Author: "Steinhoff, Tobias" - Searchworks@Jio Institute Digital Library Search Results

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128 results on '"Steinhoff, Tobias"'

1. Standards and Open Access are the ICOS Pillars: Reply to 'Comments on 'The Integrated Carbon Observation System in Europe''

Author: Papale, Dario, Heiskanen, Jouni, Brummer, Christian, Buchmann, Nina, Calfapietra, Carlo, Carrara, Arnaud, Chen, Huilin, Gielen, Bert, Gkritzalis, Thanos, Hammer, Samuel, Hartman, Susan, Herbst, Mathias, Janssens, Ivan A., Jordan, Armin, Juurola, Eija, Karstens, Ute, Kasurinen, Ville, Kruijt, Bart, Lankreijer, Harry, Levin, Ingeborg, Linderson, Maj-Lena, Loustau, Denis, Merbold, Lutz, Myhre, Cathrine Lund, Pavelka, Marian, Pilegaard, Kim, Ramonet, Michel, Rebmann, Corinna, Rinne, Janne, Rivier, Leonard, Saltikoff, Elena, Sanders, Richard, Steinbacher, Martin, Steinhoff, Tobias, Watson, Andrew, Vermeulen, Alex T., Vesala, Timo, Vitkova, Gabriela, and Kutsch, Werner
Subjects: Business, Earth sciences
Abstract: In his comment (Kowalski 2023) on our recent publication (Heiskanen et al. 2022) where we present the Integrated Carbon Observation System (ICOS) research infrastructure, Andrew Kowalski introduces three important and, [...]
Published: 2023
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2. A model for community-driven development of best practices: the Ocean Observatories Initiative Biogeochemical Sensor Data Best Practices and User Guide

Author: Palevsky, Hilary I., primary, Clayton, Sophie, additional, Benway, Heather, additional, Maheigan, Mairead, additional, Atamanchuk, Dariia, additional, Battisti, Roman, additional, Batryn, Jennifer, additional, Bourbonnais, Annie, additional, Briggs, Ellen M., additional, Carvalho, Filipa, additional, Chase, Alison P., additional, Eveleth, Rachel, additional, Fatland, Rob, additional, Fogaren, Kristen E., additional, Fram, Jonathan Peter, additional, Hartman, Susan E., additional, Le Bras, Isabela, additional, Manning, Cara C. M., additional, Needoba, Joseph A., additional, Neely, Merrie Beth, additional, Oliver, Hilde, additional, Reed, Andrew C., additional, Rheuban, Jennie E., additional, Schallenberg, Christina, additional, Walsh, Ian, additional, Wingard, Christopher, additional, Bauer, Kohen, additional, Chen, Baoshan, additional, Cuevas, Jose, additional, Flecha, Susana, additional, Horwith, Micah, additional, Melendez, Melissa, additional, Menz, Tyler, additional, Rivero-Calle, Sara, additional, Roden, Nicholas P., additional, Steinhoff, Tobias, additional, Trucco-Pignata, Pablo Nicolás, additional, Vardaro, Michael F., additional, and Yoder, Meg, additional
Published: 2024
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3. Responses at various levels of ecological hierarchy indicate acclimation to sequential sublethal heatwaves in a temperate benthic ecosystem.

Author: Ito, Maysa, Guy-Haim, Tamar, Sawall, Yvonne, Franz, Markus, Buchholz, Björn, Hansen, Thomas, Neitzel, Philipp, Pansch, Christian, Steinhoff, Tobias, Wahl, Martin, Weinberger, Florian, and Scotti, Marco
Subjects: MARINE heatwaves, HEAT waves (Meteorology), ENRICHED foods, FOOD chains, SPRING
Abstract: Marine heatwaves have caused massive mortality in coastal benthic ecosystems, altering community composition. Here, we aim to understand the effects of single and sequential sublethal heatwaves in a temperate benthic ecosystem, investigating their disturbance on various levels of ecological hierarchy, i.e. individual physiology, trophic groups' biomass and ecosystem carbon fluxes. To do so, we performed a near-natural experiment using outdoor benthic mesocosms along spring/summer, where communities were exposed to different thermal regimes: without heatwaves (0HW), with one heatwave (1HW) and with three heatwaves (3HWs). Gastropods were negatively impacted by one single heatwave treatment, but the exposure to three sequential heatwaves caused no response, indicating ecological stress memory. The magnitude of ecosystem carbon fluxes mostly decreased after 1HW, with a marked negative impact on mesograzers' feeding, while the overall intensity of carbon fluxes increased after 3HWs. Consumers' acclimation after the exposure to sequential heatwaves increased grazing activity, representing a threat for the macroalgae biomass. The evaluation of physiological responses and ecological interactions is crucial to interpret variations in community composition and to detect early signs of stress. Our results reveal the spread of heatwave effects along the ecological hierarchical levels, helping to predict the trajectories of ecosystem development. This article is part of the theme issue 'Connected interactions: enriching food web research by spatial and social interactions'. [ABSTRACT FROM AUTHOR]
Published: 2024
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4. Technical note: Assessment of float pH data quality control methods – a case study in the subpolar northwest Atlantic Ocean

Author: Wimart-Rousseau, Cathy, primary, Steinhoff, Tobias, additional, Klein, Birgit, additional, Bittig, Henry, additional, and Körtzinger, Arne, additional
Published: 2024
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5. Technical note: Enhancement of float-pH data quality control methods: A study case in the Subpolar Northwestern Atlantic region

Author: Wimart-Rousseau, Cathy, primary, Steinhoff, Tobias, additional, Klein, Birgit, additional, Bittig, Henry, additional, and Körtzinger, Arne, additional
Published: 2023
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6. Developing an Observing Air–Sea Interactions Strategy (OASIS) for the global ocean

Author: Cronin, M F, Swart, S, Marandino, Christa A., Anderson, C, Browne, P, Chen, S, Joubert, W R, Schuster, U, Venkatesan, R, Addey, C I, Alves, O, Ardhuin, F, Battle, S, Bourassa, M A, Chen, Z, Chory, M, Clayson, C, de Souza, R B, du Plessis, M, Edmondson, M, Edson, J B, Gille, S T, Hermes, J, Hormann, V, Josey, S A, Kurz, M, Lee, T, Maicu, F, Moustahfid, E H, Nicholson, S-A, Nyadjro, E S, Palter, J, Patterson, R G, Penny, S G, Pezzi, L P, Pinardi, N, Reeves Eyre, J E J, Rome, N, Subramanian, A C, Stienbarger, C, Steinhoff, Tobias, Sutton, A J, Tomita, H, Wills, S M, Wilson, C, Yu, L, Browman, Howard, Cronin, MF, Swart, S, Marandino, CA, Anderson, C, Browne, P, Chen, S, Joubert, WR, Schuster, U, Venkatesan, R, Addey, CI, Alves, O, Ardhuin, F, Battle, S, Bourassa, MA, Chen, Z, Chory, M, Clayson, C, de Souza, RB, du Plessis, M, Edmondson, M, Edson, JB, Gille, ST, Hermes, J, Hormann, V, Josey, SA, Kurz, M, Lee, T, Maicu, F, Moustahfid, EH, Nicholson, SA, Nyadjro, ES, Palter, J, Patterson, RG, Penny, SG, Pezzi, LP, Pinardi, N, Eyre, JEJR, Rome, N, Subramanian, AC, Stienbarger, C, Steinhoff, T, Sutton, AJ, Tomita, H, Wills, SM, Wilson, C, and Yu, L
Subjects: observation, Ecology, carbon dioxide uptake, air-sea flux, satellite, Aquatic Science, global, Observing Air-Sea Interactions Strategy (OASIS), Oceanography, multi-stressor, UN Decade of Ocean Sciences for Sustainable Development, weather, climate, Ecology, Evolution, Behavior and Systematics
Abstract: The Observing Air–Sea Interactions Strategy (OASIS) is a new United Nations Decade of Ocean Science for Sustainable Development programme working to develop a practical, integrated approach for observing air–sea interactions globally for improved Earth system (including ecosystem) forecasts, CO2 uptake assessments called for by the Paris Agreement, and invaluable surface ocean information for decision makers. Our “Theory of Change” relies upon leveraged multi-disciplinary activities, partnerships, and capacity strengthening. Recommendations from >40 OceanObs’19 community papers and a series of workshops have been consolidated into three interlinked Grand Ideas for creating #1: a globally distributed network of mobile air–sea observing platforms built around an expanded array of long-term time-series stations; #2: a satellite network, with high spatial and temporal resolution, optimized for measuring air–sea fluxes; and #3: improved representation of air–sea coupling in a hierarchy of Earth system models. OASIS activities are organized across five Theme Teams: (1) Observing Network Design & Model Improvement; (2) Partnership & Capacity Strengthening; (3) UN Decade OASIS Actions; (4) Best Practices & Interoperability Experiments; and (5) Findable–Accessible–Interoperable–Reusable (FAIR) models, data, and OASIS products. Stakeholders, including researchers, are actively recruited to participate in Theme Teams to help promote a predicted, safe, clean, healthy, resilient, and productive ocean.
Published: 2022

7. Marine plastics alter the organic matter composition of the air-sea boundary layer, with influences on CO2 exchange: a large-scale analysis method to explore future ocean scenarios

Author: Galgani, Luisa, primary, Tzempelikou, Eleni, additional, Kalantzi, Ioanna, additional, Tsiola, Anastasia, additional, Tsapakis, Manolis, additional, Pitta, Paraskevi, additional, Esposito, Chiara, additional, Tsotskou, Anastasia, additional, Magiopoulos, Iordanis, additional, Benavides, Roberto, additional, Steinhoff, Tobias, additional, and Loiselle, Steven A., additional
Published: 2023
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8. Perspectives and Integration in SOLAS Science

