Articles | Volume 12, issue 1
https://doi.org/10.5194/os-12-319-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/os-12-319-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
25 Feb 2016
Research article |
| 25 Feb 2016
Transient tracer distributions in the Fram Strait in 2012 and inferred anthropogenic carbon content and transport
Tim Stöven
CORRESPONDING AUTHOR
Helmholtz Centre for Ocean Research Kiel, GEOMAR, Kiel, Germany
Toste Tanhua
Helmholtz Centre for Ocean Research Kiel, GEOMAR, Kiel, Germany
Mario Hoppema
Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Wilken-Jon von Appen
Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
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Torsten Kanzow, Rebecca A. McPherson, Claudia Wekerle, Wilken-Jon von Appen, Oliver Huhn, Donald A. Slater, and Andreas Münchow
EGUsphere, https://doi.org/10.5194/egusphere-2026-5184, https://doi.org/10.5194/egusphere-2026-5184, 2026
This preprint is open for discussion and under review for Ocean Science (OS).
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Atlantic Water (AW) delivers heat to glaciers in Greenland, thereby causing melt. We reveal a cooling of the AW entering the world's largest fjord system, Kangertittivaq (East Greenland), after 2018. The cooling is present on the entire Northeast Greenland shelf, driven by cooling in the Nordic Seas. In the fjord, summertime glacier meltwater drives the flow of AW towards the prominent Daugaard Jensen Glacier. The cooling is as strong as the warming of AW at the fjord over the past half century.
Mian Liu and Toste Tanhua
Ocean Sci., 22, 2595–2620, https://doi.org/10.5194/os-22-2595-2026, https://doi.org/10.5194/os-22-2595-2026, 2026
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We measured the age of Atlantic waters using man-made gases and a radioactive isotope. Age increases with depth: young surface waters are about 30 years old, deep Antarctic water reaches 100 years, and the oldest bottom water is roughly 120 years. The western Atlantic is younger and better ventilated than the east. These patterns help estimate deep-sea oxygen use and are key for climate models and marine ecosystems.
Nico Lange, Siv K. Lauvset, Brendan R. Carter, Matthew P. Humphreys, Ryan J. Woosley, Are Olsen, Henry C. Bittig, Alex Kozyr, Marta Álvarez, Kumiko Azetsu-Scott, Susan Becker, Peter J. Brown, Leticia Cotrim da Cunha, Larissa Dias, Mario Hoppema, Masao Ishii, Emil Jeansson, Akihiko Murata, Jens Daniel Müller, Fiz F. Pérez, Carsten Schirnick, Reiner Steinfeldt, Adam Ulfsbo, Anton Velo, and Toste Tanhua
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-496, https://doi.org/10.5194/essd-2026-496, 2026
Preprint under review for ESSD
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GLODAP is a data product for ocean inorganic carbon and related biogeochemical variables measured by the chemical analysis of water bottle samples from scientific cruises. GLODAPv3 is the third version release of GLODAP. The data that are included have been subjected to extensive quality control, including systematic evaluation of systematic cruise differences. This version contains data from 1181 hydrographic cruises covering the world's oceans from 1972 to 2023.
Marta Álvarez, Maribel I. García-Ibáñez, Nico Lange, Alex Kozyr, Antón Velo, Toste Tanhua, Giuseppe Civitarese, Carolina Cantoni, Malek Belgacem, Katrin Schroeder, Rubén Acerbi, Laurent Coppola, Thibaut Wagener, Noelia M. Fajar, Susana Flecha, Michele Giani, Louisa Giannoudi, Elisa F. Guallart, Abed El Rahman Hassoun, Emma I. Huertas, Valeria Ibello, Mehdia A. Keraghel, Férial Louanchi, Anna Luchetta, Fiz F. Pérez, Carsten Schirnick, Ekaterini Souvermezoglou, Lidia Urbini, Montserrat Vidal, and Patrizia Ziveri
Earth Syst. Sci. Data, 18, 4915–4941, https://doi.org/10.5194/essd-18-4915-2026, https://doi.org/10.5194/essd-18-4915-2026, 2026
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CARIMED (CARbon, tracers, and ancillary data In the MEDiterranean Sea) is a high-quality, FAIR (Findability, Accessibility, Interoperability, and Reusability) dataset integrating hydrographic, biogeochemical, and transient tracer data from 46 research cruises (1976–2018) across the Mediterranean Sea. The data underwent rigorous, basin-adapted quality control to remove systematic biases, unifying four decades of fragmented data, delivering two complementary products: the aggregated original cruise data product and the bias-adjusted data synthesis product.
Matthew P. Humphreys, Siv K. Lauvset, Nico Lange, Henry C. Bittig, Brendan R. Carter, Mario Hoppema, Akihiko Murata, Are Olsen, Toste Tanhua, Adam Ulfsbo, Antón Velo, Ryan J. Woosley, Kumiko Azetsu-Scott, Jens D. Müller, and Fiz F. Pérez
EGUsphere, https://doi.org/10.5194/egusphere-2026-3063, https://doi.org/10.5194/egusphere-2026-3063, 2026
This preprint is open for discussion and under review for Ocean Science (OS).
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The Global Ocean Data Analysis Project (GLODAP) collects oceanographic datasets from research cruises that are needed to study the marine carbon cycle. The datasets are quality controlled and adjusted where necessary to ensure consistency between cruises, and published as a global data product. Here, we present a new method for calculating the consistency adjustments called ‘furthest-first inversion’ which has been developed for the newest version of the data product.
