Articles | Volume 16, issue 4
https://doi.org/10.5194/os-16-847-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-16-847-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
21 Jul 2020
Research article |
| 21 Jul 2020
| 21 Jul 2020
Current estimates of K1* and K2* appear inconsistent with measured CO2 system parameters in cold oceanic regions
Olivier Sulpis
CORRESPONDING AUTHOR
Department of Earth Sciences, Utrecht University, Utrecht, the
Netherlands
Department of Earth and Planetary Sciences, McGill University,
Montreal, Canada
Siv K. Lauvset
NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway
Mathilde Hagens
Soil Chemistry and Chemical Soil Quality, Wageningen University and
Research, Wageningen, the Netherlands
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- Uncertainty sources for measurable ocean carbonate chemistry variables B. Carter et al. 10.1002/lno.12477
- Spectrophotometric determination of the bicarbonate dissociation constant in seawater K. Schockman & R. Byrne 10.1016/j.gca.2021.02.008
- An inter-comparison of autonomous in situ instruments for ocean CO2 measurements under laboratory-controlled conditions Q. Shangguan et al. 10.1016/j.marchem.2022.104085
- Surface ocean carbon budget in the 2017 south Georgia diatom bloom: Observations and validation of profiling biogeochemical argo floats A. Coggins et al. 10.1016/j.dsr2.2023.105275
- Expanding seawater carbon dioxide and methane measuring capabilities with a Seaglider C. Hauri et al. 10.5194/os-20-1403-2024
- Preliminary assessment of carbonic acid dissociation constants: Insights from observations in China's east coastal oceans P. Wang et al. 10.1016/j.marenvres.2023.106219
- Random and systematic uncertainty in ship‐based seawater carbonate chemistry observations B. Carter et al. 10.1002/lno.12674
- Evaluation of the temperature dependence of dissociation constants for the marine carbon system using pH and certified reference materials R. Woosley 10.1016/j.marchem.2020.103914
- High-frequency, year-round time series of the carbonate chemistry in a high-Arctic fjord (Svalbard) J. Gattuso et al. 10.5194/essd-15-2809-2023
- PyCO2SYS v1.8: marine carbonate system calculations in Python M. Humphreys et al. 10.5194/gmd-15-15-2022
- Gaining insights into the seawater carbonate system using discrete fCO2 measurements M. García-Ibáñez et al. 10.1016/j.marchem.2022.104150
- Recent developments in ionophore-based potentiometric electrochemical sensors for oceanic carbonate detection S. Toala et al. 10.1039/D3SD00232B
- Early Wintertime CO2 Uptake in the Western Arctic Ocean A. Murata et al. 10.1029/2021JC018037
- Spectrophotometrically derived seawater CO2‐system assessments: Parameter calculations using pH do not require measurements at standard temperatures K. Schockman et al. 10.1002/lno.12593
- Coastal Ocean Data Analysis Product in North America (CODAP-NA) – an internally consistent data product for discrete inorganic carbon, oxygen, and nutrients on the North American ocean margins L. Jiang et al. 10.5194/essd-13-2777-2021
- Physical and biological controls on anthropogenic CO2 sink of the Ross Sea G. Ingrosso et al. 10.3389/fmars.2022.954059
- Contrasting drivers and trends of ocean acidification in the subarctic Atlantic F. Pérez et al. 10.1038/s41598-021-93324-3
- OceanSODA-MDB: a standardised surface ocean carbonate system dataset for model–data intercomparisons P. Land et al. 10.5194/essd-15-921-2023
- Productivity of mixed kelp communities in an Arctic fjord exhibit tolerance to a future climate C. Miller et al. 10.1016/j.scitotenv.2024.172571
- Ocean acidification enhances primary productivity and nocturnal carbonate dissolution in intertidal rock pools N. Dorey et al. 10.5194/bg-20-4289-2023
- Ocean Biogeochemical Signatures of the North Pacific Blob S. Mogen et al. 10.1029/2021GL096938
Latest update: 20 Nov 2024
Short summary
As direct measurements of seawater carbonate system variables, such as pH, are difficult to obtain, scientists use equilibrium constants to compute them from known variables. Using a compilation of in situ data, we show that the set of equilibrium constants preferred by the community is not consistent with measurements in cold, polar waters, where human-made ocean acidification is spreading rapidly. Closing knowledge gaps regarding seawater carbon chemistry in polar regions should be a priority.
As direct measurements of seawater carbonate system variables, such as pH, are difficult to...
