Dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, discrete pCO2, chlorofluorocarbons (CFC11, CFC12), dissolved organic carbon (DOC), water temperature, salinity, dissolved oxygen, nutrients and other hydrographic and chemical variables collected from discrete samples and profile observations during the R/V Thomas G. Thompson cruise on GO-SHIP repeat section A20 (EXPOCODE 325020210316) in the North Atlantic Ocean from 2021-03-16 to 2021-04-16 (NCEI Accession 0258957)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 26, 2026 | Last Modified: 2023-08-16T00:00:00.000+00:00

This dataset includes discrete profile measurements of Dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, discrete pCO2, chlorofluorocarbons (CFC11, CFC12), dissolved organic carbon (DOC), water temperature, salinity, dissolved oxygen, nutrients and other hydrographic and chemical variables collected from discrete samples and profile observations during the R/V Thomas G. Thompson cruise on GO-SHIP repeat section A20 (EXPOCODE 325020210316) in the North Atlantic Ocean from 2021-03-16 to 2021-04-16. GO-SHIP repeat transoceanic surveys (www.goship.org) provide full water column hydrographic observations with temporal and spatial resolutions adequate to resolve decadal variability in oceanic storage of heat, freshwater, carbon, oxygen, nutrients and transient tracers. Repeat hydrographic physical-biogeochemical measurements nominally along 52° 20’N in the North Atlantic Ocean enables scientists to better tackle important unresolved aspects of the Atlantic Ocean’s response to decadal scale variability and increases in both heat and carbon dioxide as a result of anthropogenic activities. The U.S. GO-SHIP A20 2021 hydrographic section revisited this line for the fourth time, with prior transects occurring in 1997, 2003, and 2012.

