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Global surface ocean acidification indicators from 1750 to 2100 (NCEI Accession 0259391)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 03, 2026 at 04:12 AM | Dataset Last Updated: April 25, 2025 at 12:00 AM
This data package contains a hybrid surface OA data product that is produced based on three recent observational data products: (a) the Surface Ocean CO2 Atlas (SOCAT, version 2022), (b) the Global Ocean Data Analysis Product version 2 (GLODAPv2, version 2022), and (c) the Coastal Ocean Data Analysis Product in North America (CODAP-NA, version 2021), and 14 Earth System Models from the sixth phase of the Coupled Model Intercomparison Project (CMIP6). The trajectories of ten OA indicators, including fugacity of carbon dioxide, pH on Total Scale, total hydrogen ion content, free hydrogen ion content, carbonate ion content, aragonite saturation state, calcite saturation state, Revelle Factor, total dissolved inorganic carbon content, and total alkalinity content are provided under preindustrial conditions, historical conditions, and future Shared Socioeconomic Pathways: SSP1-19, SSP1-26, SSP2-45, SSP3-70, and SSP5-85 from 1750 to 2100 on a global surface ocean grid. These OA trajectories are improved relative to previous OA data products with respect to data quantity, spatial and temporal coverage, diversity of the underlying data and model simulations, and the provided SSPs over the 21st century. The median and standard deviation values stored as Excel files in the "Median_Std_surface" folder were area-averaged values under the IPCC business-as-usual Scenario, i.e., SSP5-8.5.

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  • Project Metadata

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  • NCEI Dataset Landing Page

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  • Descriptive Information

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  • https://doi.org/10.1029/2022ms003563

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  • https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0287551.html

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  • https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system

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  • GCMD Keyword Forum Page

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0259391 ARAGONITE SATURATION STATE CALCITE CONCENTRATION CARBON - CARBONATE DISSOLVED INORGANIC CARBON (DIC) partial pressure of carbon dioxide - water pH SALINITY

Complete Metadata
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describedByType application/octet-steam
description This data package contains a hybrid surface OA data product that is produced based on three recent observational data products: (a) the Surface Ocean CO2 Atlas (SOCAT, version 2022), (b) the Global Ocean Data Analysis Product version 2 (GLODAPv2, version 2022), and (c) the Coastal Ocean Data Analysis Product in North America (CODAP-NA, version 2021), and 14 Earth System Models from the sixth phase of the Coupled Model Intercomparison Project (CMIP6). The trajectories of ten OA indicators, including fugacity of carbon dioxide, pH on Total Scale, total hydrogen ion content, free hydrogen ion content, carbonate ion content, aragonite saturation state, calcite saturation state, Revelle Factor, total dissolved inorganic carbon content, and total alkalinity content are provided under preindustrial conditions, historical conditions, and future Shared Socioeconomic Pathways: SSP1-19, SSP1-26, SSP2-45, SSP3-70, and SSP5-85 from 1750 to 2100 on a global surface ocean grid. These OA trajectories are improved relative to previous OA data products with respect to data quantity, spatial and temporal coverage, diversity of the underlying data and model simulations, and the provided SSPs over the 21st century. The median and standard deviation values stored as Excel files in the "Median_Std_surface" folder were area-averaged values under the IPCC business-as-usual Scenario, i.e., SSP5-8.5.
distribution 
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/0259391.xml
issued 2020-01-08T00:00:00.000+00:00
keyword 
[
  "0259391",
  "ARAGONITE SATURATION STATE",
  "CALCITE CONCENTRATION",
  "CARBON - CARBONATE",
  "DISSOLVED INORGANIC CARBON (DIC)",
  "partial pressure of carbon dioxide - water",
  "pH",
  "SALINITY",
  "SEA SURFACE TEMPERATURE",
  "total alkalinity",
  "carbon dioxide (CO2) gas analyzer",
  "chemical",
  "model output",
  "physical",
  "VARIOUS CHARTERED VESSELS",
  "Bjerknes Centre for Climate Research",
  "GEOMAR Helmholtz Centre for Ocean Research Kiel",
  "Max Planck Institute for Meteorology - Hamburg",
  "National Oceanography Centre",
  "NOAA Atlantic Oceanographic and Meteorological Laboratory",
  "NOAA National Centers for Environmental Information",
  "NOAA Pacific Marine Environmental Laboratory",
  "University of East Anglia",
  "University of Maryland, College Park",
  "University of Victoria",
  "University of Washington Cooperative Institute for Climate, Ocean and Ecosystem Studies",
  "University of Maryland, College Park",
  "Ocean Carbon and Acidification Data System (OCADS)",
  "US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP)",
  "World-Wide Distribution",
  "oceanography",
  "BJERKNES > Bjerknes Centre for Climate Research",
  "DE/GEOMAR > GEOMAR - Helmholtz Centre for Ocean Research Kiel, Germany",
  "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
  "DOC/NOAA/OAR/AOML > Atlantic Oceanographic and Meteorological Laboratory, OAR, NOAA, U.S. Department of Commerce",
  "DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce",
  "MPI-M > Max Planck Institute for Meteorology",
  "U-SOTON/NOC > National Oceanography Centre, University of Southampton",
  "Ocean Acidification Program (OAP)",
  "Ocean Carbon and Acidification Data System (OCADS) Project",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBONATE",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH",
  "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE",
  "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY",
  "Model output",
  "Aragonite",
  "CO3",
  "Calcite",
  "DIC",
  "H",
  "Hfree",
  "RF",
  "Salinity",
  "TA",
  "Temperature",
  "fCO2",
  "pCO2a",
  "pHT",
  "CO2 ANALYZERS > CO2 ANALYZERS",
  "GEOGRAPHIC REGION > GLOBAL OCEAN",
  "Global ocean"
]
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2025-04-25T00:00:00.000+00:00
publisher 
{
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
rights otherRestrictions, PUBLIC
spatial -86.47279,33.04874,-87.07297,33.80908
theme 
[
  "geospatial"
]
title Global surface ocean acidification indicators from 1750 to 2100 (NCEI Accession 0259391)

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