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Dissolved inorganic carbon (DIC), total alkalinity, pH on sea water scale and other hydrographic and chemical variables collected from discrete samples and profile observations during NOAA Ship Ronald H. Brown cruise along the Global Ocean Ship-Based Hydrographic Investigation Program (GO-SHIP) Section I07N (EXPOCODE 33RO20180423) in the Indian Ocean on from 2018-04-23 to 2018-06-06 (NCEI Accession 0189249)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 03, 2026 at 03:21 AM | Dataset Last Updated: May 08, 2026 at 12:00 AM
This dataset includes discrete profile measurements of Dissolved inorganic carbon (DIC), total alkalinity, pH on sea water scale, dissolved organic carbon (DOC), chlorofluorocarbons (CFC-11, CFC-12), temperature, salinity, oxygen, nutrients, and other variables measured during NOAA Ship Ronald H. Brown cruise along the Global Ocean Ship-Based Hydrographic Investigation Program (GO-SHIP) Section I07N (EXPOCODE 33RO20180423) in the Indian Ocean on from 2018-04-23 to 2018-06-06. Hydrographic measurements were carried out along the I07N section in the western Indian Ocean in April-June 2018 under the auspices of GO-SHIP. The unique aspect of the 2018 I07N research cruise is that it was the first reoccupation of the I07N section since 1995. The section was not revisited for about 23 years because of the rise of piracy in the region.

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  • https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/goship_i07n.html

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

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0189249 CARBON - CARBON 14 ASSIMILATION CHLOROFLUOROCARBON (CFC) DISSOLVED INORGANIC CARBON (DIC) NUTRIENTS OXYGEN pH SALINITY

Complete Metadata
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accessLevel non-public
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describedByType application/octet-steam
description This dataset includes discrete profile measurements of Dissolved inorganic carbon (DIC), total alkalinity, pH on sea water scale, dissolved organic carbon (DOC), chlorofluorocarbons (CFC-11, CFC-12), temperature, salinity, oxygen, nutrients, and other variables measured during NOAA Ship Ronald H. Brown cruise along the Global Ocean Ship-Based Hydrographic Investigation Program (GO-SHIP) Section I07N (EXPOCODE 33RO20180423) in the Indian Ocean on from 2018-04-23 to 2018-06-06. Hydrographic measurements were carried out along the I07N section in the western Indian Ocean in April-June 2018 under the auspices of GO-SHIP. The unique aspect of the 2018 I07N research cruise is that it was the first reoccupation of the I07N section since 1995. The section was not revisited for about 23 years because of the rise of piracy in the region.
distribution 
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/0189249.xml
issued 2019-05-20T00:00:00.000+00:00
keyword 
[
  "0189249",
  "CARBON - CARBON 14 ASSIMILATION",
  "CHLOROFLUOROCARBON (CFC)",
  "DISSOLVED INORGANIC CARBON (DIC)",
  "NUTRIENTS",
  "OXYGEN",
  "pH",
  "SALINITY",
  "sulfur hexafluoride (SF6)",
  "total alkalinity",
  "WATER TEMPERATURE",
  "carbon dioxide (CO2) gas analyzer",
  "CTD",
  "Niskin bottle",
  "pH sensor",
  "salinometer",
  "titrator",
  "chemical",
  "discrete sample",
  "physical",
  "profile",
  "NOAA Ship Ronald H. Brown",
  "NOAA Atlantic Oceanographic and Meteorological Laboratory",
  "NOAA Pacific Marine Environmental Laboratory",
  "Princeton University",
  "The Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP)",
  "Indian 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",
  "I07N.2018",
  "33RO20180423",
  "Ocean Carbon and Acidification Data System (OCADS) Project",
  "GO-SHIP I07N",
  "The Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP)",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > CHLOROFLUOROCARBONS",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > DISSOLVED GASES",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > HYDROCARBONS",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH",
  "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE",
  "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY",
  "Discrete measurement",
  "ALKALI",
  "CFCs/SF6",
  "CTDOXY",
  "CTDSAL",
  "CTDTMP",
  "Dissolved Organic Carbon",
  "OXYGEN",
  "PH_SWS",
  "SALNTY",
  "SILCAT, NITRAT, NITRIT PHSPHT",
  "TCARBN",
  "CO2 ANALYZERS > CO2 ANALYZERS",
  "CTD > Conductivity, Temperature, Depth",
  "NISKIN BOTTLES",
  "PH METERS > PH METERS",
  "SALINOMETERS",
  "Ships",
  "Ronald H. Brown (call sign: WTEC, ICES code: 33RO, 1997-)",
  "OCEAN > INDIAN OCEAN",
  "Indian Ocean"
]
landingPage https://www.ncei.noaa.gov/contact
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2026-05-08T00:00:00.000+00:00
publisher 
{
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
[
  "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/goship_i07n.html",
  "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system"
]
rights otherRestrictions
spatial 69.7,-30.0,39.0,18.3
temporal 2018-04-23T00:00:00+00:00/2018-06-06T00:00:00+00:00
theme 
[
  "geospatial"
]
title Dissolved inorganic carbon (DIC), total alkalinity, pH on sea water scale and other hydrographic and chemical variables collected from discrete samples and profile observations during NOAA Ship Ronald H. Brown cruise along the Global Ocean Ship-Based Hydrographic Investigation Program (GO-SHIP) Section I07N (EXPOCODE 33RO20180423) in the Indian Ocean on from 2018-04-23 to 2018-06-06 (NCEI Accession 0189249)

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