Ocean Carbon Dioxide and pH Time Series from 40 Surface Buoys, 2004-2017

2004 to 2017 autonomous seawater measurements of partial pressure of carbon dioxide (pCO2) and pH from 40 surface buoys. The dataset includes sea surface temperature and salinity time series from 17 oceanic and 13 coastal regimes, including 10 coral reef sites. It was produced by the National Oceanic and Atmospheric Administration and provides a synthesis product for evaluating natural and anthropogenic trends in ocean carbonate chemistry.

Use Cases

• Detecting anthropogenic trends in seawater pCO2 and pH based on multi-year time series data.
• Characterizing sub-seasonal to decadal variability in ocean carbonate chemistry across different regimes.
• Evaluating climatology and natural variability of surface ocean conditions in coastal and open ocean sites.
• Assessing the time of emergence for climate change signals at coral reef monitoring stations.

Strengths

• Includes 40 distinct time series stations established between 2004 and 2013.
• Covers a wide range of conditions across 17 oceanic, 13 coastal, and 10 coral reef sites.
• Provides well-constrained daily to interannual variability with estimates for decadal trends.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Autonomous moored surface ocean pCO2 and pH time series measurements from buoys.

Time Range

2004 to 2017

Freshness

Last updated 2026-03-05 22:44:45.487543; freshness should be verified.

Geography

Global, covering 17 open ocean sites, 13 coastal sites, and 10 coral reef sites.