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Global Ocean Data Analysis Project version 2.2021 (GLODAPv2.2021) (NCEI Accession 0237935)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 29, 2026 | Last Modified: 2025-06-24T00:00:00.000+00:00
This dataset consists of the GLODAPv2.2021 data product composed of data from 989 scientific cruises covering the global ocean between 1972 and 2020. It includes full depth discrete bottle measurements of salinity, oxygen, nitrate, silicate, phosphate, dissolved inorganic carbon (TCO2), total alkalinity (TAlk), CO2 fugacity (fCO2), pH, chlorofluorocarbons (CFC-11, CFC-12, CFC-113, and CCl4), various isotopes and organic compounds. It was created by appending data from 43 cruises to GLODAPv2.2020 (Olsen et al., 2020, NCEI Accession 0210813). The data for salinity, oxygen, nitrate, silicate, phosphate, TCO2, TAlk, pH, CFC-11, CFC-12, CFC-113, and CCl4 were subjected to primary and secondary quality control. Severe biases in these data have been corrected for, and outliers removed. However, differences in data related to any known or likely time trends or variations have not been corrected for. These data are believed to be accurate to 0.005 in salinity, 1% in oxygen, 2% in nitrate, 2% in silicate, 2% in phosphate, 4 µmol kg-1 in TCO2, 4 µmol kg-1 in TAlk, and for the halogenated transient tracers: 5%.

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0237935 CARBON - TOTAL ORGANIC Carbon tetrachloride (CCL4) CHLOROFLUOROCARBON-11 (CFC-11) CHLOROFLUOROCARBON-113 (CFC-113) CHLOROFLUOROCARBON-12 (CFC-12) CHLOROPHYLL A DELTA CARBON-13 DELTA CARBON-14 DISSOLVED INORGANIC CARBON (DIC) HELIUM NEON NITRATE NITRITE NITROGEN - ORGANIC OXYGEN OXYGEN - APPARENT UTILIZATION (AOU) OXYGEN ISOTOPES - OXYGEN-18 partial pressure of carbon dioxide - water pH phosphate Potential temperature (theta) SALINITY silicate sulfur hexafluoride (SF6) total alkalinity WATER TEMPERATURE carbon dioxide (CO2) gas analyzer CTD Niskin bottle nutrient autoanalyzer oxygen sensor salinometer temperature sensor titrator chemical discrete sample physical profile VARIOUS CHARTERED VESSELS Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research Bjerknes Centre for Climate Research Commonwealth Scientific and Industrial Research Organization Federal University of Rio de Janeiro, Applied Meteorology Laboratory GEOMAR Helmholtz Centre for Ocean Research Kiel Instituto de Investigacións Mariñas de Vigo Japan Hydrographic Association, Marine Information Research Center Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques Leibniz Institute for Baltic Sea Research Warnemünde Massachusetts Institute of Technology Meteorological Research Institute Japan National Oceanography Centre NOAA Atlantic Oceanographic and Meteorological Laboratory NOAA Pacific Marine Environmental Laboratory Princeton University Scripps Institution of Oceanography Spanish Institute of Oceanography Swedish Meteorological and Hydrological Institute University of Bergen University of Bremen University of Groningen Woods Hole Oceanographic Institution GEOMAR Helmholtz Centre for Ocean Research Kiel GLOBAL OCEAN DATA ANALYSIS PROJECT (GLODAP) JOINT GLOBAL OCEAN FLUX STUDY (JGOFS) The Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP) U.S. Climate Variability and Predictability Research Program (U.S. CLIVAR) US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP) World Ocean Circulation Experiment (WOCE) Arctic Ocean Gulf of Mexico Indian Ocean Mediterranean Sea North Atlantic Ocean North Pacific Ocean Red Sea South Atlantic Ocean South Pacific Ocean Southern Ocean oceanography AWI > Alfred Wegener Institute for Polar and Marine Research BJERKNES > Bjerknes Centre for Climate Research DE/GEOMAR > GEOMAR - Helmholtz Centre for Ocean Research Kiel, Germany 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 IEO > Instituto Espanol de Oceanografia IOW > Leibniz Institute Baltic Sea Research Institute, Warnemuende, Germany JP/JMA/MRI > Meteorological Research Institute, Japan Meteorological Agency, Japan U-SOTON/NOC > National Oceanography Centre, University