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Adcock, Karina E. 
ORCID: https://orcid.org/0000-0002-8224-5399, Pickers, Penelope A., Manning, Andrew C. ORCID: https://orcid.org/0000-0001-6952-7773, Forster, Grant L., Fleming, Leigh S. ORCID: https://orcid.org/0000-0002-3114-8740, Barningham, Thomas, Wilson, Philip A., Kozlova, Elena A., Hewitt, Marica, Etchells, Alex J. and Macdonald, Andy J.
(2023)
12 years of continuous atmospheric O2, CO2 and APO data from Weybourne Atmospheric Observatory in the United Kingdom.
Earth System Science Data, 15 (11).
5183–5206.
ISSN 1866-3508
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Abstract
We present a 12-year time series of continuous atmospheric measurements of O2 and CO2 at the Weybourne Atmospheric Observatory in the United Kingdom. These measurements are combined into the term atmospheric potential oxygen (APO), a tracer that is invariant to terrestrial biosphere fluxes. The CO2, O2 and APO datasets discussed are hourly averages between May 2010 and December 2021. We include details of our measurement system and calibration procedures, and describe the main long-term and seasonal features of the time series. The 2min repeatability of the measurement system is approximately ±3 per meg for O2 and approximately ±0.005ppm for CO2. The time series shows average long-term trends of 2.40ppmyr-1 (2.38 to 2.42) for CO2, -24.0 per megyr-1 for O2 (-24.3 to -23.8) and -11.4 per megyr-1 (-11.7 to -11.3) for APO, over the 12-year period. The average seasonal cycle peak-to-peak amplitudes are 16ppm for CO2, 134 per meg for O2 and 68 per meg for APO. The diurnal cycles of CO2 and O2 vary considerably between seasons. The datasets are publicly available at 10.18160/Z0GF-MCWH (Adcock et al., 2023) and have many current and potential scientific applications in constraining carbon cycle processes, such as investigating air-sea exchange of CO2 and O2 and top-down quantification of fossil fuel CO2.
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| Additional Information: | Funding information: Atmospheric O2 and CO2 measurements at WAO were funded by the U.K. Natural Environment Research Council (NERC) (grant nos. NE/C002504/1, NE/I013342/1, NE/I02934X/1, QUEST010005, NE/N016238/1, and NE/R011532/1), and by the EU FP6 Integrated Project CarboOcean (grant no. 511176 GOCE). The WAO atmospheric O2 and CO2 measurements have also been supported by the National Centre for Atmospheric Science (NCAS). Philip A. Wilson was supported by a NERC PhD studentship (grant no. NE/F005733/1) from 2008 to 2012. Philip A. Wilson was supported by a NERC PhD studentship (grant no. NE/K500896/1) from 2012 to 2016. Thomas Barningham was supported by a NERC PhD studentship (grant no. NE/L50158X/1) from 2014 to 2018. Leigh S. Fleming was supported by a NERC PhD studentship (grant no. NE/L002582/1) from 2018 to 2022. Karina E. Adcock and Penelope A. Pickers received funding from the NERC project DARE-UK (grant no. NE/S004521/1). Penelope A. Pickers and Andrew C. Manning received funding from the European Union's Horizon 2020 Research and Innovation Programme (grant no. 776186). Karina E. Adcock, Penelope A. Pickers and Andrew C. Manning received funding from European Union's Horizon Europe Research and Innovation programme under HORIZON-CL5-2022-D1-02 (grant no. 101081430 – PARIS). |
| Faculty \ School: | Faculty of Science > School of Environmental Sciences University of East Anglia Research Groups/Centres > Theme - ClimateUEA Faculty of Science |
| UEA Research Groups: | Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences University of East Anglia Schools > Faculty of Science > Tyndall Centre for Climate Change Research Faculty of Science > Research Centres > Tyndall Centre for Climate Change Research |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 27 Jul 2023 14:30 |
| Last Modified: | 04 Mar 2024 18:22 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/92716 |
| DOI: | 10.5194/essd-2023-129 |
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