Global surface ocean pH, acidity, and buffer capacity on a 1x1 degree global grid in all 12 months from 1770 to 2100 (NCEI Accession 0206289)

This archival package contains spatial distribution of surface ocean pH (Total scale), Hydrogen ion activity (unit: nmol/kg, or 10^-9 mol/kg) and Revelle Factor (a measure of buffer capacity, unitless) on a 1x1 degree global grid (Longitude: [20.5:1:379.5], Latitude: [-89.5:1:89.5]) in all 12 months of the year from 1770 to 2100. This data product is produced by combining a recent observational seawater carbon dioxide (CO2) data product, i.e., the 6th version of the Surface Ocean CO2 Atlas (1991-2018, ~23 million observations), with temporal trends at individual locations of the global ocean from a robust Earth System Model (ESM2M), to provide a high-resolution regionally varying view of global surface ocean pH, acidity, and the Revelle Factor. The climatology extends from the pre-Industrial era (1770 C.E.) to the end of this century under historical atmospheric CO2 concentrations (pre-2005) and the Representative Concentrations Pathways (RCP2.6, RCP4.5, RCP6.0 and RCP8.5, post-2005) of the Intergovernmental Panel on Climate Change (IPCC)’s 5th Assessment Report (AR5). As a result of the enhanced observational data coverage, this climatology is likely to provide significantly improved regional OA trajectories than the model output could alone, and therefore, will help guide the regional OA adaptation strategies. Revelle Factor is defined as the ratio between the fractional change in pCO2 to the fractional change in dissolved inorganic carbon (DIC). This data set is available in netCDF format. For details of the calculation and gridding method, please refer to Jiang, L.-Q., B. R. Carter, R. A. Feely, S. Lauvset, and A. Olsen (2019), Ocean acidity and buffer capacity: past, present and future. Nature Scientific Reports, doi:

Data and Resources

Additional Info

Field Value
Last Updated November 3, 2019, 21:29
Created November 3, 2019, 21:29
access_constraints ["Cite as: Jiang, Li-Qing; Carter, Brendan R.; Feely, Richard A.; Lauvset, Siv K.; Olsen, Are (2019). Global surface ocean pH, acidity, and buffer capacity on a 1x1 degree global grid in all 12 months from 1770 to 2100 (NCEI Accession 0206289). [indicate subset used]. NOAA National Centers for Environmental Information. Unpublished Dataset. Accessed [date].", "Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose."]
bbox-east-long 179.5
bbox-north-lat 89.5
bbox-south-lat -89.5
bbox-west-long -179.5
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2019-11-01"}]
frequency-of-update asNeeded
graphic-preview-description NOAA logo.
graphic-preview-type PNG
guid gov.noaa.nodc:0206289
licence ["Data in this archival information package are not currently available for public download from NCEI. Please contact NCEI Information Services directly for access to these data.", "accessLevel: Public"]
metadata-date 2019-11-01T19:37:31Z
metadata-language eng
progress pending
resource-type model
responsible-party [{"name": "", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-179.5, -89.5], [179.5, -89.5], [179.5, 89.5], [-179.5, 89.5], [-179.5, -89.5]]]}
spatial_harvester true
temporal-extent-begin 1770-01-01
temporal-extent-end 2100-12-31