Dissolved inorganic carbon (DIC), total alkalinity, water temperature, salinity and other variables collected from discrete sample and profile observations during the R/V Marion Dufresne OISO-22 cruise (EXPOCODE 35MV20130209) in the South Indian Ocean and the corresponding Southern Ocean sector from 2013-02-10 to 2013-03-09 (NCEI Accession 0290746)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 29, 2026 | Last Modified: 2024-04-03T00:00:00.000+00:00

This dataset is part of the long-term monitoring program OISO (Ocean Indien Service d'Observations) initiated in 1998, and covering contrasting regions in the South-West Indian Ocean from the subtropics to the Antarctic zone. It includes hydrological and biogeochemical measurements (temperature, salinity, oxygen, total CO2, alkalinity, nutrients, chlorophyll-a, d13C and d18O) collected in the water column (9 stations) using a rosette-CTD equipped with 24 Niskin bottles. Most of the samples were collected from the surface down to 1200m, except for 2 deep stations (down to the bottom at 30°S and 56.5°S). During the OISO-22 cruise we also collected underway fCO2 data (NCEI Accession 0116410), as well as underway total CO2 and alkalinity data (NCEI Accession 0173575) and complementary parameters collected in surface waters every 4h to 8h (nutrients, chlorophyll-a, d13C and d18O). The OISO data are regularly included in international data syntheses (SOCAT, GLODAP).

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 is part of the long-term monitoring program OISO (Ocean Indien Service d'Observations) initiated in 1998, and covering contrasting regions in the South-West Indian Ocean from the subtropics to the Antarctic zone. It includes hydrological and biogeochemical measurements (temperature, salinity, oxygen, total CO2, alkalinity, nutrients, chlorophyll-a, d13C and d18O) collected in the water column (9 stations) using a rosette-CTD equipped with 24 Niskin bottles. Most of the samples were collected from the surface down to 1200m, except for 2 deep stations (down to the bottom at 30°S and 56.5°S). During the OISO-22 cruise we also collected underway fCO2 data (NCEI Accession 0116410), as well as underway total CO2 and alkalinity data (NCEI Accession 0173575) and complementary parameters collected in surface waters every 4h to 8h (nutrients, chlorophyll-a, d13C and d18O). The OISO data are regularly included in international data syntheses (SOCAT, GLODAP).
distribution	[ { "@type": "dcat:Distribution", "title": "Project Metadata", "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0290746.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/eyca-bk79", "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/290746", "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/290746", "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/arc0224/0290746/", "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": "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/clivar_oiso.html", "accessURL": "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/clivar_oiso.html", "description": "related resource", "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:0290746
issued	2024-04-02T00:00:00.000+00:00
keyword	[ "0290746", "CHLOROPHYLL A", "DEPTH - OBSERVATION", "DISSOLVED INORGANIC CARBON (DIC)", "DISSOLVED OXYGEN", "HYDROSTATIC PRESSURE", "nitrate + nitrite content (concentration)", "NITRITE", "phosphate", "SALINITY", "silicate", "total alkalinity", "WATER TEMPERATURE", "carbon dioxide (CO2) gas analyzer", "CTD", "Niskin bottle", "nutrient autoanalyzer", "oxygen sensor", "temperature sensor", "thermosalinograph", "titrator", "biological", "chemical", "discrete sample", "physical", "profile", "Marion Dufresne", "Sorbonne University", "Sorbonne University", "The Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP)", "Indian Ocean", "oceanography", "OISO-22", "35MV20130209", "Ocean Carbon and Acidification Data System (OCADS) Project", "OISO", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE", "EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE", "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY", "Discrete measurement", "Profile", "OISO", "CTD_OXY", "CTD_OXY_CAL", "CTD_PRES", "CTD_SAL", "CTD_TEMP", "Chla", "Depth", "Meas_Oxygen", "Meas_Salinity", "NOx", "Nitrite", "Phosphate", "Silicate", "TA", "TCO2", "AUTOANALYZER > AUTOANALYZER", "CO2 ANALYZERS > CO2 ANALYZERS", "CTD > Conductivity, Temperature, Depth", "NISKIN BOTTLES", "OXYGEN METERS > OXYGEN METERS", "TEMPERATURE SENSORS > TEMPERATURE SENSORS", "THERMOSALINOGRAPHS", "MARION DUFRESNE (call sign: FNIN, ICES code: 35MV, 1995-)", "OCEAN > INDIAN OCEAN", "South Indian Ocean", "Southern Ocean" ]
landingPage	https://www.ncei.noaa.gov/contact
language	[]
license	https://creativecommons.org/publicdomain/zero/1.0/
modified	2024-04-03T00:00:00.000+00:00
publisher	{ "name": "NOAA National Centers for Environmental Information", "@type": "org:Organization" }
references	[ "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system", "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/clivar_oiso.html" ]
rights	otherRestrictions
spatial	81.0,-56.0,49.0,-26.0
temporal	2013-02-10T00:00:00+00:00/2013-03-09T00:00:00+00:00
title	Dissolved inorganic carbon (DIC), total alkalinity, water temperature, salinity and other variables collected from discrete sample and profile observations during the R/V Marion Dufresne OISO-22 cruise (EXPOCODE 35MV20130209) in the South Indian Ocean and the corresponding Southern Ocean sector from 2013-02-10 to 2013-03-09 (NCEI Accession 0290746)