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| Leseurre, Coraline; Lo Monaco, Claire; Reverdin, Gilles; Metzl, Nicolas; Fin, Jonathan; Olafsdottir, Solveig; Racapé, Virginie. |
| The North Atlantic is one of the major ocean sinks for natural and anthropogenic atmospheric CO2. Given the variability of the circulation, convective processes or warming–cooling recognized in the high latitudes in this region, a better understanding of the CO2 sink temporal variability and associated acidification needs a close inspection of seasonal, interannual to multidecadal observations. In this study, we investigate the evolution of CO2 uptake and ocean acidification in the North Atlantic Subpolar Gyre (50–64∘ N) using repeated observations collected over the last 3 decades in the framework of the long-term monitoring program SURATLANT (SURveillance de l'ATLANTique). Over the full period (1993–2017) pH decreases (−0.0017 yr−1) and fugacity of CO2... |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00631/74356/74023.pdf |
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| Reverdin, Gilles; Metzl, Nicolas; Olafsdottir, Solveig; Racape, Virginie; Takahashi, Taro; Benetti, Marion; Valdimarsson, Hedinn; Benoit-cattin, Alice; Danielsen, Magnus; Fin, Jonathan; Naamar, Aicha; Pierrot, Denis; Sullivan, Kevin; Bringas, Francis; Goni, Gustavo. |
| This paper presents the SURATLANT data set (SURveillance ATLANTique). It consists of individual data of temperature, salinity, parameters of the carbonate system, nutrients, and water stable isotopes (delta O-18 and delta D) collected mostly from ships of opportunity since 1993 along transects between Iceland and New-foundland (https://doi.org/10.17882/54517). We discuss how the data are validated and qualified, their accuracy, and the overall characteristics of the data set. The data are used to reconstruct seasonal cycles and interannual anomalies, in particular of sea surface salinity (S SS); inorganic nutrients; dissolved inorganic carbon (DIC); and its isotopic composition delta C-13(DIC), total alkalinity (A(t)), and water isotope concentrations.... |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00466/57721/59911.pdf |
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