Rebecca McPherson, Wilken-Jon von Appen, Laura de Steur, Luise Becker, Monica Ionita, Thomas Krumpen, Gunnar Spreen, and Finn Ole Heukamp
EGUsphere, https://doi.org/10.5194/egusphere-2026-2955, https://doi.org/10.5194/egusphere-2026-2955, 2026
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The East Greenland Current carries cold, fresh water and sea ice from the Arctic toward the North Atlantic. Using seven years of ocean measurements off northeast Greenland, we found that the current occasionally develops a northward component on the continental slope that can persist for weeks. These events are driven by specific wind patterns that reorganise the current and push warm water into the Arctic — a previously unknown heat pathway, which has regional consequences for sea ice.
William A. Nesbitt, Alfonso O. Mucci, Toste Tanhua, Yves Gélinas, Jean-Éric Tremblay, Gwénaëlle Chaillou, Ludovic Pascal, Caroline Fradette, Lennart Gerke, Samuel W. Stevens, Mathilde Jutras, Marjolaine Blais, Martine Lizotte, Michel Starr, and Douglas W. R. Wallace
Earth Syst. Sci. Data, 18, 3609–3634, https://doi.org/10.5194/essd-18-3609-2026, https://doi.org/10.5194/essd-18-3609-2026, 2026
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Over the past few decades, the St. Lawrence Estuary and Gulf have shown clear trends in oxygen depletion and acidification. This data description paper brings together twenty years of measurements from the St. Lawrence Estuary, Gulf of St. Lawrence, and Saguenay Fjord, carefully performing quality control procedures on data, and makes them publicly available. The resulting dataset supports future research, monitoring, and environmental management in this sensitive marine system.
Lennart Gerke, Toste Tanhua, William A. Nesbitt, Samuel W. Stevens, and Douglas W. R. Wallace
Ocean Sci., 22, 1391–1407, https://doi.org/10.5194/os-22-1391-2026, https://doi.org/10.5194/os-22-1391-2026, 2026
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Transient tracer data, measured for the first time in 2022 in the Gulf of St. Lawrence, reveal older deep waters in the east than the west, contrary to expected estuarine circulation, indicating increased influence of older, warmer, less oxygenated North Atlantic Central Water over younger, oxygen-rich Labrador Current Water. While consistent with previous reports of increasing NACW contribution, our results contradict claims of a complete shift to NACW by 2021, showing that LCW still persists.
Annika Oetjens, Wilken-Jon von Appen, Joséphine Anselin, Berenice Ebner, Florian Koch, Kai-Uwe Ludwichowski, Ryan Mole, Joanna Zanker, Emma Young, and Sabine Kasten
EGUsphere, https://doi.org/10.5194/egusphere-2026-1808, https://doi.org/10.5194/egusphere-2026-1808, 2026
Preprint archived
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Phytoplankton blooms near South Georgia are linked to iron-rich waters, but the pathways are unclear. During a research voyage, we measured currents, temperature, and nutrients in two fjords and nearby shelf waters. We found that winds, underwater landscape, and local circulation control how water and nutrients move. Slow exchange within fjords and strong mixing at their mouths suggest these areas can release nutrients that help sustain blooms in the open ocean.
Li-Qing Jiang, Amanda Fay, Jens Daniel Müller, Luke Gregor, Alizée Roobaert, Lydia Keppler, Dustin Carroll, Siv K. Lauvset, Tim DeVries, Judith Hauck, Christian Rödenbeck, Nicolas Metzl, Andrea J. Fassbender, Jean-Pierre Gattuso, Peter Landschützer, Rik Wanninkhof, Christopher Sabine, Simone R. Alin, Mario Hoppema, Are Olsen, Matthew P. Humphreys, Kunal Chakraborty, Ana C. Franco, Kumiko Azetsu-Scott, Dorothee C. E. Bakker, Leticia Barbero, Nicholas R. Bates, Nicole Besemer, Henry C. Bittig, Albert E. Boyd, Daniel Broullón, Wei-Jun Cai, Brendan R. Carter, Thi-Tuyet-Trang Chau, Chen-Tung Arthur Chen, Frédéric Cyr, John E. Dore, Ian Enochs, Richard A. Feely, Hernan E. Garcia, Marion Gehlen, Prasanna Kanti Ghoshal, Lucas Gloege, Melchor González-Dávila, Nicolas Gruber, Debby Ianson, Yosuke Iida, Masao Ishii, Apurva Padamnabh Joshi, Esther Kennedy, Alex Kozyr, Nico Lange, Claire Lo Monaco, Derek P. Manzello, Galen A. McKinley, Natalie M. Monacci, Xose A. Padin, Ana M. Palacio-Castro, Fiz F. Pérez, J. Magdalena Santana-Casiano, Jonathan Sharp, Adrienne Sutton, Jim Swift, Toste Tanhua, Maciej Telszewski, Jens Terhaar, Ruben van Hooidonk, Anton Velo, Andrew J. Watson, Angelicque E. White, Zelun Wu, Liang Xue, Hyelim Yoo, Jiye Zeng, and Guorong Zhong
Earth Syst. Sci. Data, 18, 1405–1462, https://doi.org/10.5194/essd-18-1405-2026, https://doi.org/10.5194/essd-18-1405-2026, 2026
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This review article provides an overview of 68 existing ocean carbonate chemistry data products and data product sets, encompassing a broad range of types, including compilations of cruise datasets, gap-filled observational products, model simulations, and more. It is designed to help researchers identify and access the data products that best support their scientific objectives, thereby facilitating progress in understanding the ocean's changing carbonate chemistry.
