Skip to main content
Dataset Overview | National Centers for Environmental Information (NCEI)

A combined globally mapped carbon dioxide (CO2) flux estimate based on the Surface Ocean CO2 Atlas Database (SOCAT) and Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) biogeochemistry floats from 1982 to 2017 (NCEI Accession 0191304)

browse graphicPreview graphic
This dataset contains a combined globally mapped estimate of the air-sea exchange of carbon dioxide (CO2) based on Surface Ocean CO2 Atlas Database (SOCAT) partial pressure of CO2 (pCO2) and calculated pCO2 from Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) biogeochemistry floats from 1982 to 2017. The pCO2 fields were created using a 2-step neural network technique. In a first step, the global ocean is divided into 16 biogeochemical provinces using a self-organizing map. In a second step, the non-linear relationship between variables known to drive the surface ocean carbon system and gridded observations from the SOCAT dataset (Bakker et al., 2016) starting in 1982 in various combinations with calculated pCO2 from biogeochemical ARGO floats starting in 2014 from the SOCCOM project (Johnson et al., 2017) is reconstructed using a feed-forward neural network within each province separately. The final product is then produced by projecting these driving variables, i.e., surface temperature, chlorophyll, mixed layer depth, and atmospheric CO2 onto oceanic pCO2 using these non-linear relationships. This results in monthly pCO2 fields at 1°x1° resolution covering the entire globe with the exception of the Arctic Ocean and few marginal seas. The air-sea CO2 flux is then computed using a standard bulk formula.
  • Cite as: Landschützer, Peter; Bushinsky, Seth M.; Gray, Alison R. (2019). A combined globally mapped carbon dioxide (CO2) flux estimate based on the Surface Ocean CO2 Atlas Database (SOCAT) and Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) biogeochemistry floats from 1982 to 2017 (NCEI Accession 0191304). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/9hsn-xq82. Accessed [date].
gov.noaa.nodc:0191304
Full Text · XML
Download Data
  • HTTPS (download)
    Navigate directly to the URL for data access and direct download.
  • FTP (download)
    These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
Distribution Formats
  • Originator data format
Ordering Instructions Contact NCEI for other distribution options and instructions.
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 1982-01-01 to 2017-12-31
Spatial Bounding Box Coordinates
West: -180
East: 180
South: -89.5
North: 89.5
Spatial Coverage Map
General Documentation
Associated Resources
  • Landschützer, P., Gruber, N., Bakker, D. C. E., Schuster, U.: Recent variability of the global ocean carbon sink, Global Biogeochemical Cycles, 28, https://doi.org/10.1002/2014GB004853, 2014
  • Bakker, D. C. E., et al. (2014). An update to the Surface Ocean CO2 Atlas (SOCAT version 2), Earth System Science Data, 6, 69-90, https://doi.org/10.5194/essd-6-69-2014
  • Johnson, K. S., J. N. Plant, L. J. Coletti, and others. 2017. Biogeochemical sensor performance in the SOCCOM profiling float array. J. Geophys. Res. Ocean. 122: 6416-6436. https://doi.org/10.1002/2017JC012838
  • Landschützer, P., Gruber, N., Bakker, D. C. E., Schuster, U., Nakaoka, S., Payne, M. R., Sasse, T., and Zeng, J.: A neural network-based estimate of the seasonal to inter-annual variability of the Atlantic Ocean carbon sink, Biogeosciences, 10, 7793-7815, https://doi.org/10.5194/bg-10-7793-2013, 2013.
  • A combined estimate of the air-sea exchange of CO2 based on SOCAT pCO2 and calculated pCO2 from SOCCOM biogeochemistry floats.
  • 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: 2019-07-12
  • revision: 2019-07-19
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
In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.
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: Landschützer, Peter; Bushinsky, Seth M.; Gray, Alison R. (2019). A combined globally mapped carbon dioxide (CO2) flux estimate based on the Surface Ocean CO2 Atlas Database (SOCAT) and Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) biogeochemistry floats from 1982 to 2017 (NCEI Accession 0191304). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/9hsn-xq82. Accessed [date].
Cited Authors
Principal Investigators
Contributors
Resource Providers
Publishers
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords OCADS Study Type
  • Data synthesis product
  • Surface underway
Provider Variable Abbreviations
  • fgco2_raw
  • fgco2_smoothed
  • lat
  • lon
  • spco2_raw
  • spco2_smoothed
  • time
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords
Platform keywords NODC PLATFORM NAMES THESAURUS
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords Provider Geographic Names
  • World Ocean
Project keywords NODC PROJECT NAMES THESAURUS Ocean Acidification Search Keywords
  • Ocean Carbon and Acidification Data System (OCADS) Project
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Landschützer, Peter; Bushinsky, Seth M.; Gray, Alison R. (2019). A combined globally mapped carbon dioxide (CO2) flux estimate based on the Surface Ocean CO2 Atlas Database (SOCAT) and Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) biogeochemistry floats from 1982 to 2017 (NCEI Accession 0191304). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/9hsn-xq82. 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
  • 2019-07-12T18:28:01Z - NCEI Accession 0191304 v1.1 was published.
  • 2019-07-19T19:15:41Z - NCEI Accession 0191304 was revised and v2.2 was published.
    Rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ 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: latitude in degrees north (89.5°S - 89.5°N with 1° resolution); Abbreviation: lat; Controlled vocabulary name: Latitude.
  • Parameter or Variable: longitude in degrees east (179.5°W-179.5°E with 1° resolution); Abbreviation: lon; Controlled vocabulary name: Longitude.
  • Parameter or Variable: time in seconds since 2000-01-01-00:00 (monthly resolution); Abbreviation: time; Controlled vocabulary name: Time.
  • Parameter or Variable: The raw 2-step neural network sea surface pCO2 output in μatm from both SOCAT and SOCCOM; Abbreviation: spco2_raw; Unit: μatm; Controlled vocabulary name: partial pressure of carbon dioxide - water; Observation type: calculated.
  • Parameter or Variable: The air-sea flux density, calculated from the raw sea surface pCO2 in mol m-2 yr-1; Abbreviation: fgco2_raw; Unit: mol m-2 yr-1; Controlled vocabulary name: partial pressure of carbon dioxide - flux; Observation type: calculated.
  • Parameter or Variable: A smoothed product of the raw pCO2, created by the spatial and temporal mean of each points neighboring pixels (the 3x3x3 pixel neighborhood domain) in μatm; Abbreviation: spco2_smoothed; Unit: μatm; Controlled vocabulary name: partial pressure of carbon dioxide - flux; Observation type: calculated.
  • Parameter or Variable: A smoothed product of the raw air-sea CO2 flux, created by the spatial and temporal mean of each points neighboring pixels (the 3x3x3 pixel neighborhood domain) in mol m-2 yr-1; Abbreviation: fgco2_smoothed; Unit: m-2 yr-1; Controlled vocabulary name: partial pressure of carbon dioxide - flux; Observation type: calculated .
Acquisition Information (collection)
Instrument
  • carbon dioxide (CO2) gas analyzer
  • showerhead equilibrator
Platform
  • MULTIPLE SHIPS OF GERMANY
Last Modified: 2024-03-08T13:25:10Z
For questions about the information on this page, please email: ncei.info@noaa.gov