of Southampton WHOI > WOODS HOLE OCEANOGRAPHIC INSTITUTION CLIVAR > Climate Variability GLODAP > Global Ocean Data Analysis Project JGOFS > Joint Global Ocean Flux Study, IGBP WOCE > World Ocean Circulation Experiment Ocean Carbon and Acidification Data System (OCADS) Project CLIVAR GO-SHIP Other Repeat Sections and research cruises WOCE CARbon dioxide IN the Atlantic Ocean (CARINA) Carbon dioxide in the Pacific Ocean (PACIFICA) GLOBAL OCEAN DATA ANALYSIS PROJECT (GLODAP) GLODAPv2 GLODAPv2.2020 New Repeat Sections EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > DISSOLVED GASES EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > POTENTIAL TEMPERATURE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY Data synthesis product Discrete measurement CLIVAR Repeat Sections GLODAP GLODAPv2.2021 GO-SHIP Repeat Sections WOCE He aou c13 c14 c14err ccl4 cfc11 cfc113 cfc12 chla doc don fco2 gamma h3 h3err he3err heerr neon neonerr nitrate nitrite o18 oxygen pccl4 pcfc11 pcfc12 phosphate phts25p0 phtsinsitutp psf6 salinity sf6 sigma0 sigma1 sigma2 sigma3 sigma4 silicate talk tco2 tdn temperature theta toc δ3He AUTOANALYZER > AUTOANALYZER CO2 ANALYZERS > CO2 ANALYZERS CTD > Conductivity, Temperature, Depth NISKIN BOTTLES OXYGEN METERS > OXYGEN METERS SALINOMETERS TEMPERATURE SENSORS > TEMPERATURE SENSORS OCEAN > ARCTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > MEDITERRANEAN SEA OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN OCEAN > INDIAN OCEAN OCEAN > INDIAN OCEAN > RED SEA OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN OCEAN > SOUTHERN OCEAN Arctic Ocean Atlantic Ocean Indian Ocean Pacific Ocean

Complete Metadata
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identifier gov.noaa.nodc:0237935
issued 2021-06-29T00:00:00.000+00:00
keyword 
                                            [
  "0237935",
  "CARBON - TOTAL ORGANIC",
  "Carbon tetrachloride (CCL4)",
  "CHLOROFLUOROCARBON-11 (CFC-11)",
  "CHLOROFLUOROCARBON-113 (CFC-113)",
  "CHLOROFLUOROCARBON-12 (CFC-12)",
  "CHLOROPHYLL A",
  "DELTA CARBON-13",
  "DELTA CARBON-14",
  "DISSOLVED INORGANIC CARBON (DIC)",
  "HELIUM",
  "NEON",
  "NITRATE",
  "NITRITE",
  "NITROGEN - ORGANIC",
  "OXYGEN",
  "OXYGEN - APPARENT UTILIZATION (AOU)",
  "OXYGEN ISOTOPES - OXYGEN-18",
  "partial pressure of carbon dioxide - water",
  "pH",
  "phosphate",
  "Potential temperature (theta)",
  "SALINITY",
  "silicate",
  "sulfur hexafluoride (SF6)",
  "total alkalinity",
  "WATER TEMPERATURE",
  "carbon dioxide (CO2) gas analyzer",
  "CTD",
  "Niskin bottle",
  "nutrient autoanalyzer",
  "oxygen sensor",
  "salinometer",
  "temperature sensor",
  "titrator",
  "chemical",
  "discrete sample",
  "physical",
  "profile",
  "VARIOUS CHARTERED VESSELS",
  "Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research",
  "Bjerknes Centre for Climate Research",
  "Commonwealth Scientific and Industrial Research Organization",
  "Federal University of Rio de Janeiro, Applied Meteorology Laboratory",
  "GEOMAR Helmholtz Centre for Ocean Research Kiel",
  "Instituto de Investigacións Mariñas de Vigo",
  "Japan Hydrographic Association, Marine Information Research Center",
  "Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques",
  "Leibniz Institute for Baltic Sea Research Warnemünde",
  "Massachusetts Institute of Technology",
  "Meteorological Research Institute Japan",
  "National Oceanography Centre",
  "NOAA Atlantic Oceanographic and Meteorological Laboratory",
  "NOAA Pacific Marine Environmental Laboratory",
  "Princeton University",
  "Scripps Institution of Oceanography",
  "Spanish Institute of Oceanography",
  "Swedish Meteorological and Hydrological Institute",
  "University of Bergen",
  "University of Bremen",
  "University of Groningen",
  "Woods Hole Oceanographic Institution",
  "GEOMAR Helmholtz Centre for Ocean Research Kiel",
  "GLOBAL OCEAN DATA ANALYSIS PROJECT (GLODAP)",
  "JOINT GLOBAL OCEAN FLUX STUDY (JGOFS)",
  "The Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP)",
  "U.S. Climate Variability and Predictability Research Program (U.S. CLIVAR)",