Anne-Marie Wefing, Annabel Payne, Marcel Scheiwiller, Christof Vockenhuber, Marcus Christl, Toste Tanhua, and Núria Casacuberta
Ocean Sci., 21, 3311–3340, https://doi.org/10.5194/os-21-3311-2025, https://doi.org/10.5194/os-21-3311-2025, 2025
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Here we used the anthropogenic radionuclides I-129 and U-236 as tracers for Atlantic Water circulation in the Arctic Ocean. New data collected in 2021 allowed to assess the distribution of Atlantic Water and mixing with Pacific-origin water in the surface layer in that year. By using historical tracer data from 2011 to 2021, we looked into temporal changes of the circulation and found slightly older waters in the central Arctic Ocean in 2021 compared to 2015.
William A. Nesbitt, Samuel W. Stevens, Alfonso O. Mucci, Lennart Gerke, Toste Tanhua, Gwénaëlle Chaillou, and Douglas W. R. Wallace
Ocean Sci., 21, 2179–2195, https://doi.org/10.5194/os-21-2179-2025, https://doi.org/10.5194/os-21-2179-2025, 2025
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We combine two decades of oxygen data with new carbon observations and a tracer-informed model to quantify oxygen loss and carbon buildup in the deep waters of the Gulf and Lower St. Lawrence Estuary. We then test a novel idea: reoxygenating these waters with the oxygen produced as a by-product from green-hydrogen production. Our results suggest this could significantly reduce hypoxia, though full recovery would require larger inputs.
Siv K. Lauvset, Nico Lange, Toste Tanhua, Henry C. Bittig, Are Olsen, Alex Kozyr, Marta Álvarez, Kumiko Azetsu-Scott, Peter J. Brown, Brendan R. Carter, Leticia Cotrim da Cunha, Mario Hoppema, Matthew P. Humphreys, Masao Ishii, Emil Jeansson, Akihiko Murata, Jens Daniel Müller, Fiz F. Pérez, Carsten Schirnick, Reiner Steinfeldt, Toru Suzuki, Adam Ulfsbo, Anton Velo, Ryan J. Woosley, and Robert M. Key
Earth Syst. Sci. Data, 16, 2047–2072, https://doi.org/10.5194/essd-16-2047-2024, https://doi.org/10.5194/essd-16-2047-2024, 2024
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GLODAP is a data product for ocean inorganic carbon and related biogeochemical variables measured by the chemical analysis of water bottle samples from scientific cruises. GLODAPv2.2023 is the fifth update of GLODAPv2 from 2016. The data that are included have been subjected to extensive quality controlling, including systematic evaluation of measurement biases. This version contains data from 1108 hydrographic cruises covering the world's oceans from 1972 to 2021.
Nico Lange, Björn Fiedler, Marta Álvarez, Alice Benoit-Cattin, Heather Benway, Pier Luigi Buttigieg, Laurent Coppola, Kim Currie, Susana Flecha, Dana S. Gerlach, Makio Honda, I. Emma Huertas, Siv K. Lauvset, Frank Muller-Karger, Arne Körtzinger, Kevin M. O'Brien, Sólveig R. Ólafsdóttir, Fernando C. Pacheco, Digna Rueda-Roa, Ingunn Skjelvan, Masahide Wakita, Angelicque White, and Toste Tanhua
Earth Syst. Sci. Data, 16, 1901–1931, https://doi.org/10.5194/essd-16-1901-2024, https://doi.org/10.5194/essd-16-1901-2024, 2024
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The Synthesis Product for Ocean Time Series (SPOTS) is a novel achievement expanding and complementing the biogeochemical data landscape by providing consistent and high-quality biogeochemical time-series data from 12 ship-based fixed time-series programs. SPOTS covers multiple unique marine environments and time-series ranges, including data from 1983 to 2021. All in all, it facilitates a variety of applications that benefit from the collective value of biogeochemical time-series observations.
Siv K. Lauvset, Nico Lange, Toste Tanhua, Henry C. Bittig, Are Olsen, Alex Kozyr, Simone Alin, Marta Álvarez, Kumiko Azetsu-Scott, Leticia Barbero, Susan Becker, Peter J. Brown, Brendan R. Carter, Leticia Cotrim da Cunha, Richard A. Feely, Mario Hoppema, Matthew P. Humphreys, Masao Ishii, Emil Jeansson, Li-Qing Jiang, Steve D. Jones, Claire Lo Monaco, Akihiko Murata, Jens Daniel Müller, Fiz F. Pérez, Benjamin Pfeil, Carsten Schirnick, Reiner Steinfeldt, Toru Suzuki, Bronte Tilbrook, Adam Ulfsbo, Anton Velo, Ryan J. Woosley, and Robert M. Key
Earth Syst. Sci. Data, 14, 5543–5572, https://doi.org/10.5194/essd-14-5543-2022, https://doi.org/10.5194/essd-14-5543-2022, 2022
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GLODAP is a data product for ocean inorganic carbon and related biogeochemical variables measured by the chemical analysis of water bottle samples from scientific cruises. GLODAPv2.2022 is the fourth update of GLODAPv2 from 2016. The data that are included have been subjected to extensive quality controlling, including systematic evaluation of measurement biases. This version contains data from 1085 hydrographic cruises covering the world's oceans from 1972 to 2021.