Author: Garçon, Véronique C., Bell, Thomas G., Wallace, Douglas, Arnold, Steve R., Baker, Alex, Bakker, Dorothee C. E., Bange, Hermann W., Bates, Nicholas R., Bopp, Laurent, Boutin, Jacqueline, Boyd, Philip W., Bracher, Astrid, Burrows, John P., Carpenter, Lucy J., de Leeuw, Gerrit, Fennel, Katja, Font, Jordi, Friedrich, Tobias, Garbe, Christoph S., Gruber, Nicolas, Jaeglé, Lyatt, Lana, Arancha, Lee, James D., Liss, Peter S., Miller, Lisa A., Olgun, Nazli, Olsen, Are, Pfeil, Benjamin, Quack, Birgit, Read, Katie A., Reul, Nicolas, Rödenbeck, Christian, Rohekar, Shital S., Saiz-Lopez, Alfonso, Saltzman, Eric S., Schneising, Oliver, Schuster, Ute, Seferian, Roland, Steinhoff, Tobias, Traon, Pierre-Yves Le, Ziska, Franziska, Liss, Peter S., editor, and Johnson, Martin T., editor
Published: 2014
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9. Global Carbon Budget 2022

Author: Friedlingstein, Pierre, primary, O'Sullivan, Michael, additional, Jones, Matthew W., additional, Andrew, Robbie M., additional, Gregor, Luke, additional, Hauck, Judith, additional, Le Quéré, Corinne, additional, Luijkx, Ingrid T., additional, Olsen, Are, additional, Peters, Glen P., additional, Peters, Wouter, additional, Pongratz, Julia, additional, Schwingshackl, Clemens, additional, Sitch, Stephen, additional, Canadell, Josep G., additional, Ciais, Philippe, additional, Jackson, Robert B., additional, Alin, Simone R., additional, Alkama, Ramdane, additional, Arneth, Almut, additional, Arora, Vivek K., additional, Bates, Nicholas R., additional, Becker, Meike, additional, Bellouin, Nicolas, additional, Bittig, Henry C., additional, Bopp, Laurent, additional, Chevallier, Frédéric, additional, Chini, Louise P., additional, Cronin, Margot, additional, Evans, Wiley, additional, Falk, Stefanie, additional, Feely, Richard A., additional, Gasser, Thomas, additional, Gehlen, Marion, additional, Gkritzalis, Thanos, additional, Gloege, Lucas, additional, Grassi, Giacomo, additional, Gruber, Nicolas, additional, Gürses, Özgür, additional, Harris, Ian, additional, Hefner, Matthew, additional, Houghton, Richard A., additional, Hurtt, George C., additional, Iida, Yosuke, additional, Ilyina, Tatiana, additional, Jain, Atul K., additional, Jersild, Annika, additional, Kadono, Koji, additional, Kato, Etsushi, additional, Kennedy, Daniel, additional, Klein Goldewijk, Kees, additional, Knauer, Jürgen, additional, Korsbakken, Jan Ivar, additional, Landschützer, Peter, additional, Lefèvre, Nathalie, additional, Lindsay, Keith, additional, Liu, Junjie, additional, Liu, Zhu, additional, Marland, Gregg, additional, Mayot, Nicolas, additional, McGrath, Matthew J., additional, Metzl, Nicolas, additional, Monacci, Natalie M., additional, Munro, David R., additional, Nakaoka, Shin-Ichiro, additional, Niwa, Yosuke, additional, O'Brien, Kevin, additional, Ono, Tsuneo, additional, Palmer, Paul I., additional, Pan, Naiqing, additional, Pierrot, Denis, additional, Pocock, Katie, additional, Poulter, Benjamin, additional, Resplandy, Laure, additional, Robertson, Eddy, additional, Rödenbeck, Christian, additional, Rodriguez, Carmen, additional, Rosan, Thais M., additional, Schwinger, Jörg, additional, Séférian, Roland, additional, Shutler, Jamie D., additional, Skjelvan, Ingunn, additional, Steinhoff, Tobias, additional, Sun, Qing, additional, Sutton, Adrienne J., additional, Sweeney, Colm, additional, Takao, Shintaro, additional, Tanhua, Toste, additional, Tans, Pieter P., additional, Tian, Xiangjun, additional, Tian, Hanqin, additional, Tilbrook, Bronte, additional, Tsujino, Hiroyuki, additional, Tubiello, Francesco, additional, van der Werf, Guido R., additional, Walker, Anthony P., additional, Wanninkhof, Rik, additional, Whitehead, Chris, additional, Willstrand Wranne, Anna, additional, Wright, Rebecca, additional, Yuan, Wenping, additional, Yue, Chao, additional, Yue, Xu, additional, Zaehle, Sönke, additional, Zeng, Jiye, additional, and Zheng, Bo, additional
Published: 2022
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10. Supplementary material to "Global Carbon Budget 2022"

Author: Friedlingstein, Pierre, primary, O'Sullivan, Michael, additional, Jones, Matthew W., additional, Andrew, Robbie M., additional, Gregor, Luke, additional, Hauck, Judith, additional, Le Quéré, Corinne, additional, Luijkx, Ingrid T., additional, Olsen, Are, additional, Peters, Glen P., additional, Peters, Wouter, additional, Pongratz, Julia, additional, Schwingshackl, Clemens, additional, Sitch, Stephen, additional, Canadell, Josep G., additional, Ciais, Philippe, additional, Jackson, Robert B., additional, Alin, Simone R., additional, Alkama, Ramdane, additional, Arneth, Almut, additional, Arora, Vivek K., additional, Bates, Nicholas R., additional, Becker, Meike, additional, Bellouin, Nicolas, additional, Bittig, Henry C., additional, Bopp, Laurent, additional, Chevallier, Frédéric, additional, Chini, Louise P., additional, Cronin, Margot, additional, Evans, Wiley, additional, Falk, Stefanie, additional, Feely, Richard A., additional, Gasser, Thomas, additional, Gehlen, Marion, additional, Gkritzalis, Thanos, additional, Gloege, Lucas, additional, Grassi, Giacomo, additional, Gruber, Nicolas, additional, Gürses, Özgür, additional, Harris, Ian, additional, Hefner, Matthew, additional, Houghton, Richard A., additional, Hurtt, George C., additional, Iida, Yosuke, additional, Ilyina, Tatiana, additional, Jain, Atul K., additional, Jersild, Annika, additional, Kadono, Koji, additional, Kato, Etsushi, additional, Kennedy, Daniel, additional, Klein Goldewijk, Kees, additional, Knauer, Jürgen, additional, Korsbakken, Jan Ivar, additional, Landschützer, Peter, additional, Lefèvre, Nathalie, additional, Lindsay, Keith, additional, Liu, Junjie, additional, Liu, Zhu, additional, Marland, Gregg, additional, Mayot, Nicolas, additional, McGrath, Matthew J., additional, Metzl, Nicolas, additional, Monacci, Natalie M., additional, Munro, David R., additional, Nakaoka, Shin-Ichiro, additional, Niwa, Yosuke, additional, O'Brien, Kevin, additional, Ono, Tsuneo, additional, Palmer, Paul I., additional, Pan, Naiqing, additional, Pierrot, Denis, additional, Pocock, Katie, additional, Poulter, Benjamin, additional, Resplandy, Laure, additional, Robertson, Eddy, additional, Rödenbeck, Christian, additional, Rodriguez, Carmen, additional, Rosan, Thais M., additional, Schwinger, Jörg, additional, Séférian, Roland, additional, Shutler, Jamie D., additional, Skjelvan, Ingunn, additional, Steinhoff, Tobias, additional, Sun, Qing, additional, Sutton, Adrienne J., additional, Sweeney, Colm, additional, Takao, Shintaro, additional, Tanhua, Toste, additional, Tans, Pieter P., additional, Tian, Xiangjun, additional, Tian, Hanqin, additional, Tilbrook, Bronte, additional, Tsujino, Hiroyuki, additional, Tubiello, Francesco, additional, van der Werf, Guido, additional, Walker, Anthony P., additional, Wanninkhof, Rik, additional, Whitehead, Chris, additional, Willstrand Wranne, Anna, additional, Wright, Rebecca, additional, Yuan, Wenping, additional, Yue, Chao, additional, Yue, Xu, additional, Zaehle, Sönke, additional, Zeng, Jiye, additional, and Zheng, Bo, additional
Published: 2022
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11. Wintertime process study of the North Brazil Current rings reveals the region as a larger sink for CO<sub>2</sub> than expected

Author: Olivier, Léa, primary, Boutin, Jacqueline, additional, Reverdin, Gilles, additional, Lefèvre, Nathalie, additional, Landschützer, Peter, additional, Speich, Sabrina, additional, Karstensen, Johannes, additional, Labaste, Matthieu, additional, Noisel, Christophe, additional, Ritschel, Markus, additional, Steinhoff, Tobias, additional, and Wanninkhof, Rik, additional
Published: 2022
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12. Global Carbon Budget 2022

