Biogeosciences
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Articles | Volume 12, issue 5
Articles | Volume 12, issue 5
https://doi.org/10.5194/bg-12-1285-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-12-1285-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 12, issue 5
Research article
 | 
02 Mar 2015
Research article |  | 02 Mar 2015

Trends and drivers in global surface ocean pH over the past 3 decades

S. K. Lauvset, N. Gruber, P. Landschützer, A. Olsen, and J. Tjiputra

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Short summary
This paper utilizes the SOCATv2 data product to calculate surface ocean pH. The pH data are divided into 17 biomes, and a linear regression is used to derive the long-term trend of pH in each biome. The results are consistent with the trends observed at time series stations. The uncertainties are too large for a mechanistic understanding of the driving forces behind the trend, but there are indications that concurrent changes in chemistry create spatial variability.
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