Julian Gutt, Stefanie Arndt, David Keith Alan Barnes, Horst Bornemann, Thomas Brey, Olaf Eisen, Hauke Flores, Huw Griffiths, Christian Haas, Stefan Hain, Tore Hattermann, Christoph Held, Mario Hoppema, Enrique Isla, Markus Janout, Céline Le Bohec, Heike Link, Felix Christopher Mark, Sebastien Moreau, Scarlett Trimborn, Ilse van Opzeeland, Hans-Otto Pörtner, Fokje Schaafsma, Katharina Teschke, Sandra Tippenhauer, Anton Van de Putte, Mia Wege, Daniel Zitterbart, and Dieter Piepenburg
Biogeosciences, 19, 5313–5342, https://doi.org/10.5194/bg-19-5313-2022, https://doi.org/10.5194/bg-19-5313-2022, 2022
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Long-term ecological observations are key to assess, understand and predict impacts of environmental change on biotas. We present a multidisciplinary framework for such largely lacking investigations in the East Antarctic Southern Ocean, combined with case studies, experimental and modelling work. As climate change is still minor here but is projected to start soon, the timely implementation of this framework provides the unique opportunity to document its ecological impacts from the very onset.
Pierre Friedlingstein, Michael O'Sullivan, Matthew W. Jones, Robbie M. Andrew, Luke Gregor, Judith Hauck, Corinne Le Quéré, Ingrid T. Luijkx, Are Olsen, Glen P. Peters, Wouter Peters, Julia Pongratz, Clemens Schwingshackl, Stephen Sitch, Josep G. Canadell, Philippe Ciais, Robert B. Jackson, Simone R. Alin, Ramdane Alkama, Almut Arneth, Vivek K. Arora, Nicholas R. Bates, Meike Becker, Nicolas Bellouin, Henry C. Bittig, Laurent Bopp, Frédéric Chevallier, Louise P. Chini, Margot Cronin, Wiley Evans, Stefanie Falk, Richard A. Feely, Thomas Gasser, Marion Gehlen, Thanos Gkritzalis, Lucas Gloege, Giacomo Grassi, Nicolas Gruber, Özgür Gürses, Ian Harris, Matthew Hefner, Richard A. Houghton, George C. Hurtt, Yosuke Iida, Tatiana Ilyina, Atul K. Jain, Annika Jersild, Koji Kadono, Etsushi Kato, Daniel Kennedy, Kees Klein Goldewijk, Jürgen Knauer, Jan Ivar Korsbakken, Peter Landschützer, Nathalie Lefèvre, Keith Lindsay, Junjie Liu, Zhu Liu, Gregg Marland, Nicolas Mayot, Matthew J. McGrath, Nicolas Metzl, Natalie M. Monacci, David R. Munro, Shin-Ichiro Nakaoka, Yosuke Niwa, Kevin O'Brien, Tsuneo Ono, Paul I. Palmer, Naiqing Pan, Denis Pierrot, Katie Pocock, Benjamin Poulter, Laure Resplandy, Eddy Robertson, Christian Rödenbeck, Carmen Rodriguez, Thais M. Rosan, Jörg Schwinger, Roland Séférian, Jamie D. Shutler, Ingunn Skjelvan, Tobias Steinhoff, Qing Sun, Adrienne J. Sutton, Colm Sweeney, Shintaro Takao, Toste Tanhua, Pieter P. Tans, Xiangjun Tian, Hanqin Tian, Bronte Tilbrook, Hiroyuki Tsujino, Francesco Tubiello, Guido R. van der Werf, Anthony P. Walker, Rik Wanninkhof, Chris Whitehead, Anna Willstrand Wranne, Rebecca Wright, Wenping Yuan, Chao Yue, Xu Yue, Sönke Zaehle, Jiye Zeng, and Bo Zheng
Earth Syst. Sci. Data, 14, 4811–4900, https://doi.org/10.5194/essd-14-4811-2022, https://doi.org/10.5194/essd-14-4811-2022, 2022
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The Global Carbon Budget 2022 describes the datasets and methodology used to quantify the anthropogenic emissions of carbon dioxide (CO2) and their partitioning among the atmosphere, the land ecosystems, and the ocean. These living datasets are updated every year to provide the highest transparency and traceability in the reporting of CO2, the key driver of climate change.
Rainer Kiko, Marc Picheral, David Antoine, Marcel Babin, Léo Berline, Tristan Biard, Emmanuel Boss, Peter Brandt, Francois Carlotti, Svenja Christiansen, Laurent Coppola, Leandro de la Cruz, Emilie Diamond-Riquier, Xavier Durrieu de Madron, Amanda Elineau, Gabriel Gorsky, Lionel Guidi, Helena Hauss, Jean-Olivier Irisson, Lee Karp-Boss, Johannes Karstensen, Dong-gyun Kim, Rachel M. Lekanoff, Fabien Lombard, Rubens M. Lopes, Claudie Marec, Andrew M. P. McDonnell, Daniela Niemeyer, Margaux Noyon, Stephanie H. O'Daly, Mark D. Ohman, Jessica L. Pretty, Andreas Rogge, Sarah Searson, Masashi Shibata, Yuji Tanaka, Toste Tanhua, Jan Taucher, Emilia Trudnowska, Jessica S. Turner, Anya Waite, and Lars Stemmann
Earth Syst. Sci. Data, 14, 4315–4337, https://doi.org/10.5194/essd-14-4315-2022, https://doi.org/10.5194/essd-14-4315-2022, 2022
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The term
marine particlescomprises detrital aggregates; fecal pellets; bacterioplankton, phytoplankton and zooplankton; and even fish. Here, we present a global dataset that contains 8805 vertical particle size distribution profiles obtained with Underwater Vision Profiler 5 (UVP5) camera systems. These data are valuable to the scientific community, as they can be used to constrain important biogeochemical processes in the ocean, such as the flux of carbon to the deep sea.