Author: Friedlingstein, Pierre, O'Sullivan, Michael, Jones, Matthew W., Andrew, Robbie M., Gregor, Luke, Hauck, Judith, Le Quéré, Corinne, Luijkx, Ingrid T., Olsen, Are, Peters, Glen P., Peters, Wouter, Pongratz, Julia, Schwingshackl, Clemens, Sitch, Stephen, Canadell, Josep G., Ciais, Philippe, Jackson, Robert B., Alin, Simone R., Alkama, Ramdane, Arneth, Almut, Arora, Vivek K., Bates, Nicholas R., Becker, Meike, Bellouin, Nicolas, Bittig, Henry C., Bopp, Laurent, Chevallier, Frédéric, Chini, Louise P., Cronin, Margot, Evans, Wiley, Falk, Stefanie, Feely, Richard A., Gasser, Thomas, Gehlen, Marion, Gkritzalis, Thanos, Gloege, Lucas, Grassi, Giacomo, Gruber, Nicolas, Gürses, Özgür, Harris, Ian, Hefner, Matthew, Houghton, Richard A., Hurtt, George C., Iida, Yosuke, Ilyina, Tatiana, Jain, Atul K., Jersild, Annika, Kadono, Koji, Kato, Etsushi, Kennedy, Daniel, Klein Goldewijk, Kees, Knauer, Jürgen, Korsbakken, Jan Ivar, Landschützer, Peter, Lefèvre, Nathalie, Lindsay, Keith, Liu, Junjie, Liu, Zhu, Marland, Gregg, Mayot, Nicolas, McGrath, Matthew J., Metzl, Nicolas, Monacci, Natalie M., Munro, David R., Nakaoka, Shin-Ichiro, Niwa, Yosuke, O'Brien, Kevin, Ono, Tsuneo, Palmer, Paul I., Pan, Naiqing, Pierrot, Denis, Pocock, Katie, Poulter, Benjamin, Resplandy, Laure, Robertson, Eddy, Rödenbeck, Christian, Rodriguez, Carmen, Rosan, Thais M., Schwinger, Jörg, Séférian, Roland, Shutler, Jamie D., Skjelvan, Ingunn, Steinhoff, Tobias, Sun, Qing, Sutton, Adrienne J., Sweeney, Colm, Takao, Shintaro, Tanhua, Toste, Tans, Pieter P., Tian, Xiangjun, Tian, Hanqin, Tilbrook, Bronte, Tsujino, Hiroyuki, Tubiello, Francesco, Van Der Werf, Guido R., Walker, Anthony P., Wanninkhof, Rik, Whitehead, Chris, Willstrand Wranne, Anna, Wright, Rebecca, Yuan, Wenping, Yue, Chao, Yue, Xu, Zaehle, Sönke, Zeng, Jiye, and Zheng, Bo
Subjects: Earth sciences, ddc:550
Abstract: Accurate assessment of anthropogenic carbon dioxide (CO$_2$) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere in a changing climate is critical to better understand the global carbon cycle, support the development of climate policies, and project future climate change. Here we describe and synthesize data sets and methodologies to quantify the five major components of the global carbon budget and their uncertainties. Fossil CO$_2$ emissions (E$_{FOS}$) are based on energy statistics and cement production data, while emissions from land-use change (E$_{LUC}$), mainly deforestation, are based on land use and land-use change data and bookkeeping models. Atmospheric CO$_2$ concentration is measured directly, and its growth rate (G$_{ATM}$) is computed from the annual changes in concentration. The ocean CO$_2$ sink (S$_{OCEAN}$) is estimated with global ocean biogeochemistry models and observation-based data products. The terrestrial CO$_2$ sink (S$_{LAND}$) is estimated with dynamic global vegetation models. The resulting carbon budget imbalance (B$_{IM}$), the difference between the estimated total emissions and the estimated changes in the atmosphere, ocean, and terrestrial biosphere, is a measure of imperfect data and understanding of the contemporary carbon cycle. All uncertainties are reported as ±1σ. For the year 2021, E$_{FOS}$ increased by 5.1 % relative to 2020, with fossil emissions at 10.1 ± 0.5 GtC yr$^{−1}$ (9.9 ± 0.5 GtC yr$^{−1}$ when the cement carbonation sink is included), and E$_{LUC}$ was 1.1 ± 0.7 GtC yr$^{−1}$, for a total anthropogenic CO$_2$ emission (including the cement carbonation sink) of 10.9 ± 0.8 GtC yr$^{−1}$ (40.0 ± 2.9 GtCO$_2$). Also, for 2021, G$_{ATM}$ was 5.2 ± 0.2 GtC yr$^{−1}$ (2.5 ± 0.1 ppm yr$^{−1}$), S$_{OCEAN}$ was 2.9 ± 0.4 GtC yr$^{−1}$, and S$_{LAND}$ was 3.5 ± 0.9 GtC yr$^{−1}$, with a B$_{IM}$ of −0.6 GtC yr$^{−1}$ (i.e. the total estimated sources were too low or sinks were too high). The global atmospheric CO$_2$ concentration averaged over 2021 reached 414.71 ± 0.1 ppm. Preliminary data for 2022 suggest an increase in E$_{FOS}$ relative to 2021 of +1.0 % (0.1 % to 1.9 %) globally and atmospheric CO$_2$ concentration reaching 417.2 ppm, more than 50 % above pre-industrial levels (around 278 ppm). Overall, the mean and trend in the components of the global carbon budget are consistently estimated over the period 1959–2021, but discrepancies of up to 1 GtC yr$^{−1}$ persist for the representation of annual to semi-decadal variability in CO$_2$ fluxes. Comparison of estimates from multiple approaches and observations shows (1) a persistent large uncertainty in the estimate of land-use change emissions, (2) a low agreement between the different methods on the magnitude of the land CO$_2$ flux in the northern extratropics, and (3) a discrepancy between the different methods on the strength of the ocean sink over the last decade. This living data update documents changes in the methods and data sets used in this new global carbon budget and the progress in understanding of the global carbon cycle compared with previous publications of this data set. The data presented in this work are available at https://doi.org/10.18160/GCP-2022 (Friedlingstein et al., 2022b).
Published: 2022

13. Marine plastics alter the organic matter composition of the air-sea boundary layer, with influences on CO2 exchange: a large-scale analysis method to explore future ocean scenarios

Author: Galgani, Luisa, Tzempelikou, Eleni, Kalantzi, Ioanna, Tsiola, Anastasia, Tsapakis, Manolis, Paraskevi, Pitta, Esposito, Chiara, Tsotskou, Anastasia, Magiopoulos, Iordanis, Benavides, Roberto, Steinhoff, Tobias, and Loiselle, Steven A.
Subjects: Environmental Engineering, pH, Microplastics, sea-surface microlayer, Mesocosms, Pollution, marine gel particles, dissolved and particulate organic matter, pCO2, pH, pCO, Environmental Chemistry, mesocosms, Marine gel particles, Waste Management and Disposal, Dissolved and particulate organic matter, Sea-surface microlayer
Abstract: Microplastics are substrates for microbial activity and can influence biomass production. This has potentially important implications in the sea-surface microlayer, the marine boundary layer that controls gas exchange with the atmosphere and where biologically produced organic compounds can accumulate. In the present study, we used six large scale mesocosms to simulate future ocean scenarios of high plastic concentration. Each mesocosm was filled with 3 m3 of seawater from the oligotrophic Sea of Crete, in the Eastern Mediterranean Sea. A known amount of standard polystyrene microbeads of 30 μm diameter was added to three replicate mesocosms, while maintaining the remaining three as plastic-free controls. Over the course of a 12-day experiment, we explored microbial organic matter dynamics in the sea-surface microlayer in the presence and absence of microplastic contamination of the underlying water. Our study shows that microplastics increased both biomass production and enrichment of carbohydrate-like and proteinaceous marine gel compounds in the sea-surface microlayer. Importantly, this resulted in a ∼3 % reduction in the concentration of dissolved CO2 in the underlying water. This reduction was associated to both direct and indirect impacts of microplastic pollution on the uptake of CO2 within the marine carbon cycle, by modifying the biogenic composition of the sea's boundary layer with the atmosphere.
Published: 2022
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14. The Integrated Carbon Observation System in Europe

Author: Heiskanen, Jouni, primary, Brümmer, Christian, additional, Buchmann, Nina, additional, Calfapietra, Carlo, additional, Chen, Huilin, additional, Gielen, Bert, additional, Gkritzalis, Thanos, additional, Hammer, Samuel, additional, Hartman, Susan, additional, Herbst, Mathias, additional, Janssens, Ivan A., additional, Jordan, Armin, additional, Juurola, Eija, additional, Karstens, Ute, additional, Kasurinen, Ville, additional, Kruijt, Bart, additional, Lankreijer, Harry, additional, Levin, Ingeborg, additional, Linderson, Maj-Lena, additional, Loustau, Denis, additional, Merbold, Lutz, additional, Myhre, Cathrine Lund, additional, Papale, Dario, additional, Pavelka, Marian, additional, Pilegaard, Kim, additional, Ramonet, Michel, additional, Rebmann, Corinna, additional, Rinne, Janne, additional, Rivier, Léonard, additional, Saltikoff, Elena, additional, Sanders, Richard, additional, Steinbacher, Martin, additional, Steinhoff, Tobias, additional, Watson, Andrew, additional, Vermeulen, Alex T., additional, Vesala, Timo, additional, Vítková, Gabriela, additional, and Kutsch, Werner, additional
Published: 2022
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15. Tracking the Variable North Atlantic Sink for Atmospheric CO2

Author: Watson, Andrew J., Schuster, Ute, Bakker, Dorothee C. E., Bates, Nicholas R., Corbière, Antoine, González-Dávila, Melchor, Friedrich, Tobias, Hauck, Judith, Heinze, Christoph, Johannessen, Truls, Körtzinger, Arne, Metzl, Nicolas, Olafsson, Jon, Olsen, Are, Oschlies, Andreas, Padin, X. Antonio, Pfeil, Benjamin, Santana-Casiano, J. Magdalena, Steinhoff, Tobias, Telszewski, Maciej, Rios, Aida F., Wallace, Douglas W. R., and Wanninkhof, Rik
Published: 2009
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16. Enhance Ocean Carbon Observations: Successful Implementation of a Novel Autonomous Total Alkalinity Analyzer on a Ship of Opportunity