Find Related Datasets

Click any tag below to search for similar datasets

Complete Metadata

@type	dcat:Dataset
accessLevel	non-public
contactPoint	{ "fn": "NOAA National Centers for Environmental Information", "@type": "vcard:Contact", "hasEmail": "mailto:ncei.info@noaa.gov" }
describedByType	application/octet-steam
description	This dataset includes discrete profile measurements of Dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, discrete pCO2, chlorofluorocarbons (CFC11, CFC12), dissolved organic carbon (DOC), water temperature, salinity, dissolved oxygen, nutrients and other hydrographic and chemical variables collected from discrete samples and profile observations during the R/V Thomas G. Thompson cruise on GO-SHIP repeat section A20 (EXPOCODE 325020210316) in the North Atlantic Ocean from 2021-03-16 to 2021-04-16. GO-SHIP repeat transoceanic surveys (www.goship.org) provide full water column hydrographic observations with temporal and spatial resolutions adequate to resolve decadal variability in oceanic storage of heat, freshwater, carbon, oxygen, nutrients and transient tracers. Repeat hydrographic physical-biogeochemical measurements nominally along 52° 20’N in the North Atlantic Ocean enables scientists to better tackle important unresolved aspects of the Atlantic Ocean’s response to decadal scale variability and increases in both heat and carbon dioxide as a result of anthropogenic activities. The U.S. GO-SHIP A20 2021 hydrographic section revisited this line for the fourth time, with prior transects occurring in 1997, 2003, and 2012.
distribution	[ { "@type": "dcat:Distribution", "title": "Project Metadata", "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0258957.html", "description": "Navigate directly to the URL for a descriptive web page with download links.", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "NCEI Dataset Landing Page", "mediaType": "placeholder/value", "description": "Navigate directly to the URL for a descriptive web page with download links.", "downloadURL": "https://doi.org/10.25921/c8rj-ek12", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "Descriptive Information", "mediaType": "placeholder/value", "description": "Navigate directly to the URL for a descriptive web page with download links.", "downloadURL": "https://www.ncei.noaa.gov/archive/accession/oas/258957", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "HTTPS", "mediaType": "placeholder/value", "description": "Navigate directly to the URL for data access and direct download.", "downloadURL": "https://www.ncei.noaa.gov/archive/accession/download/258957", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "FTP", "mediaType": "placeholder/value", "description": "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).", "downloadURL": "ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0206/0258957/", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0248063.html", "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0248063.html", "description": "Related data", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/clivar_a20_a22.html", "accessURL": "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/clivar_a20_a22.html", "description": "related resource", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system", "mediaType": "placeholder/value", "description": "OCADS website", "downloadURL": "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "GCMD Keyword Forum Page", "mediaType": "placeholder/value", "description": "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", "downloadURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "NCEI Contact Information", "mediaType": "placeholder/value", "description": "Information for contacts at NCEI.", "downloadURL": "https://www.ncei.noaa.gov/contact", "describedByType": "application/octet-steam" } ]
identifier	gov.noaa.nodc:0258957
issued	2022-08-17T00:00:00.000+00:00
keyword	[ "0258957", "CHLOROFLUOROCARBON-11 (CFC-11)", "CHLOROFLUOROCARBON-12 (CFC-12)", "DISSOLVED INORGANIC CARBON (DIC)", "DISSOLVED ORGANIC CARBON", "DISSOLVED OXYGEN", "NITRATE", "NITRITE", "partial pressure of carbon dioxide - water", "pH", "phosphate", "SALINITY", "silicate", "sulfur hexafluoride (SF6)", "total alkalinity", "WATER TEMPERATURE", "carbon dioxide (CO2) gas analyzer", "CTD", "Niskin bottle", "nutrient autoanalyzer", "oxygen sensor", "temperature sensor", "thermosalinograph", "titrator", "chemical", "discrete sample", "physical", "profile", "R/V THOMAS G. THOMPSON", "Massachusetts Institute of Technology", "NOAA Atlantic Oceanographic and Meteorological Laboratory", "NOAA Pacific Marine Environmental Laboratory", "Scripps Institution of Oceanography", "University of Miami Rosenstiel School of Marine and Atmospheric Science", "University of Washington", "Woods Hole Oceanographic Institution", "Scripps Institution of Oceanography", "The Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP)", "North Atlantic Ocean", "oceanography", "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", "U-MIAMI/RSMAS > Rosenstiel School of Marine and Atmospheric Science, University of Miami", "WHOI > WOODS HOLE OCEANOGRAPHIC INSTITUTION", "TN389", "325020210316", "Ocean Carbon and Acidification Data System (OCADS) Project", "GO-SHIP A20", "The Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP)", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE", "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 > WATER TEMPERATURE", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY", "Discrete measurement", "Profile", "ALKALI", "CFC11, CFC12", "CTDSAL", "CTDTMP", "DOC", "FCO2", "OXYGEN", "PH_TOT", "SILCAT, NITRAT, NITRIT, PHSPHT", "TCARBN", "AUTOANALYZER > AUTOANALYZER", "CO2 ANALYZERS > CO2 ANALYZERS", "CTD > Conductivity, Temperature, Depth", "NISKIN BOTTLES", "OXYGEN METERS > OXYGEN METERS", "TEMPERATURE SENSORS > TEMPERATURE SENSORS", "THERMOSALINOGRAPHS", "THOMAS G. THOMPSON (call sign: KTDQ, ICES code: 3250, 1991-)", "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN", "North Atlantic Ocean" ]
landingPage	https://www.ncei.noaa.gov/contact
language	[]
license	https://creativecommons.org/publicdomain/zero/1.0/
modified	2023-08-16T00:00:00.000+00:00
publisher	{ "name": "NOAA National Centers for Environmental Information", "@type": "org:Organization" }
references	[ "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0248063.html", "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/clivar_a20_a22.html", "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system" ]
rights	otherRestrictions
spatial	-50.24,6.32,-53.88,43.43
temporal	2021-03-16T00:00:00+00:00/2021-04-16T00:00:00+00:00
title	Dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, discrete pCO2, chlorofluorocarbons (CFC11, CFC12), dissolved organic carbon (DOC), water temperature, salinity, dissolved oxygen, nutrients and other hydrographic and chemical variables collected from discrete samples and profile observations during the R/V Thomas G. Thompson cruise on GO-SHIP repeat section A20 (EXPOCODE 325020210316) in the North Atlantic Ocean from 2021-03-16 to 2021-04-16 (NCEI Accession 0258957)