  "US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP)",
  "World Ocean Circulation Experiment (WOCE)",
  "Arctic Ocean",
  "Gulf of Mexico",
  "Indian Ocean",
  "Mediterranean Sea",
  "North Atlantic Ocean",
  "North Pacific Ocean",
  "Red Sea",
  "South Atlantic Ocean",
  "South Pacific Ocean",
  "Southern Ocean",
  "oceanography",
  "AWI > Alfred Wegener Institute for Polar and Marine Research",
  "BJERKNES > Bjerknes Centre for Climate Research",
  "DE/GEOMAR > GEOMAR - Helmholtz Centre for Ocean Research Kiel, Germany",
  "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",
  "IEO > Instituto Espanol de Oceanografia",
  "IOW > Leibniz Institute Baltic Sea Research Institute, Warnemuende, Germany",
  "JP/JMA/MRI > Meteorological Research Institute, Japan Meteorological Agency, Japan",
  "U-SOTON/NOC > National Oceanography Centre, University of Southampton",
  "WHOI > WOODS HOLE OCEANOGRAPHIC INSTITUTION",
  "CLIVAR > Climate Variability",
  "GLODAP > Global Ocean Data Analysis Project",
  "JGOFS > Joint Global Ocean Flux Study, IGBP",
  "WOCE > World Ocean Circulation Experiment",
  "Ocean Carbon and Acidification Data System (OCADS) Project",
  "CLIVAR",
  "GO-SHIP",
  "Other Repeat Sections and research cruises",
  "WOCE",
  "CARbon dioxide IN the Atlantic Ocean (CARINA)",
  "Carbon dioxide in the Pacific Ocean (PACIFICA)",
  "GLOBAL OCEAN DATA ANALYSIS PROJECT (GLODAP)",
  "GLODAPv2",
  "GLODAPv2.2020",
  "New Repeat Sections",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > DISSOLVED GASES",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE",
  "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > POTENTIAL TEMPERATURE",
  "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE",
  "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY",
  "Data synthesis product",
  "Discrete measurement",
  "CLIVAR Repeat Sections",
  "GLODAP",
  "GLODAPv2.2021",
  "GO-SHIP Repeat Sections",
  "WOCE",
  "He",
  "aou",
  "c13",
  "c14",
  "c14err",
  "ccl4",
  "cfc11",
  "cfc113",
  "cfc12",
  "chla",
  "doc",
  "don",
  "fco2",
  "gamma",
  "h3",
  "h3err",
  "he3err",
  "heerr",
  "neon",
  "neonerr",
  "nitrate",
  "nitrite",
  "o18",
  "oxygen",
  "pccl4",
  "pcfc11",
  "pcfc12",
  "phosphate",
  "phts25p0",
  "phtsinsitutp",
  "psf6",
  "salinity",
  "sf6",
  "sigma0",
  "sigma1",
  "sigma2",
  "sigma3",
  "sigma4",
  "silicate",
  "talk",
  "tco2",
  "tdn",
  "temperature",
  "theta",
  "toc",
  "δ3He",
  "AUTOANALYZER > AUTOANALYZER",
  "CO2 ANALYZERS > CO2 ANALYZERS",
  "CTD > Conductivity, Temperature, Depth",
  "NISKIN BOTTLES",
  "OXYGEN METERS > OXYGEN METERS",
  "SALINOMETERS",
  "TEMPERATURE SENSORS > TEMPERATURE SENSORS",
  "OCEAN > ARCTIC OCEAN",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > MEDITERRANEAN SEA",
  "OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN",
  "OCEAN > INDIAN OCEAN",
  "OCEAN > INDIAN OCEAN > RED SEA",
  "OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN",
  "OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN",
  "OCEAN > SOUTHERN OCEAN",
  "Arctic Ocean",
  "Atlantic Ocean",
  "Indian Ocean",
  "Pacific Ocean"
]
landingPage https://www.ncei.noaa.gov/contact
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2025-06-24T00:00:00.000+00:00
publisher 
                                            {
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
                                            [
  "https://doi.org/10.5194/essd-13-5565-2021",
  "https://doi.org/10.5194/essd-12-3653-2020",
  "https://doi.org/10.5194/essd-8-297-2016",
  "https://doi.org/10.5194/essd-2019-66",
  "https://doi.org/10.5194/essd-8-325-2016",
  "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/GLODAPv2_2021/",
  "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system",
  "https://www.glodap.info/"
]
rights otherRestrictions
spatial 180.0,-90.0,-180.0,90.0
temporal 1972-01-01T00:00:00+00:00/2020-02-10T00:00:00+00:00
title Global Ocean Data Analysis Project version 2.2021 (GLODAPv2.2021) (NCEI Accession 0237935)

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