Author: Seelmann, Katharina, Steinhoff, Tobias, Aßmann, Steffen, and Körtzinger, Arne
Abstract: Over recent decades, observations based on merchant vessels (Ships of Opportunity—SOOP) equipped with sensors measuring the CO2 partial pressure (pCO2) in the surface seawater formed the backbone of the global ocean carbon observation system. However, the restriction to pCO2 measurements alone is one severe shortcoming of the current SOOP observatory. Full insight into the marine inorganic carbon system requires the measurement of at least two of the four measurable variables which are pCO2, total alkalinity (TA), dissolved inorganic carbon (DIC), and pH. One workaround is to estimate TA values based on established temperature-salinity parameterizations, but this leads to higher uncertainties and the possibility of regional and/or seasonal biases. Therefore, autonomous SOOP-based TA measurements are of great interest. Our study describes the implementation of a novel autonomous analyzer for seawater TA, the CONTROS HydroFIAⓇ TA system (-4H-JENA engineering GmbH, Germany) for unattended routine TA measurements on a SOOP line operating in the North Atlantic. We present the installation in detail and address major issues encountered with autonomous measurements using this analyzer, e.g., automated cleaning and stabilization routines, and waste handling. Another issue during long-term deployments is the provision of reference seawater in large-volume containers for quality assurance measurements and drift correction. Hence, a stable large-volume seawater storage had to be found. We tested several container types with respect to their suitability to store seawater over a time period of 30 days without significant changes in TA. Only one gas sampling bag made of polyvinylidene fluoride (PVDF) satisfied the high stability requirement. In order to prove the performance of the entire setup, we compared the autonomous TA measurements with TA from discrete samples taken during the first two trans-Atlantic crossings. Although the measurement accuracy in unattended mode (about ± 5 μmol kg^-1) slightly deteriorated compared to our previous system characterization, its overall uncertainty fulfilled requirements for autonomous TA measurements on SOOP lines. A comparison with predicted TA values based on an established and often used parameterization pointed at regional and seasonal limitations of such TA predictions. Consequently, TA observations with better coverage of spatiotemporal variability are needed, which is now possible with the method described here.
Published: 2020
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17. Physical and biogeochemical parameters of the Mediterranean Sea during a cruise with RV Maria S. Merian in March 2018

Author: Hainbucher, Dagmar, Álvarez, Marta, Astray Uceda, Blanca, Bachi, Giancarlo, Cardin, Vanessa, Celentano, Paolo, Chaikalis, Spyros, del Mar Chaves Montero, Maria, Civitarese, Giuseppe, Fajar, Noelia M., Fripiat, Francois, Gerke, Lennart, Gogou, Alexandra, Guallart, Elisa F., Gülk, Birte, El Rahman Hassoun, Abed, Lange, Nico, Rochner, Andrea, Santinelli, Chiara, Steinhoff, Tobias, Tanhua, Toste, Urbini, Lidia, Velaoras, Dimitrios, Wolf, Fabian, and Welsch, Andreas
Abstract: The last few decades have seen dramatic changes in the hydrography and biogeochemistry of the Mediterranean Sea. The complex bathymetry and highly variable spatial and temporal scales of atmospheric forcing, convective and ventilation processes contribute to generate complex and unsteady circulation patterns and significant variability in biogeochemical systems. Part of the variability of this system can be influenced by anthropogenic contributions. Consequently, it is necessary to document details and to understand trends in place to better relate the observed processes and to possibly predict the consequences of these changes. In this context we report data from an oceanographic cruise in the Mediterranean Sea on the German research vessel Maria S. Merian (MSM72) in March 2018. The main objective of the cruise was to contribute to the understanding of long-term changes and trends in physical and biogeochemical parameters, such as the anthropogenic carbon uptake and to further assess the hydrographical situation after the major climatological shifts in the eastern and western part of the basin, known as the Eastern and Western Mediterranean Transients. During the cruise, multidisciplinary measurements were conducted on a predominantly zonal section throughout the Mediterranean Sea, contributing to the Med-SHIP and GO-SHIP long-term repeat cruise section that is conducted at regular intervals in the Mediterranean Sea to observe changes and impacts on physical and biogeochemical variables. The data can be accessed at https://doi.org/10.1594/PANGAEA.905902 (Hainbucher et al., 2019), https://doi.org/10.1594/PANGAEA.913512 (Hainbucher, 2020a) https://doi.org/10.1594/PANGAEA.913608, (Hainbucher, 2020b) https://doi.org/10.1594/PANGAEA.913505, (Hainbucher, 2020c) https://doi.org/10.1594/PANGAEA.905887 (Tanhua et al., 2019) and https://doi.org/10.25921/z7en-hn85 (Tanhua et al, 2020).
Published: 2020

18. Surface variability of climate-relevant trace gases (N2O, CO2, CO) in the tropical eastern South Pacific Ocean

Author: Arevalo-Martinez, Damian L., Steinhoff, Tobias, and Bange, Hermann W.
Abstract: Given the climatic relevance of marine-derived trace gases, the investigation of their distribution and emissions from key oceanic regions is a crucial need in our efforts to better understand potential responses of the ocean and the overlying atmosphere to environmental changes such as warming and deoxygenation. Low-oxygen waters connected to coastal upwelling systems and the associated oxygen minimum zones(OMZ) are well-recognized strong sources of several trace gases. Our main goal during the M135-M138 cruises was to assess the distribution of different gases which are relevant for the biogeochemical cycling of carbon and nitrogen in the OMZ off Peru, as well as the spatial and temporal variability of their sea-air fluxes.
Published: 2020

19. Uncertainty analysis for calculations of the marine carbonate system for ICOS-Oceans stations

Author: Steinhoff, Tobias and Skjelvan, Ingunn
Subjects: marine carbon, uncertainty, CO2sys
Published: 2020
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20. Perspectives and Integration in SOLAS Science

Author: Garçon, Véronique C., primary, Bell, Thomas G., additional, Wallace, Douglas, additional, Arnold, Steve R., additional, Baker, Alex, additional, Bakker, Dorothee C. E., additional, Bange, Hermann W., additional, Bates, Nicholas R., additional, Bopp, Laurent, additional, Boutin, Jacqueline, additional, Boyd, Philip W., additional, Bracher, Astrid, additional, Burrows, John P., additional, Carpenter, Lucy J., additional, de Leeuw, Gerrit, additional, Fennel, Katja, additional, Font, Jordi, additional, Friedrich, Tobias, additional, Garbe, Christoph S., additional, Gruber, Nicolas, additional, Jaeglé, Lyatt, additional, Lana, Arancha, additional, Lee, James D., additional, Liss, Peter S., additional, Miller, Lisa A., additional, Olgun, Nazli, additional, Olsen, Are, additional, Pfeil, Benjamin, additional, Quack, Birgit, additional, Read, Katie A., additional, Reul, Nicolas, additional, Rödenbeck, Christian, additional, Rohekar, Shital S., additional, Saiz-Lopez, Alfonso, additional, Saltzman, Eric S., additional, Schneising, Oliver, additional, Schuster, Ute, additional, Seferian, Roland, additional, Steinhoff, Tobias, additional, Traon, Pierre-Yves Le, additional, and Ziska, Franziska, additional
Published: 2013
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21. Enhance Ocean Carbon Observations: Successful Implementation of a Novel Autonomous Total Alkalinity Analyzer on a Ship of Opportunity

Author: Seelmann, Katharina, primary, Steinhoff, Tobias, additional, Aßmann, Steffen, additional, and Körtzinger, Arne, additional
Published: 2020
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22. Physical and biogeochemical parameters of the Mediterranean Sea during a cruise with RV <i>Maria S. Merian</i> in March 2018

Author: Hainbucher, Dagmar, primary, Álvarez, Marta, additional, Astray Uceda, Blanca, additional, Bachi, Giancarlo, additional, Cardin, Vanessa, additional, Celentano, Paolo, additional, Chaikalis, Spyros, additional, del Mar Chaves Montero, Maria, additional, Civitarese, Giuseppe, additional, Fajar, Noelia M., additional, Fripiat, Francois, additional, Gerke, Lennart, additional, Gogou, Alexandra, additional, Guallart, Elisa F., additional, Gülk, Birte, additional, El Rahman Hassoun, Abed, additional, Lange, Nico, additional, Rochner, Andrea, additional, Santinelli, Chiara, additional, Steinhoff, Tobias, additional, Tanhua, Toste, additional, Urbini, Lidia, additional, Velaoras, Dimitrios, additional, Wolf, Fabian, additional, and Welsch, Andreas, additional
Published: 2020
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23. Variability and Trends in Physical and Biogeochemical Parameters of the Mediterranean Sea during a Cruise with RV MARIA S. MERIAN in March 2018

Author: Hainbucher, Dagmar, primary, Álvarez, Marta, additional, Astray Uceda, Blanca, additional, Bachi, Giancarlo, additional, Cardin, Vanessa, additional, Celentano, Paolo, additional, Chaikakis, Spyros, additional, Chavez Montero, Maria del Mar, additional, Civitarese, Giuseppe, additional, Fajar, Noelia M., additional, Fripiat, Francois, additional, Gerke, Lennart, additional, Gogou, Alexandra, additional, Fernández Guallart, Elisa, additional, Gülk, Birte, additional, Hassoun, Abed El Rahaman, additional, Lange, Nico, additional, Rochner, Andrea, additional, Santinelli, Chiara, additional, Steinhoff, Tobias, additional, Tanhua, Toste, additional, Urbini, Lidia, additional, Velaoras, Dimitrios, additional, Wolf, Fabian, additional, and Welsch, Andreas, additional
Published: 2020
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24. Level up ocean carbon observations: Successful implementation of a novel autonomous total alkalinity analyzer on a commercial Ship of Opportunity

Author: Seelmann, Katharina, primary, Steinhoff, Tobias, additional, and Körtzinger, Arne, additional
Published: 2020
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25. Winter weather controls net influx of atmospheric CO2 on the north-west European shelf