Elise S. Droste, Mario Hoppema, Melchor González-Dávila, Juana Magdalena Santana-Casiano, Bastien Y. Queste, Giorgio Dall'Olmo, Hugh J. Venables, Gerd Rohardt, Sharyn Ossebaar, Daniel Schuller, Sunke Trace-Kleeberg, and Dorothee C. E. Bakker
Ocean Sci., 18, 1293–1320, https://doi.org/10.5194/os-18-1293-2022, https://doi.org/10.5194/os-18-1293-2022, 2022
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Tides affect the marine carbonate chemistry of a coastal polynya neighbouring the Ekström Ice Shelf by movement of seawater with different physical and biogeochemical properties. The result is that the coastal polynya in the summer can switch between being a sink or a source of CO2 multiple times a day. We encourage consideration of tides when collecting in polar coastal regions to account for tide-driven variability and to avoid overestimations or underestimations of air–sea CO2 exchange.
Hein J. W. de Baar, Mario Hoppema, and Elizabeth M. Jones
EGUsphere, https://doi.org/10.5194/egusphere-2022-676, https://doi.org/10.5194/egusphere-2022-676, 2022
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There is confusion in the literature on interactions of dissolved phosphate and sulphate with the alkalinity of seawater. These do play a minor role in the titration to determine alkalinity. However, a perceived biological role of phosphate and sulphate has been suggested in the value of Oceanic Alkalinity. We think this is mistaken. Some other minor issues additionally have led to confusion on the exact description of Alkalinity. We treat those against a theoretical and empirical background.
Pierre Friedlingstein, Matthew W. Jones, Michael O'Sullivan, Robbie M. Andrew, Dorothee C. E. Bakker, Judith Hauck, Corinne Le Quéré, Glen P. Peters, Wouter Peters, Julia Pongratz, Stephen Sitch, Josep G. Canadell, Philippe Ciais, Rob B. Jackson, Simone R. Alin, Peter Anthoni, Nicholas R. Bates, Meike Becker, Nicolas Bellouin, Laurent Bopp, Thi Tuyet Trang Chau, Frédéric Chevallier, Louise P. Chini, Margot Cronin, Kim I. Currie, Bertrand Decharme, Laique M. Djeutchouang, Xinyu Dou, Wiley Evans, Richard A. Feely, Liang Feng, Thomas Gasser, Dennis Gilfillan, Thanos Gkritzalis, Giacomo Grassi, Luke Gregor, Nicolas Gruber, Özgür Gürses, Ian Harris, Richard A. Houghton, George C. Hurtt, Yosuke Iida, Tatiana Ilyina, Ingrid T. Luijkx, Atul Jain, Steve D. Jones, Etsushi Kato, Daniel Kennedy, Kees Klein Goldewijk, Jürgen Knauer, Jan Ivar Korsbakken, Arne Körtzinger, Peter Landschützer, Siv K. Lauvset, Nathalie Lefèvre, Sebastian Lienert, Junjie Liu, Gregg Marland, Patrick C. McGuire, Joe R. Melton, David R. Munro, Julia E. M. S. Nabel, Shin-Ichiro Nakaoka, Yosuke Niwa, Tsuneo Ono, Denis Pierrot, Benjamin Poulter, Gregor Rehder, Laure Resplandy, Eddy Robertson, Christian Rödenbeck, Thais M. Rosan, Jörg Schwinger, Clemens Schwingshackl, Roland Séférian, Adrienne J. Sutton, Colm Sweeney, Toste Tanhua, Pieter P. Tans, Hanqin Tian, Bronte Tilbrook, Francesco Tubiello, Guido R. van der Werf, Nicolas Vuichard, Chisato Wada, Rik Wanninkhof, Andrew J. Watson, David Willis, Andrew J. Wiltshire, Wenping Yuan, Chao Yue, Xu Yue, Sönke Zaehle, and Jiye Zeng
Earth Syst. Sci. Data, 14, 1917–2005, https://doi.org/10.5194/essd-14-1917-2022, https://doi.org/10.5194/essd-14-1917-2022, 2022
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The Global Carbon Budget 2021 describes the data sets and methodology used to quantify the emissions of carbon dioxide and their partitioning among the atmosphere, land, and ocean. These living data are updated every year to provide the highest transparency and traceability in the reporting of CO2, the key driver of climate change.
Siv K. Lauvset, Nico Lange, Toste Tanhua, Henry C. Bittig, Are Olsen, Alex Kozyr, Marta Álvarez, Susan Becker, Peter J. Brown, Brendan R. Carter, Leticia Cotrim da Cunha, Richard A. Feely, Steven van Heuven, Mario Hoppema, Masao Ishii, Emil Jeansson, Sara Jutterström, Steve D. Jones, Maren K. Karlsen, Claire Lo Monaco, Patrick Michaelis, Akihiko Murata, Fiz F. Pérez, Benjamin Pfeil, Carsten Schirnick, Reiner Steinfeldt, Toru Suzuki, Bronte Tilbrook, Anton Velo, Rik Wanninkhof, Ryan J. Woosley, and Robert M. Key
Earth Syst. Sci. Data, 13, 5565–5589, https://doi.org/10.5194/essd-13-5565-2021, https://doi.org/10.5194/essd-13-5565-2021, 2021
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GLODAP is a data product for ocean inorganic carbon and related biogeochemical variables measured by the chemical analysis of water bottle samples from scientific cruises. GLODAPv2.2021 is the third update of GLODAPv2 from 2016. The data that are included have been subjected to extensive quality control, including systematic evaluation of measurement biases. This version contains data from 989 hydrographic cruises covering the world's oceans from 1972 to 2020.
Cited articles
Beszczynska-Möller, A.: The expedition of the research vessel Polarstern
to
the Arctic in 2012 (ARK-XXVII/1), Rep. Pol. Mar. Res., 660,
1–78, 2013.
