Articles | Volume 11, issue 1
Earth Syst. Sci. Data, 11, 421–439, 2019
https://doi.org/10.5194/essd-11-421-2019
Earth Syst. Sci. Data, 11, 421–439, 2019
https://doi.org/10.5194/essd-11-421-2019

  26 Mar 2019

26 Mar 2019

Autonomous seawater pCO2 and pH time series from 40 surface buoys and the emergence of anthropogenic trends

Adrienne J. Sutton et al.

Data sets

Autonomous seawater partial pressure of carbon dioxide (pCO2) and pH time series from 40 surface buoys between 2004 and 2017 (NCEI Accession 0173932) A. J. Sutton, R. A. Feely, S. Maenner-Jones, S. Musielewicz, J. Osborne, C. Dietrich, N. Monacci, J. Cross, R. Bott, and A. Kozyr https://doi.org/10.7289/V5DB8043

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Short summary
Long-term observations are critical records for distinguishing natural cycles from climate change. We present a data set of 40 surface ocean CO2 and pH time series that suggests the time length necessary to detect a trend in seawater CO2 due to uptake of atmospheric CO2 varies from 8 years in the least variable ocean regions to 41 years in the most variable coastal regions. This data set provides a tool to evaluate natural cycles of ocean CO2, with long-term trends emerging as records lengthen.