Author: Kitidis, Vassilis, primary, Shutler, Jamie D., additional, Ashton, Ian, additional, Warren, Mark, additional, Brown, Ian, additional, Findlay, Helen, additional, Hartman, Sue E., additional, Sanders, Richard, additional, Humphreys, Matthew, additional, Kivimäe, Caroline, additional, Greenwood, Naomi, additional, Hull, Tom, additional, Pearce, David, additional, McGrath, Triona, additional, Stewart, Brian M., additional, Walsham, Pamela, additional, McGovern, Evin, additional, Bozec, Yann, additional, Gac, Jean-Philippe, additional, van Heuven, Steven M. A. C., additional, Hoppema, Mario, additional, Schuster, Ute, additional, Johannessen, Truls, additional, Omar, Abdirahman, additional, Lauvset, Siv K., additional, Skjelvan, Ingunn, additional, Olsen, Are, additional, Steinhoff, Tobias, additional, Körtzinger, Arne, additional, Becker, Meike, additional, Lefevre, Nathalie, additional, Diverrès, Denis, additional, Gkritzalis, Thanos, additional, Cattrijsse, André, additional, Petersen, Wilhelm, additional, Voynova, Yoana G., additional, Chapron, Bertrand, additional, Grouazel, Antoine, additional, Land, Peter E., additional, Sharples, Jonathan, additional, and Nightingale, Philip D., additional
Published: 2019
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26. At‐sea intercomparison of three underway p CO 2 systems

Author: Arruda, Ricardo, primary, Atamanchuk, Dariia, additional, Cronin, Margot, additional, Steinhoff, Tobias, additional, and Wallace, Douglas W. R., additional
Published: 2019
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27. Air–sea fluxes of greenhouse gases and oxygen in the northern Benguela Current region during upwelling events

Author: Morgan, Eric J., primary, Lavric, Jost V., additional, Arévalo-Martínez, Damian L., additional, Bange, Hermann W., additional, Steinhoff, Tobias, additional, Seifert, Thomas, additional, and Heimann, Martin, additional
Published: 2019
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28. Direct oceanic emissions unlikely to account for the missing source of atmospheric carbonyl sulfide

Author: Lennartz, Sinikka T., Marandino, Christa A., Hobe, Marc von, Cortes, Pau, Quack, Birgit, Simo, Rafel, Booge, Dennis, Pozzer, Andrea, Steinhoff, Tobias, Arevalo-Martinez, Damian L., Kloss, Corinna, Bracher, Astrid, Röttgers, Rüdiger, Atlas, Elliott, and Krüger, Kirstin
Subjects: lcsh:Chemistry, lcsh:QD1-999, ddc:550, lcsh:Physics, lcsh:QC1-999
Abstract: The climate active trace-gas carbonyl sulfide (OCS) is the most abundant sulfur gas in the atmosphere. A missing source in its atmospheric budget is currently suggested, resulting from an upward revision of the vegetation sink. Tropical oceanic emissions have been proposed to close the resulting gap in the atmospheric budget. We present a bottom-up approach including (i) new observations of OCS in surface waters of the tropical Atlantic, Pacific and Indian oceans and (ii) a further improved global box model to show that direct OCS emissions are unlikely to account for the missing source. The box model suggests an undersaturation of the surface water with respect to OCS integrated over the entire tropical ocean area and, further, global annual direct emissions of OCS well below that suggested by top-down estimates. In addition, we discuss the potential of indirect emission from CS2 and dimethylsulfide (DMS) to account for the gap in the atmospheric budget. This bottom-up estimate of oceanic emissions has implications for using OCS as a proxy for global terrestrial CO2 uptake, which is currently impeded by the inadequate quantification of atmospheric OCS sources and sinks.
Published: 2017

29. Constraining the Oceanic Uptake and Fluxes of Greenhouse Gases by Building an Ocean Network of Certified Stations: The Ocean Component of the Integrated Carbon Observation System, ICOS-Oceans

Author: Steinhoff, Tobias, Gkritzalis, Thanos, Lauvset, Siv K., Jones, Stephen D., Schuster, Ute, Olsen, Are, Becker, Meike, Bozzano, Roberto, Brunetti, Fabio, Cantoni, Carolina, Cardin, Vanessa, Diverrès, Denis, Fiedler, Björn, Fransson, Agneta, Giani, Michele, Hartman, Sue, Hoppema, Mario, Jeansson, Emil, Johannessen, Truls, Kitidis, Vassilis, Körtzinger, Arne, Landa, Camilla S., Lefèvre, Nathalie, Luchetta, Anna, Naudts, Lieven, Nightingale, Philip, Omar, Abdirahman M., Pensieri, Sara, Pfeil, Benjamin, Castaño-Primo, Rocío, Rehder, Gregor, Rutgersson, Anna, Sanders, Richard, Schewe, Ingo, Siena, Giuseppe, Skjelvan, Ingunn, Soltwedel, Thomas, Van Heuven, Steven M. A. C., Watson, Andrew J., Helmholtz Centre for Ocean Research [Kiel] (GEOMAR), Flanders Marine Institute, VLIZ, Bjerknes Centre for Climate Research (BCCR), Department of Biological Sciences [Bergen] (BIO / UiB), University of Bergen (UiB)-University of Bergen (UiB), College of Life and Environmental Sciences [Exeter], University of Exeter, University of Leeds, Instrumentation, Moyens analytiques, Observatoires en Géophysique et Océanographie (IMAGO), Norwegian Polar Institute, Istituto Nazionale di Geofisica e di Oceanografia Sperimentale (OGS), Meteorological Research Institute [Tsukuba] (MRI), Japan Meteorological Agency (JMA), Plymouth Marine Laboratory (PML), Austral, Boréal et Carbone (ABC), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Royal Belgian Institute of Natural Sciences (RBINS), University of Bergen (UiB), Department of Earth Sciences [Uppsala], Uppsala University, Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI), Centre for Isotope Research [Groningen] (CIO), University of Groningen [Groningen], European Project: 654410,H2020,H2020-INFRAIA-2014-2015,JERICO-NEXT(2015), Plymouth Marine Laboratory, Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU), GEOMAR - Helmholtz Centre for Ocean Research [Kiel] (GEOMAR), University of Bergen (UIB), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Department of Earth Sciences [ Uppsala], and NASA Ames Research Center (ARC)
Subjects: [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph], autonomous surface vehicle, Climate Research, ATC, dissolved inorganic, carbon portal, ocean observation, network design, Oceanografi, hydrologi och vattenresurser, flux maps, Klimatforskning, Oceanography, Hydrology and Water Resources, CO2 fluxes, Atmospheric Thematic Centre, DIC, CP, carbon sink, ComputingMilieux_MISCELLANEOUS, ASV
Abstract: The European Research Infrastructure Consortium “Integrated Carbon Observation System” (ICOS) aims at delivering high quality greenhouse gas (GHG) observations and derived data products (e.g., regional GHG-flux maps) for constraining the GHG balance on a European level, on a sustained long-term basis. The marine domain (ICOS-Oceans) currently consists of 11 Ship of Opportunity lines (SOOP – Ship of Opportunity Program) and 10 Fixed Ocean Stations (FOSs) spread across European waters, including the North Atlantic and Arctic Oceans and the Barents, North, Baltic, and Mediterranean Seas. The stations operate in a harmonized and standardized way based on community-proven protocols and methods for ocean GHG observations, improving operational conformity as well as quality control and assurance of the data. This enables the network to focus on long term research into the marine carbon cycle and the anthropogenic carbon sink, while preparing the network to include other GHG fluxes. ICOS data are processed on a near real-time basis and will be published on the ICOS Carbon Portal (CP), allowing monthly estimates of CO2 air-sea exchange to be quantified for European waters. ICOS establishes transparent operational data management routines following the FAIR (Findable, Accessible, Interoperable, and Reusable) guiding principles allowing amongst others reproducibility, interoperability, and traceability. The ICOS-Oceans network is actively integrating with the atmospheric (e.g., improved atmospheric measurements onboard SOOP lines) and ecosystem (e.g., oceanic direct gas flux measurements) domains of ICOS, and utilizes techniques developed by the ICOS Central Facilities and the CP. There is a strong interaction with the international ocean carbon cycle community to enhance interoperability and harmonize data flow. The future vision of ICOS-Oceans includes ship-based ocean survey sections to obtain a three-dimensional understanding of marine carbon cycle processes and optimize the existing network design. publishedVersion
Published: 2019

30. Unfundierte Kritik:Eine Erwiderung Auf Einen Kommentar Zu Schwächen Von Open Access

Author: Fischer, Caroline, Eisentraut, Nikolas, Fischer, Georg, Fecher, Benedikt, Friesilke, Sascha, Goller, Marion, Hamann, Hanjo, Havemann, Johanna, Heck, Tamara, Heimstädt, Maximilian, Hirsbrunner, Simon David, von Lautz, Alexander Horst, Müller-Birn, Claudia, Mayer, Katja, Petzer, Tatjana, Schmalz, Xenia, Schoch, Kerstin, Schubotz, Moritz, Steinhardt, Isabel, Steinhoff, Tobias, Stutz, Hans Henning, Teckentrup, Vanessa, Tikhonov, Aleksej, Wenzel, Tobias, and Wildgans, Julia
Published: 2019