Beszczynska-Möller, A. and Wisotzki, A.: Physical oceanography during
POLARSTERN cruise ARK-XXVII/1, Alfred Wegener Institute, Helmholtz Center for
Polar and Marine Research, Bremerhaven, https://doi.org/10.1594/PANGAEA.801791, 2012.
Beszczynska-Möller, A., Fahrbach, E., Schauer, U., and Hansen, E.:
Variability in Atlantic water temperature and transport at the entrance to
the Arctic Ocean, 1997-2010, ICES J. Mar. Sci., 69, 852–863, 2012.
Bullister, J. L. and Wisegarver, D. P.: The shipboard analysis of trace
levels
of sulfur hexafluoride, chlorofluorocarbon-11 and chlorofluorocarbon-12 in
seawater, Deep-Sea Res. Pt. I, 55, 1063–1074, 2008.
de Steur, L., Hansen, E., Mauritzen, C., Beszczynska-Möller, A., and
Fahrbach, E.: Impact of recirculation on the East Greenland Current in Fram
Strait: Results from moored current meter measurements between 1997 and 2009,
Deep-Sea Res., 92, 26–40, 2014.
Dickson, A., Sabine, C., and Chrisitan, J.: Guide to Best Practices for Ocean
CO2 Measurements, 2007.
Eakins, B. W. and Sharman, G. F.: Volumes of the World's Ocean from ETOPO1,
NOAA National Geophysical Data Center,
http://ngdc.noaa.gov/mgg/global/etopo1_ocean_volumes.html,
2010.
Fahrbach, E., Meincke, J., Österhus, S., Rohardt, G., Schauer, U.,
Tverberg, V., and Verduin, J.: Direct measurements of volume transports
through Fram Strait, Polar Res., 20, 217–224, 2001.
Hall, T. M. and Plumb, R. A.: Age as a diagnostic of stratospheric transport,
J. Geophys. Res., 99, 1059–1070, 1994.
Huhn, O., Rhein, M., Hoppema, M., and van Heuven, S.: Decline of deep and
bottom water ventilation and slowing down of anthropogenic carbon storage in
the Weddell Sea, 1984–2011, Deep-Sea Res. Pt. I, 76, 66–84,
2013.
Jeansson, E., Olsen, A., Eldevik, T., Skjelvan, I., Omar, A. M., Lauvset,
S. K., Nilsen, J. E., Bellerby, R. G. J., Johannessen, T., and Falck, E.: The
Nordic Seas carbon budget: Sources, sinks, and uncertainties, Glob.
Biogeochem. Cy., 25, 4, https://doi.org/10.1029/2010GB003961, 2011.
Johnson, K. M., Wills, K. D., Butler, D. B., Johnson, W. K., and Wong, C. S.:
Coulometric total carbon dioxide analysis for marine studies: maximizing the
performance of an automated gas extraction system and coulometric detector,
Mar. Chem., 44, 167–187, 1993.
Johnson, K. M., Dickson, A. G., Eischeid, G., Goyet, C., Guenther, P., Key,
R. M., Millero, F. J., Purkerson, D., Sabine, C. L., Schottle, R. G.,
Wallace, D. W. R., Wilke, R. J., and Winn, C. D.: Coulometric total carbon
dioxide analysis for marine studies: assessment of the quality of total
inorganic carbon measurements made during the US Indian Ocean CO2 Survey
1994–1996, Mar. Chem., 63, 21–37, 1998.
Jutterström, S. and Jeansson, E.: Anthropogenic carbon in the East
Greenland Current, Prog. Oceanogr., 78, 29–36, 2008.
Karcher, M., Smith, J. N., Kauker, F., Gerdes, R., and Smethie, W. M.: Recent
changes in Arctic Ocean circulation revealed by iodine-129 observations and
modeling, J. Geophys. Res. Oceans, 117, C8, https://doi.org/10.1029/2011JC007513, 2012.
Kurtz, N. T., Markus, T., Farrell, S. L., Worthen, D. L., and Boisvert,
L. N.:
Observations of recent Arctic sea ice volume loss and its impact on
ocean-atmosphere energy exchange and ice production, J. Geophys. Res.-Oceans,
116, C4, https://doi.org/10.1029/2010JC006235, 2011.
Kwok, R., Cunningham, G. F., Wensnahan, M., Rigor, I., Zwally, H. J., and Yi,
D.: Thinning and volume loss of the Arctic Ocean sea ice cover: 2003–2008, J.
Geophys. Res.-Oceans, 114, C7, https://doi.org/10.1029/2009JC005312, 2009.
Law, C. S., Watson, A. J., and Liddicoat, M. I.: Automated vacuum analysis of
sulphur hexafluoride in seawater: derivation of the atmospheric trend
(1970–1993) and potential as a transient tracer, Mar. Chem., 48, 57–69,
1994.
Lee, K., Tong, L. T., Millero, F. J., Sabine, C. L., Dickson, A. G., Goyet,
C.,
Park, G., Wanninkhof, R., Feely, R. A., and Key, R. M.: Global relationships
of total alkalinity with salinity and temperature in surface waters of the
worlds oceans, Geophys. Res. Lett., 33, 19, https://doi.org/10.1029/2006GL027207, 2006.
Liang, J.-H., Deutsch, C., McWilliams, J. C., Baschek, B., Sullivan, P. P.,
and
Chiba, D.: Parameterizing bubble-mediated air-sea gas exchange and its effect
on ocean ventilation, Global Biogeochem. Cy., 27, 894–905, 2013.
