Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Try the next-generation Data Catalog at catalog-beta.data.gov and help shape it with your feedback.

Surface Ocean CO2 Atlas (SOCAT) version 4, 1968-11-16 to 2014-12-31 (NCEI Accession 0161129)

Metadata Updated: February 1, 2026

This dataset is Surface Ocean CO2 Atlas (SOCAT) version 4. This dataset includes surface underway, chemical, meteorological, navigational and physical data collected from unknown platforms in the world-wide oceans from 1968-11-16 to 2014-12-31. These data include BAROMETRIC PRESSURE, LATITUDE, LONGITUDE, Partial pressure (or fugacity) of carbon dioxide - water, SALINITY and SEA SURFACE TEMPERATURE.

The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the International Ocean Carbon Coordination Project (IOCCP), the Surface Ocean Lower Atmosphere Study (SOLAS) and the Integrated Marine Biogeochemistry and Ecosystem Research program (IMBER), to deliver a uniformly quality-controlled surface ocean CO2 database.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date 2026-01-12T22:13:47Z
Metadata Created Date March 19, 2021
Metadata Updated Date February 1, 2026
Reference Date(s) February 24, 2017 (publication), June 25, 2025 (revision), February 24, 2017 (creation)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA/NESDIS/ncei/accessions

Graphic Preview

Preview graphic

Additional Metadata

Resource Type Dataset
Metadata Date 2026-01-12T22:13:47Z
Metadata Created Date March 19, 2021
Metadata Updated Date February 1, 2026
Reference Date(s) February 24, 2017 (publication), June 25, 2025 (revision), February 24, 2017 (creation)
Responsible Party (Point of Contact)
Contact Email
Guid gov.noaa.nodc:0161129
Access Constraints Cite as: Bakker, Dorothee C. E.; Pfeil, Benjamin; Smith, Karl; Harasawa, Sumiko; Landa, Camilla S.; Nakaoka, Shin-ichiro; Nojiri, Yukihiro; Metzl, Nicolas; O'Brien, Kevin M.; Olsen, Are; Schuster, Ute; Tilbrook, Bronte; Wanninkhof, Rik; Alin, Simone R.; Barbero, Leticia; Bates, Nicholas; Bianchi, Alejandro A.; Bonou, Frédéric; Boutin, Jacqueline; Bozec, Yann; Burger, Eugene F.; Castle, Robert D.; Chen, Liqi; Chierici, Melissa; Cosca, Catherine E.; Currie, Kim I.; Evans, Wiley; Featherstone, Charles; Feely, Richard A.; Fransson, Agneta; Greenwood, Naomi; Gregor, Luke; Hankin, Steve; Hardman-Mountford, Nick; Harlay, Jérôme; Hauck, Judith; Hoppema, Mario; Humphreys, Matthew P.; Hunt, Christopher W.; Johannessen, Truls; Jones, Steve D.; Keeling, Ralph F.; Kitidis, Vassilis; Kozyr, Alex; Krasakopoulou, Evangelia; Kuwata, Akira; Lauvset, Siv K.; Lo Monaco, Claire; Manke, Ansley B.; Mathis, Jeremy T.; Merlivat, Liliane; Monteiro, Pedro M. S.; Munro, David R.; Murata, Akihiko; Newberger, Tim; Omar, Abdirahman M.; Ono, Tsuneo; Paterson, Kristina; Pierrot, Denis; Robbins, Lisa L.; Sabine, Christopher L.; Saito, Shu; Salisbury, Joseph E.; Schneider, Bernd; Schlitzer, Reiner; Sieger, Rainer; Skjelvan, Ingunn; Steinhoff, Tobias; Sullivan, Kevin F.; Sutherland, Stewart C.; Sutton, Adrienne J.; Sweeney, Colm; Tadokoro, Kazuaki; Takahashi, Taro; Telszewski, Maciej; van Heuven, Steven M. A. C.; Vandemark, Douglas; Wada, Chisato; Ward, Brian; Watson, Andrew J. (2017). Surface Ocean CO2 Atlas (SOCAT) version 4, 1968-11-16 to 2014-12-31 (NCEI Accession 0161129). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.socat_v4_grid. 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 -179.9
Bbox North Lat 89.9
Bbox South Lat -89.9
Bbox West Long -179.6
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Preview graphic
Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0161129
Graphic Preview Type PNG
Harvest Object Id c6f76ad0-b85f-4c10-a5b7-84788fa2a299
Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
Harvest Source Title NOAA/NESDIS/ncei/accessions
Licence accessLevel: Public
Lineage
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-179.6, -89.9], [-179.9, -89.9], [-179.9, 89.9], [-179.6, 89.9], [-179.6, -89.9]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1968-11-16
Temporal Extent End 2014-12-31

Didn't find what you're looking for? Suggest a dataset here.