31. A detailed view on the seasonality of stable carbon isotopes across the North Atlantic

Author: Becker, Meike, Steinhoff, Tobias, and Körtzinger, Arne
Abstract: The North Atlantic Ocean plays a major role in climate change not the least due to its importance in CO2 uptake and thus natural carbon sequestration. The CO2 concentration in its surface waters, which determines the ocean's CO2 sink/source function, varies on seasonal and interannual timescales and is mainly driven by air‐sea gas exchange, temperature variability and biological production/respiration. The variability in stable carbon isotope signatures can provide further insight and help to improve the understanding of the controls of the surface ocean carbon system. In this work, a cavity ringdown spectrometer was coupled to a classical, equilibrator‐based pCO2 system on a VOS line that regularly sails across the subpolar North Atlantic between North America and Europe. From 2012 to 2014, a 3‐year time series of underway surface δ13C(CO2) data was obtained along with continuous measurements of temperature, salinity and fCO2. We perform a decomposition of thermal and non‐thermal drivers of fCO2 and δ13C(CO2). The direct measurement of the surface ocean δ13C(CO2) allows us to estimate the mass flux and also the stable carbon isotope fractionation during air‐sea gas exchange. While the CO2 mass flow was in the range of 1 − 2 mol CO2 m−2 yr−1 on the shelves and 2.5 − 3.5 mol CO2 m−2 yr−1 in the open ocean, the isotope signature of this CO2 flux with respect to the sea surface ranged from −2.6 ± 1.4‰ on the shelves to −6.6 ± 0.9‰ in the western and −4.5 ± 0.9‰ in the eastern part of the open ocean section.
Published: 2018

32. Atmospheric GHG measurements onboard Voluntary Observing Ships - approaches for improved atmospheric sampling

Author: Steinhoff, Tobias, Delmotte, Marc, Hazan, Lynn, Jordan, Armin, Lavric, Jost, Lett, C., Lefevre, Nathalie, Ramonet, Michele, Rödenbeck, Christian, Rzesanke, Daniel, and Rehder, Gregor
Abstract: Autonomous systems measuring the partial pressure of CO2 (pCO2) in surface waters on commercial carrier ships (Voluntary Observing Ship, VOS), which allows for high spatiotemporal data coverage, are a major component of the Ocean Thematic Centre (OTC) data stream. Currently, ICOS operates lines in the Atlantic, North Sea and the Baltic. All lines are determining pCO2 by measuring CO2 in air that has been equilibrated with seawater. As part of the European H2020 project RINGO (https://www.icos-ri.eu/ringo), we are evaluating the possibility of using VOS to expand the atmospheric network. We will provide technical solutions for three different settings and approaches, and assess the added value for the atmospheric observation network. Two systems are designed as stand-alone modules for continuous atmospheric CO2 and CH4 measurements, following the technological requirements defined by the ATC, and will be operated in the Baltic (high anthropogenic influence) and on a line between France and Brazil (clean marine air, large temperature and humidity gradient). A second approach is using the existing instrumentation for seawater measurements (North Atlantic), which we aim to improve in order to make these measurements usable for the atmospheric research community. This is an effort that connects the ocean research community with the Central Analytical Laboratories (CAL; testing an extended range of standard gases, providing flask sampling opportunity), the Atmospheric Thematic Centre (ATC; work on data streams that can be digested by the ATC system), and the modelling community (identifying useful sampling strategies). Here we present a status update of the ongoing work, which is a joined effort of the atmospheric and ocean community within ICOS and relying on the expertise of both fields.
Published: 2018

33. Bubble-Mediated Gas Transfer and Gas Transfer Suppression of DMS and CO2

Author: Zavarsky, Alexander, Goddijn-Murphy, L., Steinhoff, Tobias, and Marandino, Christa A.
Subjects: Physics::Atmospheric and Oceanic Physics
Abstract: Direct dimethyl sulfide (DMS) flux measurements using eddy covariance have shown a suppression of gas transfer at medium to high wind speed. However, not all eddy covariance measurements show evidence of this suppression. Processes, such as wave-wind interaction and surfactants, have been postulated to cause this suppression. We measured DMS and carbon dioxide eddy covariance fluxes during the Asian summer monsoon in the western tropical Indian Ocean (July and August 2014). Both fluxes and their respective gas transfer velocities show signs of a gas transfer suppression above 10 m/s. Using a wind-wave interaction, we describe a flow separation process that could be responsible for a suppression of gas transfer. As a result we provide a Reynolds number-based parameterization, which states the likelihood of a gas transfer suppression for this cruise and previously published gas transfer data. Additionally, we compute the difference in the gas transfer velocities of DMS and CO2 to estimate the bubble-mediated gas transfer using a hybrid model with three whitecap parameterizations.
Published: 2018
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34. 2. Wochenbericht POS519

Author: Steinhoff, Tobias
Abstract: FS Poseidon Reise POS519 22.01. – 11.02.2018, Las Palmas – Mindelo
Published: 2018

35. 3. Wochenbericht POS519

Author: Steinhoff, Tobias
Abstract: FS Poseidon Reise POS519 22.01. – 11.02.2018, Las Palmas – Mindelo
Published: 2018

36. 1. Wochenbericht POS519

Author: Steinhoff, Tobias
Abstract: FS Poseidon Reise POS519 22.01. – 11.02.2018, Las Palmas – Mindelo
Published: 2018

37. Abschlussbericht zu SO-243 ASTRA-OMZ: Atmosphäre-Ozean-Wechsel-wirkung von Spurenelementen in der Sauerstoffminimumzone

Author: Marandino, Christa A. and Steinhoff, Tobias
Published: 2018

38. Unfundierte Kritik. Eine Erwiderung auf einen Kommentar zu Schwächen von Open Access

Author: Fischer, Caroline, primary, Eisentraut, Nikolas, additional, Fischer, Georg, additional, Fecher, Benedikt, additional, Friesike, Sascha, additional, Goller, Marion, additional, Hamann, Hanjo, additional, Havemann, Johanna, additional, Heck, Tamara, additional, Heimstädt, Maximilian, additional, Hirsbrunner, Simon David, additional, von Lautz, Alexander H., additional, Müller-Birn, Claudia, additional, Mayer, Katja, additional, Petzer, Tatjana, additional, Schmalz, Xenia, additional, Schoch, Kerstin, additional, Schubotz, Moritz, additional, Steinhardt, Isabel, additional, Steinhoff, Tobias, additional, Stutz, Hans Henning, additional, Teckentrup, Vanessa, additional, Tikhonov, Aleksej, additional, Wenzel, Tobias, additional, and Wildgans, Julia, additional
Published: 2019
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39. A Surface Ocean CO2 Reference Network, SOCONET and Associated Marine Boundary Layer CO2 Measurements

Author: Wanninkhof, Rik, primary, Pickers, Penelope A., additional, Omar, Abdirahman M., additional, Sutton, Adrienne, additional, Murata, Akihiko, additional, Olsen, Are, additional, Stephens, Britton B., additional, Tilbrook, Bronte, additional, Munro, David, additional, Pierrot, Denis, additional, Rehder, Gregor, additional, Santana-Casiano, J. Magdalena, additional, Müller, Jens D., additional, Trinanes, Joaquin, additional, Tedesco, Kathy, additional, O’Brien, Kevin, additional, Currie, Kim, additional, Barbero, Leticia, additional, Telszewski, Maciej, additional, Hoppema, Mario, additional, Ishii, Masao, additional, González-Dávila, Melchor, additional, Bates, Nicholas R., additional, Metzl, Nicolas, additional, Suntharalingam, Parvadha, additional, Feely, Richard A., additional, Nakaoka, Shin-ichiro, additional, Lauvset, Siv K., additional, Takahashi, Taro, additional, Steinhoff, Tobias, additional, and Schuster, Ute, additional
Published: 2019
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40. Supplementary material to "Air–Sea Fluxes of Greenhouse Gases and Oxygen in the Northern Benguela Current Region During Upwelling Events"

Author: Morgan, Eric J., primary, Lavric, Jost V., additional, Arévalo-Martínez, Damian L., additional, Bange, Hermann W., additional, Steinhoff, Tobias, additional, Seifert, Thomas, additional, and Heimann, Martin, additional
Published: 2019
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41. Global Carbon Budget 2018

Author: Le Quéré, Corinne, primary, Andrew, Robbie M., additional, Friedlingstein, Pierre, additional, Sitch, Stephen, additional, Hauck, Judith, additional, Pongratz, Julia, additional, Pickers, Penelope A., additional, Korsbakken, Jan Ivar, additional, Peters, Glen P., additional, Canadell, Josep G., additional, Arneth, Almut, additional, Arora, Vivek K., additional, Barbero, Leticia, additional, Bastos, Ana, additional, Bopp, Laurent, additional, Chevallier, Frédéric, additional, Chini, Louise P., additional, Ciais, Philippe, additional, Doney, Scott C., additional, Gkritzalis, Thanos, additional, Goll, Daniel S., additional, Harris, Ian, additional, Haverd, Vanessa, additional, Hoffman, Forrest M., additional, Hoppema, Mario, additional, Houghton, Richard A., additional, Hurtt, George, additional, Ilyina, Tatiana, additional, Jain, Atul K., additional, Johannessen, Truls, additional, Jones, Chris D., additional, Kato, Etsushi, additional, Keeling, Ralph F., additional, Goldewijk, Kees Klein, additional, Landschützer, Peter, additional, Lefèvre, Nathalie, additional, Lienert, Sebastian, additional, Liu, Zhu, additional, Lombardozzi, Danica, additional, Metzl, Nicolas, additional, Munro, David R., additional, Nabel, Julia E. M. S., additional, Nakaoka, Shin-ichiro, additional, Neill, Craig, additional, Olsen, Are, additional, Ono, Tsueno, additional, Patra, Prabir, additional, Peregon, Anna, additional, Peters, Wouter, additional, Peylin, Philippe, additional, Pfeil, Benjamin, additional, Pierrot, Denis, additional, Poulter, Benjamin, additional, Rehder, Gregor, additional, Resplandy, Laure, additional, Robertson, Eddy, additional, Rocher, Matthias, additional, Rödenbeck, Christian, additional, Schuster, Ute, additional, Schwinger, Jörg, additional, Séférian, Roland, additional, Skjelvan, Ingunn, additional, Steinhoff, Tobias, additional, Sutton, Adrienne, additional, Tans, Pieter P., additional, Tian, Hanqin, additional, Tilbrook, Bronte, additional, Tubiello, Francesco N., additional, van der Laan-Luijkx, Ingrid T., additional, van der Werf, Guido R., additional, Viovy, Nicolas, additional, Walker, Anthony P., additional, Wiltshire, Andrew J., additional, Wright, Rebecca, additional, Zaehle, Sönke, additional, and Zheng, Bo, additional
Published: 2018
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42. Tracking An Upwelling Patch: Unravel Biogeochemical Cycles And Air-Sea Exchange Of Climate Active Trace Gases

