PAR-GWR-CARB: A monthly gridded surface carbonate system data product for the Pacific-Arctic Region from 1982-2021 (NCEI Accession 0292960)

Description

The Pacific-Arctic Region (PAR) is highly sensitive to ocean acidification, yet data gaps in the carbonate system record persist due to the region's remote nature and environmental factors such as sea ice. To address these gaps, we utilized a geographically-weighted regression (GWR) to predict surface total alkalinity using salinity and temperature data at a monthly 1°x1° resolution. The GWR methodology, which allows regression coefficients to vary spatially, accounts for local factors such as riverine discharge, sea ice melt, primary productivity, and other influences on alkalinity. This approach achieved a high degree of accuracy, with an R² of 0.93, a mean absolute error (MAE) of 23 μmol/kg, and near-zero bias (mean bias error [MBE] of -0.01 μmol/kg), as validated by 10-fold cross-validation (N = 7,146). The derived regression coefficients were then applied to the Hadley EN4 salinity and OI SST temperature datasets to estimate total alkalinity. Subsequently, this total alkalinity dataset was integrated with the MPI-SOM-FFN surface pCO2 dataset to reconstruct the entire carbonate system (DIC, pH, [H⁺], Ω) from 1982 to 2021 at a monthly 1°x1° resolution.

Resources

Name Format Description Link
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
21 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0292960.html
0 Navigate directly to the URL for a descriptive web page with download links. https://doi.org/10.25921/p35d-d778
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/292960
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/292960
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/arc0227/0292960/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page http://ww2.uri.edu/
0 Institution web page http://ww2.uri.edu/
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 OCADS website https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
0 related resource https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/
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
21 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0292960.html
0 Navigate directly to the URL for a descriptive web page with download links. https://doi.org/10.25921/p35d-d778
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/292960
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/292960
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/arc0227/0292960/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page http://ww2.uri.edu/
0 Institution web page http://ww2.uri.edu/
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 OCADS website https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
0 related resource https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/
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
21 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0292960.html
0 Navigate directly to the URL for a descriptive web page with download links. https://doi.org/10.25921/p35d-d778
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/292960
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/292960
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/arc0227/0292960/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page http://ww2.uri.edu/
0 Institution web page http://ww2.uri.edu/
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 OCADS website https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
0 related resource https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/
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 Navigate directly to the URL for a descriptive web page with download links. https://doi.org/10.25921/p35d-d778
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page http://ww2.uri.edu/
0 Institution web page http://ww2.uri.edu/
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 OCADS website https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
0 related resource https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/
21 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0292960.html
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/292960
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/292960
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/arc0227/0292960/
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 Navigate directly to the URL for a descriptive web page with download links. https://doi.org/10.25921/p35d-d778
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/292960
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/292960
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page http://ww2.uri.edu/
0 Institution web page http://ww2.uri.edu/
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 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 OCADS website https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
0 related resource https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/
21 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0292960.html
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/arc0227/0292960/
21 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0292960.html
0 Navigate directly to the URL for a descriptive web page with download links. https://doi.org/10.25921/p35d-d778
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/292960
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/292960
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/arc0227/0292960/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page http://ww2.uri.edu/
0 Institution web page http://ww2.uri.edu/
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 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 OCADS website https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
0 related resource https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/
21 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0292960.html
0 Navigate directly to the URL for a descriptive web page with download links. https://doi.org/10.25921/p35d-d778
0 Navigate directly to the URL for a descriptive web page with download links. https://www.ncei.noaa.gov/archive/accession/oas/292960
0 Navigate directly to the URL for data access and direct download. https://www.ncei.noaa.gov/archive/accession/download/292960
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 Institution web page http://ww2.uri.edu/
0 Institution web page http://ww2.uri.edu/
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 OCADS website https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
0 related resource https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/
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/arc0227/0292960/
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

Tags

  • latitude
  • pco2
  • sil
  • omega_ar
  • u_ph
  • longitude
  • ta_gwr_b
  • ta
  • u_ta
  • sss
  • oceanography
  • subarctic pacific
  • subregions
  • phos
  • ta_gwr_c
  • u_pco2
  • gulf of alaska
  • sst
  • arctic ocean
  • u_omega_ar
  • canadian archipelago
  • ta_gwr_a
  • u_sss
  • h
  • u_dic
  • beaufort sea
  • u_h
  • time
  • bering sea
  • east siberian sea
  • chukchi sea
  • dic
  • ph
  • ocean carbon and acidification data system (ocads) project
  • model output

Topics

Categories