2004 to 2017 time series of autonomous seawater partial pressure of carbon dioxide (pCO2) and pH, alongside sea surface temperature and salinity, collected from 40 surface buoys. The dataset, produced by NOAA's National Centers for Environmental Information (NCEI), includes measurements from 17 oceanic and 13 coastal sites, with 10 sites located on coral reefs.
Use Cases
- Analyze decadal trends in seawater pCO2 to detect anthropogenic signals, referencing the reported 1.9+/-0.3 µatm yr-1 trend at the WHOTS site.
- Model the relationship between sea surface temperature, salinity, and pH across different oceanic and coastal regimes.
- Compare sub-seasonal to interannual variability in carbonate chemistry between the 17 open ocean and 13 coastal monitoring sites.
- Estimate the 'time of emergence' for anthropogenic trends in pH at coral reef sites using the provided 9 to 22 year range estimates.
Strengths
- 40 distinct monitoring sites provide spatial coverage across diverse marine environments.
- Time series span up to 13 years (2004-2017), enabling analysis of daily to decadal variability.
- Includes concurrent measurements of pCO2, pH, sea surface temperature, and salinity for integrated analysis.
Limitations
- Data collection ended in 2017, limiting analysis of recent trends in ocean acidification.
- The number of data rows per time series is unknown, preventing assessment of temporal resolution or sample size.
- Only two open ocean time series (WHOTS and Stratus) are noted as long enough to conclusively show an anthropogenic trend.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI Accession 0173932).
- Collection Method
- Autonomous measurements from moored surface buoys.
- Time Range
- 2004 to 2017.
- Freshness
- Final update was 2017-12-31; the description notes future updates are possible but not guaranteed.
- Geography
- 40 sites globally, including 17 oceanic, 13 coastal, and 10 coral reef locations.