Author: Steinhoff, Tobias
Abstract: Cruise proposal for ship time onboard R/V Poseidon. Eastern Boundary upwelling systems (EBUS) are well known to be highly productive regions. Water from deeper layers is brought to the surface and transports high loads of nutrients and trace gases (e.g. CO2, N2O) and water that is low in oxygen. Due to their geographical location in the tropics/subtropics enough light is available to start strong biological productivity. While water masses move away from the coast to the open ocean trace gases as CO2 and N2O are released to the atmosphere while oxygen is taken up. At the same time CO2 is consumed by biological production and oxygen is produced. Due to this high productivity surfactants are building up at the sea surface. This surface micro layer (SML) is known to dampen air-sea gas exchange. Here we propose to deploy a drifter in a fresh upwelled water parcel in order to follow the water parcel for a time period of 15 days. During this time an extensive measuring program will be conducted consisting of continuous measurements of trace gases in the upwelling patch and the overlying atmosphere, direct flux measurements of CO2, regular determination of the SML and measurements of the physical conditions of the water parcel. This sampling strategy will enable us to unravel the different biological, chemical and physical processes in the upwelling parcel and foster our knowledge about the impact of EBUS on global scales.
Published: 2017
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43. ASTRA-OMZ: Atmosphäre-Ozean-Wechsel-wirkung von Spurenelementen in der Sauerstoffminimumzone : Abschlussbericht zu SO-243

Author: Marandino, Christa A. and Steinhoff, Tobias
Abstract: Laufzeit des Vorhabens:01.06.2015-30.11.2017
Published: 2017

44. ASTRA-OMZ: Atmosphäre-Ozean-Wechsel-wirkung von Spurenelementen in der Sauerstoffminimumzone : Abschlussbericht zu SO-243 : Laufzeit des Vorhabens:01.06.2015-30.11.2017

Author: Marandino, Christa and Steinhoff, Tobias
Subjects: Klimatologie, Spurengas, Sauerstoff, Earth Science, Meeresbiologie, Gelöster organischer Stoff, Biology, Pazifischer Ozean
Abstract: Diagramme
Published: 2017
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45. A new method for continuous measurements of oceanic and atmospheric N2O, CO and CO2: performance of off-axis integrated cavity output spectroscopy (OA-ICOS) coupled to non-dispersive infrared detection (NDIR)

Author: Arevalo-Martinez, Damian L., Beyer, Maya, Krumbholz, Marita, Piller, Inga, Kock, Annette, Steinhoff, Tobias, Körtzinger, Arne, and Bange, Hermann W.
Subjects: lcsh:GE1-350, lcsh:G, lcsh:Geography. Anthropology. Recreation, lcsh:Environmental sciences
Abstract: A new system for continuous, highly resolved oceanic and atmospheric measurements of N2O, CO and CO2 is described. The system is based upon off-axis integrated cavity output spectroscopy (OA-ICOS) and a non-dispersive infrared analyzer (NDIR), both coupled to a Weiss-type equilibrator. Performance of the combined setup was evaluated by testing its precision, accuracy, long-term stability, linearity and response time. Furthermore, the setup was tested during two oceanographic campaigns in the equatorial Atlantic Ocean in order to explore its potential for autonomous deployment onboard voluntary observing ships (VOS). Improved equilibrator response times for N2O (2.5 min) and CO (45 min) were achieved in comparison to response times from similar chamber designs used by previous studies. High stability of the OA-ICOS analyzer was demonstrated by low optimal integration times of 2 and 4 min for N2O and CO respectively, as well as detection limits of < 40 ppt and precision better than 0.3 ppb Hz–1/2. Results from a direct comparison of the method presented here and well-established discrete methods for oceanic N2O and CO2 measurements showed very good consistency. The favorable agreement between underway atmospheric N2O, CO and CO2 measurements and monthly means at Ascension Island (7.96° S 14.4° W) further suggests a reliable operation of the underway setup in the field. The potential of the system as an improved platform for measurements of trace gases was explored by using continuous N2O and CO2 data to characterize the development of the seasonal equatorial upwelling in the Atlantic Ocean during two R/V Maria S. Merian cruises. A similar record of high-resolution CO measurements was simultaneously obtained, offering, for the first time, the possibility of a comprehensive view of the distribution and emissions of these climate-relevant gases in the area studied. The relatively simple underway N2O/CO/CO2 setup is suitable for long-term deployment onboard research and commercial vessels although potential sources of drift, such as cavity temperature, and further technical improvements towards automation, still need to be addressed.
Published: 2013

46. Variability and Trends in Physical and Biogeochemical Parameters of the Mediterranean Sea during a Cruise with RV MARIA S. MERIAN in March 2018.

Author: Hainbucher, Dagmar, Álvarez, Marta, Uceda, Blanca Astray, Bachi, Giancarlo, Cardin, Vanessa, Celentano, Paolo, Chaikakis, Spyros, Montero, Maria del Mar Chavez, Civitarese, Giuseppe, Fajar, Noelia M., Fripiat, Francois, Gerke, Lennart, Gogou, Alexandra, Guallart, Elisa Fernández, Gülk, Birte, Hassoun, Abed El Rahaman, Lange, Nico, Rochner, Andrea, Santinelli, Chiara, and Steinhoff, Tobias
Subjects: OCEAN travel, RESEARCH vessels, HYDROGRAPHY, CRUISE industry, BIOGEOCHEMISTRY, BATHYMETRY
Abstract: The last decades have seen dramatic changes in the hydrography and biogeochemistry of the Mediterranean Sea. The complex bathymetry, highly variable spatial and temporal scales of atmospheric forcing and internal processes contribute to generate complex and unsteady circulation patterns and significant variability in biogeochemical systems. Part of this variability can be influenced by anthropogenic contributions. Consequently, it is necessary to document details and to understand trends in place to better relate the observed processes and to possibly predict the consequences of these changes. In this context we report on data from an oceanographic cruise in the Mediterranean Sea on the German research vessel MARIA S. MERIAN (MSM72) in March 2018. The main objective of the cruise was to contribute to the understanding of long-term changes and trends in physical and biogeochemical parameters, such as the anthropogenic carbon uptake and to further assess the hydrographical situation after the major climatological shifts in the eastern and western part of the basin, known as the Eastern and Western Mediterranean Transients. During the cruise, multidisciplinary measurements were conducted on a predominantly zonal section throughout the Mediterranean Sea, contributing to the global GO-SHIP repeating hydrography program and adhering to the GO-SHIP requirements. [ABSTRACT FROM AUTHOR]
Published: 2020
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47. At‐sea intercomparison of three underway pCO2 systems.

Author: Arruda, Ricardo, Atamanchuk, Dariia, Cronin, Margot, Steinhoff, Tobias, and Wallace, Douglas W. R.
Subjects: PARTIAL pressure, SURFACE pressure, TEMPERATURE measurements, DATA quality, SYSTEMS development
Abstract: Ocean surface partial pressure of carbon dioxide (pCO2) is a key factor controlling air–sea CO2 fluxes. Most surface pCO2 data are collected with relatively large and complex air–water equilibrators coupled to stand‐alone infrared analyzers installed on Ships of OPportunity (SOOP‐CO2). This approach has proven itself through years of successful deployments, but expansion and sustainability of the future measurement network faces challenges in terms of certification, autonomy, and maintenance, which motivates development of new systems. Here, we compare performance of three underway pCO2 measurement systems (General Oceanics, SubCtech, and Pro‐Oceanus), including a recently developed compact flow‐through, sensor‐based system. The systems were intercompared over a period of 34 days during two crossings of the subpolar North Atlantic Ocean. With a mean difference from the General Oceanics system of −5.7 ± 4.0 μatm (Pro‐Oceanus) and −4.7 ± 2.9 μatm (SubCtech) during the 1st crossing, our results indicate potential for good agreement between the systems. The study highlighted the challenge of assuring accuracy over long periods of time, particularly seen in a worse agreement during the 2nd crossing, and revealed a number of sources of systematic errors. These can influence accuracy of the measurements, agreement between systems and include slow response of membrane‐based systems to pCO2 changes, "within‐ship" respiration due to biofouling, and bias in measurement of the temperature of equilibration. These error sources can be controlled or corrected for, however, if unidentified, their magnitude can be significant relative to accuracy criteria assigned to the highest‐quality data in global databases. The advantages of the compact flow‐through system are presented along with a discussion of future solutions for improving data quality. [ABSTRACT FROM AUTHOR]
Published: 2020
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48. An Alternative to Static Climatologies: Robust Estimation of Open Ocean CO2 Variables and Nutrient Concentrations From T, S, and O2 Data Using Bayesian Neural Networks

Author: Bittig, Henry C., primary, Steinhoff, Tobias, additional, Claustre, Hervé, additional, Fiedler, Björn, additional, Williams, Nancy L., additional, Sauzède, Raphaëlle, additional, Körtzinger, Arne, additional, and Gattuso, Jean-Pierre, additional
Published: 2018
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49. A Detailed View on the Seasonality of Stable Carbon Isotopes Across the North Atlantic

Author: Becker, Meike, primary, Steinhoff, Tobias, additional, and Körtzinger, Arne, additional
Published: 2018
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50. A multi-decade record of high-quality fCO2 data in version 3 of the Surface Ocean CO2 Atlas (SOCAT)