MacGilchrist, G. A., Naveira Garabato, A. C., Tsubouchi, T., Bacon, S.,
Torres-Valdes, S., and Azetsu-Scott, K.: The Arctic Ocean carbon sink,
Deep-Sea Res. Pt. I, 86, 39–55, 2014.
Marnela, M., Rudels, B., Olsson, K. A., Anderson, L. G., Jeansson, E.,
Torres,
D. J., Messias, M.-J., Swift, J. H., and Watson, A. J.: Transports of Nordic
Seas water masses and excess SF6 through Fram Strait to the Arctic Ocean,
Prog. Oceanogr., 78, 1, https://doi.org/10.1016/j.pocean.2007.06.004., 2007.
Marnela, M., Rudels, B., Houssais, M.-N., Beszczynska-Möller, A., and
Eriksson, P. B.: Recirculation in the Fram Strait and transports of water in
and north of the Fram Strait derived from CTD data, Ocean Sci., 9, 499–519,
https://doi.org/10.5194/os-9-499-2013, 2013.
Mintrop, L., Pérez, F. F., González-Dávila, M., Santana-Casiano,
J. M., and Körtzinger, A.: Alkalinity determination by potentiometry:
Intercalibration using three different methods, Cienc. Mar., 26, 23–37,
2000.
Olsson, K. A., Jeansson, E., Tanhua, T., and Gascard, J.-C.: The East
Greenland
Current studied with CFCs and released sulphur hexafluoride, J. Mar. Sys.,
55, 77–95, 2005.
Polyakov, I. V., Beszczynska, A., Carmack, E. C., Dmitrenko, I. A., Fahrbach,
E., Frolov, I. E., Gerdes, R., Hansen, E., Holfort, J., Ivanov, V. V.,
Johnson, M. A., Karcher, M., Kauker, F., Morison, J., Orvik, K. A., Schauer,
U., Simmons, H. L., Skagseth, Ø., Sokolov, V. T., Steele, M., Timokhov,
L. A., Walsh, D., and Walsh, J. E.: One more step toward a warmer Arctic,
Geophys. Res. Lett., 32, 17, https://doi.org/10.1029/2005GL023740, 2005.
Rudels, B., Meyer, R., Fahrbach, E., Ivanov, V. V., Österhus, S.,
Quadfasel, D., Schauer, U., Tverberg, V., and Woodgate, R. A.: Water mass
distribution in Fram Strait and over the Yermak Plateau in summer 1997,
Ann. Geophys., 18, 687–705, 2000.
Rudels, B., Björk, G., Nilsson, J., Winsor, P., Lake, I., and Nohr, C.:
The
interaction between waters from the Arctic Ocean and the Nordic Seas north of
Fram Strait and along the East Greenland Current: results from the Arctic
Ocean-02 Oden expedition, J. Mar. Sys., 55, 1–30, 2005.
Rudels, B., Marnela, M., and Eriksson, P.: Constraints on estimating mass,
heat
and freshwater transports in the Arctic Ocean: An exercise, in:
Arctic-Subarctic Ocean Fluxes, edited by: Dickson, R., Meincke, J., and
Rhines, P., Springer Netherlands, https://doi.org/10.1007/978-1-4020-6774-7_14, 315–341, 2008.
Rudels, B., Korhonen, M., Budéus, G., Beszczynska-Möller, A.,
Schauer,
U., Nummelin, A., Quadfasel, D., and Valdimarsson, H.: The East Greenland
Current and its impacts on the Nordic Seas: observed trends in the past
decade, ICES J. Mar. Sci., 69, 841–851, 2012.
Schauer, U. and Beszczynska-Möller, A.: Problems with estimation and
interpretation of oceanic heat transport – conceptual remarks for the case of
Fram Strait in the Arctic Ocean, Ocean Sci., 5, 487–494, https://doi.org/10.5194/os-5-487-2009, 2009.
Schauer, U., Fahrbach, E., Østerhus, S., and Rohardt, G.: Arctic warming
through the Fram Strait: Oceanic heat transport from 3 years of measurements,
J. Geophys. Res.-Oceans, 109, C6, https://doi.org/10.1029/2003JC001823, 2004.
Schauer, U., Beszczynska-Möller, A., Walczowski, W., Fahrbach, E.,
Piechura, J., and Hansen, E.: Variation of Measured Heat Flow Through the
Fram Strait Between 1997 and 2006, in: Arctic-Subarctic Ocean Fluxes, edited
by: Dickson, R., Meincke, J., and Rhines, P., Springer
Netherlands, https://doi.org/10.1007/978-1-4020-6774-7_4, 65–85, 2008.
Schneider, A., Tanhua, T., Körtzinger, A., and Wallace, D. W. R.: High
anthropogenic carbon content in the eastern Mediterranean, J. Geophys. Res.,
115, C12, https://doi.org/10.1029/2010JC006171, 2010.
Schneider, A., Tanhua, T., Roether, W., and Steinfeldt, R.: Changes in
ventilation of the Mediterranean Sea during the past 25 year, Ocean Sci., 10,
1–16, https://doi.org/10.5194/os-10-1-2014, 2014.
Shao, A. E., Mecking, S., Thompson, L., and Sonnerup, R. E.: Mixed layer
saturations of CFC-11, CFC-12, and SF6 in a global isopycnal model, J.
Geophys. Res.-Oceans, 118, 4978–4988, 2013.
Sonnerup, R. E., Mecking, S., and Bullister, J. L.: Transit time
distributions
and oxygen utilization rates in the Northeast Pacific Ocean from
chlorofluorocarbons and sulfur hexafluoride, Deep-Sea Res. Pt. I, 72, 61–71,
2013.
