OceanSODA-ETHZ: A global gridded dataset of the surface ocean carbonate system for seasonal to decadal studies of ocean acidification (v2023) (NCEI Accession 0220059)

Description

This dataset contains a global gridded dataset of the surface ocean carbonate system for seasonal to decadal studies of ocean acidification (v2023). The full marine carbonate system is calculated from machine learning estimates of Total Alkalinity (TA) and the fugacity of carbon dioxide (fCO2). The surface-ocean fCO2 presented here is the ensemble mean of 16 two-step clustering-regression machine learning estimates. The ensemble is a combination of eight clustering instances and two regression methods. For the clustering, we use K-means clustering (21 clusters) repeated with different initiations, resulting in slightly different clusters. Two machine learning regression methods are applied to each of these clustering instances. These machine learning methods are feed-forward neural-network (FFNN), and gradient boosted machine using decision trees (GBDT). The average of the ensemble members is used as the final estimate. Further, the standard deviation of the ensemble members is an analog of the uncertainty. The same two-step clustering-regression approach is used to estimate TA. The final estimate is the mean of 16 ensemble members. Eight of the ensemble members estimate standard TA while the other half estimate salinity normalized TA (S0 ≈ 34.0). Each ensemble member has 12 clusters. Support vector regression (SVR) is used as the regression method. Again, the standard deviation of the ensemble members is an analog of the uncertainty. Total alkalinity and pCO2 are then used to solve for the remaining parameters of the marine carbonate system using the PyCO2SYS software. The temperature and salinity products used in this calculation are provided in the file. Phosphate and silicate from the interpolated World Ocean Atlas (2018) product were used. We use the following total scale for pH. The product extends from the start of 1982 to the end of 2022.

Resources

Name Format Description Link
0 Institution web page http://www.ethz.ch
0 Navigate directly to the URL for a descriptive web page. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
0 journal article https://doi.org/10.5194/essd-13-777-2021
21 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0220059.html
0 Navigate directly to the URL for a descriptive web page with download links. https://doi.org/10.25921/m5wx-ja34
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/220059
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/220059
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ethz.ch
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ibp.ethz.ch/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 NOAA Central Library: Journal Article https://doi.org/10.1029/2021gl096938
0 Institution web page https://library.noaa.gov/
0 Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 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). ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0160/0220059/
0 Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 Institution web page http://www.ethz.ch
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ethz.ch
0 Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 Institution web page https://library.noaa.gov/
21 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0220059.html
0 Navigate directly to the URL for a descriptive web page with download links. https://doi.org/10.25921/m5wx-ja34
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/220059
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/220059
0 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). ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0160/0220059/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ethz.ch
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ethz.ch
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 journal article https://doi.org/10.5194/essd-13-777-2021
0 Institution web page http://www.ethz.ch
0 NOAA Central Library: Journal Article https://doi.org/10.1029/2021gl096938
21 related resource https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/ndp_103/ndp103.html
0 OCADS website https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
21 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0220059.html
0 Navigate directly to the URL for a descriptive web page with download links. https://doi.org/10.25921/m5wx-ja34
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/220059
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/220059
0 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). ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0160/0220059/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ethz.ch
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ethz.ch
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 journal article https://doi.org/10.5194/essd-13-777-2021
0 Institution web page http://www.ethz.ch
0 NOAA Central Library: Journal Article https://doi.org/10.1029/2021gl096938
0 Institution web page https://library.noaa.gov/
21 related resource https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/ndp_103/ndp103.html
0 OCADS website https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
0 Institution web page http://www.ibp.ethz.ch/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page http://www.ibp.ethz.ch/
21 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0220059.html
0 Navigate directly to the URL for a descriptive web page with download links. https://doi.org/10.25921/m5wx-ja34
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/220059
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/220059
0 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). ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0160/0220059/
0 Institution web page http://www.ethz.ch
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ibp.ethz.ch/
0 Institution web page http://www.ethz.ch
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 journal article https://doi.org/10.5194/essd-13-777-2021
0 Institution web page http://www.ethz.ch
0 NOAA Central Library: Journal Article https://doi.org/10.1029/2021gl096938
0 Institution web page https://library.noaa.gov/
21 related resource https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/ndp_103/ndp103.html
0 OCADS website https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system

Tags

  • salinity
  • hco3
  • pco2
  • pco2std
  • southern ocean
  • lon (360)
  • various
  • lat (180)
  • oceanography
  • atlantic ocean
  • omegaca
  • arctic ocean
  • indian ocean
  • omegaar
  • tastd
  • temperature
  • data synthesis product
  • talk
  • time
  • pacific ocean
  • dic
  • ph
  • ocean carbon and acidification data system (ocads) project

Topics

Categories