Author: Bakker, Dorothee C. E., Pfeil, Benjamin, Landa, Camilla S., Metzl, Nicolas, O'Brien, Kevin M., Olsen, Are, Smith, Karl M., Cosca, Catherine E., Harasawa, Sumiko, Jones, Stephen D., Nakaoka, Shin-Ichiro, Nojiri, Yukihiro, Schuster, Ute, Steinhoff, Tobias, Sweeney, Colm, Takahashi, Taro, Tilbrook, Bronte, Wada, Chisato, Wanninkhof, Rik H., Alin, Simone R., Balestrini, Carlos F., Barbero, Leticia, Bates, Nicholas R., Bianchi, Alejandro A., Bonou, Frédéric, Boutin, Jacqueline, Bozec, Yann, Burger, Eugene F., Cai, Wei-Jun, Castle, Robert D., Chen, Liqi, Chierici, Melissa, Currie, Kim, Evans, Wiley, Featherstone, Charles, Feely, Richard A., Fransson, Agneta, Goyet, Catherine, Greenwood, Naomi, Gregor, Luke, Hankin, Steven, Hardman-Mountford, Nick J., Harlay, Jérôme, Hauck, Judith, Hoppema, Mario, Humphreys, Matthew P., Hunt, Christopher W., Huss, Betty, Ibánhez, J. Severino P., Johannessen, Truls, Keeling, Ralph F., Kitidis, Vassilis, Körtzinger, Arne, Kozyr, Alex, Krasakopoulou, Evangelia, Kuwata, Akira, Landschützer, Peter, Lauvset, Siv K., Lefèvre, Nathalie, Lo Monaco, Claire, Manke, Ansley B., Mathis, Jeremy T., Merlivat, Liliane, Millero, Frank J., Monteiro, Pedro M. S., Munro, David R., Murata, Akihiko, Newberger, Timothy, Omar, Abdirahman M., Ono, Tsuneo, Paterson, Kristina, Pearce, David, Pierrot, Denis, Robbins, Lisa L., Saito, Shu, Salisbury, Joseph E., Schlitzer, Reiner, Schneider, Bernd, Schweitzer, Roland, Sieger, Rainer, Skjelvan, Ingunn, Sullivan, Kevin F., Sutherland, Stewart C., Sutton, Adrienne J., Tadokoro, Kazuaki, Telszewski, Maciej, Tuma, Matthias, van Heuven, Steven M. A. C., Vandemark, Doug, Ward, Brian, Watson, Andrew J., Xu, Suqing, Centre for Ocean and Atmospheric, school of Environmental Sciences, University of East Anglia [Norwich] (UEA), University of Bergen (UiB), Bjerknes Centre for Climate Research (BCCR), Department of Biological Sciences [Bergen] (BIO / UiB), University of Bergen (UiB)-University of Bergen (UiB), Équipe CO2 (E-CO2), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), NOAA Pacific Marine Environmental Laboratory [Seattle] (PMEL), National Oceanic and Atmospheric Administration (NOAA), Joint Institute for the Study of the Atmosphere and Ocean (JISAO), University of Washington [Seattle], National Institute for Environmental Studies (NIES), University of Exeter, Helmholtz Centre for Ocean Research [Kiel] (GEOMAR), NOAA Earth System Research Laboratory (ESRL), Lamont-Doherty Earth Observatory (LDEO), Columbia University [New York], CSIRO Marine and Atmospheric Research (CSIRO-MAR), Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML), Departamento de Oceanografia, Servicio de Hidrografía Naval, Cooperative Institute for Marine and Atmospheric Studies, Rosenstiel School for Marine and Atmospheric Science (CIMAS), Rosenstiel School of Marine and Atmospheric Science (RSMAS), University of Miami [Coral Gables]-University of Miami [Coral Gables], Ocean and Earth Science [Southampton], University of Southampton-National Oceanography Centre (NOC), Departmento de Engenharia de Produção, Centro de Estudos e Ensaios em Risco e Modelagem Ambiental, Universidade Federal de Pernambuco [Recife] (UFPE), Interactions et Processus au sein de la couche de Surface Océanique (IPSO), Adaptation et diversité en milieu marin (AD2M), Station biologique de Roscoff [Roscoff] (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), School of Marine Science and Policy, University of Delaware [Newark], The Third Institute of Oceanography SOA, Department of Marine Sciences, University of Gothenburg (GU), National Institute of Water and Atmospheric Research [Wellington] (NIWA), Norwegian Polar Institute, 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), Centre for Environment, Fisheries and Aquaculture Science [Lowestoft] (CEFAS), Ocean Systems and Climate Group, CSIR, CSIRO Oceans and Atmosphere, CISRO Oceans and Atmosphere, University of Hawai‘i [Mānoa] (UHM), Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI), Ocean Process Analysis Laboratory, University of New Hampshire (UNH), IRD Lago Sul, Brazil, University of California [San Diego] (UC San Diego), University of California (UC), Plymouth Marine Laboratory (PML), Oak Ridge National Laboratory [Oak Ridge] (ORNL), UT-Battelle, LLC, University of the Aegean, Tohoku National Fisheries Research Institute, National Fisheries Research Institute, Max-Planck-Institut für Meteorologie (MPI-M), Max-Planck-Gesellschaft, Geophysical Institute [Bergen] (GFI / BiU), Austral, Boréal et Carbone (ABC), Department of Ocean Sciences, University of Miami [Coral Gables], Department of Atmospheric and Oceanic Sciences [Boulder] (ATOC), University of Colorado [Boulder], Institute of Arctic Alpine Research [University of Colorado Boulder] (INSTAAR), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado [Boulder]-National Oceanic and Atmospheric Administration (NOAA), National Research Institute for Fisheries Science,Japan Fisheries Research and Education Agency, Université Paris Diderot - Paris 7 (UPD7), United States Geological Survey [Reston] (USGS), Japan Meteorological Agency (JMA), Ocean Process Analysis Laboratory (OPAL), Leibniz Institute for Baltic Sea Research Warnemünde, Weathertop consulting LLC, International Ocean Carbon Coordination Project, WCRP Joint planning staff, World Meteorological Organization (WCRP), Royal Netherlands Institute for Sea Research (NIOZ), AirSea Laboratory, School of Physics and Ryan Institute, National University of Ireland [Galway] (NUI Galway), Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), University of Leeds, College of Life and Environmental Sciences [Exeter], Met Eireann, CSIRO Wealth from Oceans National Research Flagship and Antarctic Climate and Ecosystems CRC, Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research (UFZ), Bermuda Institute of Ocean Sciences (BIOS), Centre de résonance magnétique des systèmes biologiques (CRMSB), Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB), CHImie Marine (CHIM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff [Roscoff] (SBR), Department of Chemistry, Computer Science Department (UBC-Computer Science), University of British Columbia (UBC), Laboratoire de Biophysique et Dynamique des Systèmes Intégrés (BDSI), Université de Perpignan Via Domitia (UPVD), Oceans and Atmosphere Flagship (CSIRO), CSIRO Oceans and Atmosphere Flagship, Department of Oceanography (DOCEAN), Federal University of Pernambuco [Recife], University of California, Plymouth Marine Laboratory, Christian-Albrechts-Universität zu Kiel (CAU), Department of Civil and Environmental Engineering [Berkeley] (CEE), University of California [Berkeley], University of California-University of California, University of Wisconsin Whitewater, National Institute of Advanced Industrial Science and Technology (AIST), Department of Computer Science [Royal Holloway], Royal Holloway [University of London] (RHUL), Cooperative Institute for Marine and Atmospheric Studies (CIMAS), Max Planck Institute for Chemical Ecology, School of Physics [NUI Galway], School of Environmental Sciences [Norwich], College of Life and Environmental Sciences, University of Exeter, 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)-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), Institute of Arctic and Alpine Research (INSTAAR), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), University of California [Berkeley] (UC Berkeley), and University of California (UC)-University of California (UC)
Subjects: lcsh:GE1-350, lcsh:Geology, [SDU]Sciences of the Universe [physics], lcsh:QE1-996.5, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], lcsh:Environmental sciences, ComputingMilieux_MISCELLANEOUS, [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography
Abstract: The Surface Ocean CO2 Atlas (SOCAT) is a synthesis of quality-controlled fCO2 (fugacity of carbon dioxide) values for the global surface oceans and coastal seas with regular updates. Version 3 of SOCAT has 14.7 million fCO2 values from 3646 data sets covering the years 1957 to 2014. This latest version has an additional 4.6 million fCO2 values relative to version 2 and extends the record from 2011 to 2014. Version 3 also significantly increases the data availability for 2005 to 2013. SOCAT has an average of approximately 1.2 million surface water fCO2 values per year for the years 2006 to 2012. Quality and documentation of the data has improved. A new feature is the data set quality control (QC) flag of E for data from alternative sensors and platforms. The accuracy of surface water fCO2 has been defined for all data set QC flags. Automated range checking has been carried out for all data sets during their upload into SOCAT. The upgrade of the interactive Data Set Viewer (previously known as the Cruise Data Viewer) allows better interrogation of the SOCAT data collection and rapid creation of high-quality figures for scientific presentations. Automated data upload has been launched for version 4 and will enable more frequent SOCAT releases in the future. High-profile scientific applications of SOCAT include quantification of the ocean sink for atmospheric carbon dioxide and its long-term variation, detection of ocean acidification, as well as evaluation of coupled-climate and ocean-only biogeochemical models. Users of SOCAT data products are urged to acknowledge the contribution of data providers, as stated in the SOCAT Fair Data Use Statement. This ESSD (Earth System Science Data) "living data" publication documents the methods and data sets used for the assembly of this new version of the SOCAT data collection and compares these with those used for earlier versions of the data collection (Pfeil et al., 2013; Sabine et al., 2013; Bakker et al., 2014). Individual data set files, included in the synthesis product, can be downloaded here: doi:10.1594/PANGAEA.849770. The gridded products are available here: doi:10.3334/CDIAC/OTG.SOCAT_V3_GRID.
Published: 2016

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