Stöven, T. and Tanhua, T.: Ventilation of the Mediterranean Sea
constrained
by multiple transient tracer measurements, Ocean Sci., 10, 439–457, https://doi.org/10.5194/os-10-439-2014, 2014.
Stöven, T., Tanhua, T., Hoppema, M., and Bullister, J. L.: Perspectives
of
transient tracer applications and limiting cases, Ocean Sci., 11, 699–718,
https://doi.org/10.5194/os-11-699-2015, 2015.
Stroeve, J., Serreze, M., Drobot, S., Gearheard, S., Holland, M., Maslanik,
J.,
Meier, W., and Scambos, T.: Arctic Sea Ice Extent Plummets in 2007, Eos,
T. Am. Geophys. Un., 89, 13–14, 2008.
Tanhua, T., Bulsiewicz, K., and Rhein, M.: Spreading of Overflow Water from
the
Greenland to the Labrador Sea, Geophys. Res. Lett., 32, 10, https://doi.org/10.1029/2005GL0227700, 2005.
Tanhua, T., Waugh, D. W., and Wallace, D. W. R.: Use of SF6 to estimate
anthropogenic CO2 in the upper ocean, J. Geophys. Res., 113, 2156–2202,
2008.
Tans, P. and Keeling, R.: Full Mauna Loa CO2 record, NOAA/ESRL,
www.esrl.noaa.gov/gmd/ccgg/trends/, 2015.
Tsubouchi, T., Bacon, S., Naveira Garabato, A. C., Aksenov, Y., Laxon,
S. W.,
Fahrbach, E., Beszczynska-Möller, A., Hansen, E., Lee, C. M., and
Ingvaldsen, R. B.: The Arctic Ocean in summer: A quasi-synoptic inverse
estimate of boundary fluxes and water mass transformation, J. Geophys.
Res.-Oceans, 117, C1, https://doi.org/10.1029/2011JC007174, 2012.
van Heuven, S., Pierrot, D., Rae, J. W. B., Lewis, E., and Wallace, D. W. R.:
MATLAB Program Developed for CO2 System Calculations. ORNL/CDIAC-105b.
Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, US
Department of Energy, Oak Ridge, Tennessee, https://doi.org/10.3334/CDIAC/otg.CO2SYS_MATLAB_v1.1,
2011.
Vazquez-Rodriguez, M., Padin, X. A., Pardo, P. C., Rios, A. F., and Perez,
F. F.: The subsurface layer reference to calculate preformed alkalinity and
air-sea CO2 disequilibrium in the Atlantic Ocean, J. Mar. Sys., 94,
52–63, 2012.
Vellinga, M., Dickson, B., and Curry, R.: The Changing View on How Freshwater
Impacts the Atlantic Meridional Overturning Circulation, in: Arctic-Subarctic
Ocean Fluxes, edited by: Dickson, R., Meincke, J., and Rhines, P., Springer Netherlands, https://doi.org/10.1007/978-1-4020-6774-7_13, pp.
289–313, 2008.
von Appen, W.-J., Schauer, U., Hattermann, T., and Beszczynska-Möller,
A.: Seasonal cycle of mesoscale instability of the West Spitsbergen Current,
J. Phys. Oceanogr., in revision, 2015a.
von Appen, W.-J., Schauer, U., Somavilla, R., Bauerfeind, E., and
Beszczynska-Möller, A.: Exchange of warming deep waters across Fram
Strait, Deep-Sea Res., 103, 86–100,
2015b.
Wadley, M. R. and Bigg, G. R.: Impact of flow through the Canadian
Archipelago
and Bering Strait on the North Atlantic and Arctic circulation: An ocean
modelling study, Quart. J. Roy. Meteorol. Soc., 128,
2187–2203, 2002.
Watson, A. J., Messias, M., Fogelqvist, E., van Scoy, K. A., Johannessen,
T.,
Oliver, K. I. C., Stevens, D. P., Rey, F., Tanhua, T., Olsson, K. A., Carse,
F., Simonsen, K., Ledwell, J. R., Jansen, E., Cooper, D. J., Kruepke, J. A.,
and Guilyardi, E.: Mixing and convection in the Greenland Sea from a
tracer-release experiment, Nature, 401, 902–904, 1999.
Waugh, D. W., Vollmer, M. K., Weiss, R. F., Haine, T. W. N., and Hall, T. M.:
Transit time distributions in Lake Issyk-Kul, Geophys. Res. Lett., 29,
84–1–84–4, 2002.
Waugh, D. W., Hall, T. M., and Haine, T. W. N.: Relationships among tracer
ages, J. Geophys. Res., 108, C5, https://doi.org/10.1029/2002JC001325, 2003.
Waugh, D. W., Haine, T. W. N., and Hall, T. M.: Transport times and
anthropogenic carbon in the subpolar North Atlantic Ocean, Deep-Sea Res. Pt. I,
51, 1475–1491, 2004.
Waugh, D. W., Hall, T. M., McNeil, B. I., Key, R., and Matear, R. J.:
Anthropogenic CO2 in the oceans estimated using transit time
distributions, Tellus B, 58, 376–389, 2006.
Short summary
The article describes transient tracer distributions of CFC-12 and SF6 in the Fram Strait in 2012. The SF6 excess and the anthropogenic carbon content in this area was estimated assuming a standard parameterization of the inverse-Gaussian–transit-time distribution. Hydrographic data were obtained along a mooring array at 78°50’N and a mean velocity field was used for flux estimates.
The article describes transient tracer distributions of CFC-12 and SF6 in the Fram Strait in...
