Global mean surface seawater acidity (source: CMEMS) - Products Datasets

Dataset Details

Global mean surface seawater acidity (source: CMEMS)

The indicator shows the global ocean surface acidity expressed as mean pH value. The decline in pH observed on a global scale corresponds to an increase in the acidity of ocean water and vice versa. An increase of atmospheric CO2 enhances the absorption of CO2 by oceans, which correlates directly with a fall in pH values of the oceans. The Copernicus Marine Environment Monitoring Service (CMEMS) provides annual data on mean ocean surface acidity using in situ data and remote sensing data, as well as empirical relationships.

Additional information

Code: sdg_14_50
Last update: 09/03/22
Oldest data: 1985
Most recent data: 2020
Number of values: 36
Themes: General and regional statistics