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Dataset Overview | National Centers for Environmental Information (NCEI)

Global surface ocean pH, acidity, and Revelle Factor on a 1x1 degree global grid from 1770 to 2100 (NCEI Accession 0206289)

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This dataset contains spatial distribution of surface ocean pH (total hydrogen scale), acidity (or hydrogen ion activity, unit: nmol/kg, or 10^-9 mol/kg) and Revelle Factor (a measure of the ocean's 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 years from 1770 to 2100 (1770, 1780, 1790, ..., 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). By linking the modeled pH trends to the observed modern pH distribution, the climatology benefits from recent improvements in both model design and observational data coverage, and is likely to provide improved regional OA trajectories than the model output could alone, 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 dataset is available in netCDF format. Some plots and animation files are also available for your presentation purposes. 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), Surface ocean pH and buffer capacity: past, present and future, Nature Scientific Reports, 9:18624, https://doi.org/10.1038/s41598-019-55039-4.
  • Cite as: Jiang, Li-Qing; Carter, Brendan R.; Feely, Richard A.; Lauvset, Siv K.; Olsen, Are (2019). Global surface ocean pH, acidity, and Revelle Factor on a 1x1 degree global grid from 1770 to 2100 (NCEI Accession 0206289). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/kgqr-9h49. Accessed [date].
gov.noaa.nodc:0206289
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Distribution Formats
  • Originator data format
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Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 1770-01-01 to 2100-12-31
Spatial Bounding Box Coordinates
West: -179.5
East: 179.5
South: -89.5
North: 89.5
Spatial Coverage Map
General Documentation
Associated Resources
  • Jiang, L.-Q., B. R. Carter, R. A. Feely, S. Lauvset, and A. Olsen (2019), Surface ocean pH and buffer capacity: past, present and future, Nature Scientific Reports, 9:18624, https://doi.org/10.1038/s41598-019-55039-4.
  • Jiang, Li-Qing; Feely, Richard A. (2015). Aragonite saturation state gridded to 1x1 degree latitude and longitude at depth levels of 0, 50, 100, 200, 500, 1000, 2000, 3000, and 4000 meters in the global oceans (NCEI Accession 0139360). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5q81b4p.
  • NOAA National Centers for Environmental Information (2022). Ocean Carbon and Acidification Data System (OCADS). NOAA National Centers for Environmental Information. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
Publication Dates
  • publication: 2019-12-06
  • revision: 2022-01-14
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
Citation of the paper: Jiang, L.-Q., B. R. Carter, R. A. Feely, S. Lauvset, and A. Olsen (2019), Surface ocean pH and buffer capacity: past, present and future, Nature Scientific Reports, 9:18624, https://doi.org/10.1038/s41598-019-55039-4.

Dataset: https://doi.org/10.25921/kgqr-9h49.
Purpose This dataset is available to the public for a wide variety of uses including scientific research and analysis.
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Jiang, Li-Qing; Carter, Brendan R.; Feely, Richard A.; Lauvset, Siv K.; Olsen, Are (2019). Global surface ocean pH, acidity, and Revelle Factor on a 1x1 degree global grid from 1770 to 2100 (NCEI Accession 0206289). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/kgqr-9h49. Accessed [date].
Cited Authors
Principal Investigators
Contributors
Resource Providers
Publishers
Acknowledgments
  • Funding Information: NOAA Ocean Acidification Program (Scientific stewardship of the OADS project (Jiang NCEI), 17910)
  • Funding Information: NOAA Ocean Acidification Program (OAP) (Ocean Acidification Data Stewardship (OADS) Project)
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords OCADS Study Type
  • Climatology
  • Model output
Provider Variable Abbreviations
  • H+
  • Revelle Factor
  • pH
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords Provider Geographic Names
  • Arctic Ocean
  • Atlantic Ocean
  • Global Ocean
  • Indian Ocean
  • Pacific Ocean
  • Southern Ocean
Project keywords NODC PROJECT NAMES THESAURUS Ocean Acidification Search Keywords
  • Ocean Acidification Program (OAP)
  • Ocean Carbon and Acidification Data System (OCADS) Project
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Jiang, Li-Qing; Carter, Brendan R.; Feely, Richard A.; Lauvset, Siv K.; Olsen, Are (2019). Global surface ocean pH, acidity, and Revelle Factor on a 1x1 degree global grid from 1770 to 2100 (NCEI Accession 0206289). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/kgqr-9h49. Accessed [date].
Access Constraints
  • 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.
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Processing Steps
  • 2019-12-06T18:36:25Z - NCEI Accession 0206289 v1.1 was published.
  • 2022-01-14T07:07:30Z - NCEI Accession 0206289 was revised and v1.2 was published.
    Rationale: Additional metadata files were received or created for this dataset. These updates were copied into the about/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: pH; Abbreviation: pH; pH scale: Total hydrogen scale; Observation type: Model output; In-situ / Manipulation / Response variable: in-situ; Measured or calculated: calculated; Calculation method and parameters: Please refer to Jiang et al. (2019) for more details.; At what temperature was pH reported: in-situ SST; Researcher name: Li-Qing Jiang; Researcher institution: University of Maryland.
  • Parameter or Variable: Hydrogen ion activity; Abbreviation: H+; Unit: nmol/kg (or 10^-9 mol/kg); Observation type: Model output; In-situ / Manipulation / Response variable: in-situ; Measured or calculated: calculated; Researcher name: Li-Qing Jiang; Researcher institution: University of Maryland.
  • Parameter or Variable: Revelle Factor; Abbreviation: Revelle Factor; Unit: unitless; Observation type: Model output; In-situ / Manipulation / Response variable: in-situ; Measured or calculated: calculated; Detailed sampling and analyzing information: Revelle Factor is a measure of the ocean's buffer capacity for the carbonate system in seawater or freshwater. It is defined as the ratio between the fractional change in pCO2 to the fractional change in dissolved inorganic carbon (DIC) (Eqn. 1) at constant temperature, salinity and TA25. The higher the Revelle factor, the lower the ocean's buffer capacity, and the faster the change of pCO2 in the ocean at a given DIC change.; Researcher name: Li-Qing Jiang; Researcher institution: University of Maryland .
Last Modified: 2024-03-28T12:44:57Z
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