas supply), different quality checks (performance of calibration procedures for CO2, temperature measurements) and a common procedure for calculation of final f CO 2 were provided to reduce the largest possible amount of controllable sources of error. The results show that under such conditions underway measurements of the f CO 2 in surface seawater and overlying air can be made to a high degree of agreement (±1 μatm) with a variety of possible equilibrator and system designs. Also, discrete f CO 2 measurements can be made in good agreement (±3 μatm) with underway f CO 2 data sets. However, even well-designed systems, which are operated without any obvious sign of malfunction, can show significant differences of the order of 10 μatm. Based on our results, no “best choice” for the type of the equilibrator nor specifics on its dimensions and flow rates of seawater and air can be made in regard to the achievable accuracy of the f CO 2 system. Measurements of equilibrator temperature do not seem to be made with the required accuracy resulting in significant errors in f CO 2 results. Calculation of f CO 2 from high-quality total dissolved inorganic carbon (CT) and total alkalinity (AT) measurements does not yield results comparable in accuracy and precision to f CO 2 measurements. Article in Journal/Newspaper North Atlantic Université de Guyane: HAL-UG Marine Chemistry 72 2-4 171 192