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.

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Latest update: 26 Feb 2021
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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.