Skip to main content
U.S. flag

An official website of the United States government

This site is currently in beta, and your feedback is helping shape its ongoing development.

Dissolved inorganic carbon, total alkalinity, pH, nutrients and other variables collected from discrete profile observations using CTD, Niskin bottle, and other instruments in the East Coast of the U.S. and Canada during the 2nd East Coast Ocean Acidification (ECOA2, or ECOA-2) cruise from 2018-06-25 to 2018-07-29 (NCEI Accession 0196419)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 29, 2026 | Last Modified: 2023-05-19T00:00:00.000+00:00
This dataset contains the discrete bottle data from the second East Coast Ocean Acidification (ECOA2 or ECOA-2). The ECOA2 Cruise on board NOAA Ship Henry B. Bigelow from Newport, took place in the Gulf of Maine and then along the East US coast to Miami. The effort was in support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP). The cruise was designed to obtain a snapshot of key carbon, physical, and biogeochemical parameters as they relate to ocean acidification (OA) in the coastal realm. The cruise included a series of 14 transects approximately orthogonal to the Gulf of Maine and Atlantic coasts and a comprehensive set of underway measurements along the entire transect.

Find Related Datasets

Click any tag below to search for similar datasets

0196419 CHLOROPHYLL A Chromophoric Dissolved Organic Matter (CDOM) Delta Oxygen-18 DISSOLVED INORGANIC CARBON (DIC) DISSOLVED ORGANIC CARBON DISSOLVED OXYGEN ELECTRON TRANSPORT SYSTEM Methane (CH4) nitrate + nitrite content (concentration) NITROGEN - PARTICULATE Partial pressure (or fugacity) of carbon dioxide - atmosphere PARTICULATE ORGANIC CARBON pH phosphate SALINITY silicate suspended solids total alkalinity WATER TEMPERATURE CTD Niskin bottle chemical discrete sample profile NOAA Ship Henry B. Bigelow Bedford Institute of Oceanography NASA Goddard Space Flight Center NOAA Atlantic Oceanographic and Meteorological Laboratory University of Delaware University of Maine University of Miami University of New Hampshire University of New Hampshire NODC Ocean Acidification Scientific Data Stewardship (OADS) US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP) Bay of Fundy East Coast - US/Canada Gulf of Maine Mid-Atlantic Bight oceanography CA/DFO/BIO > Bedford Institute of Oceanography, Fisheries and Oceans, Canada DOC/NOAA/OAR/AOML > Atlantic Oceanographic and Meteorological Laboratory, OAR, NOAA, U.S. Department of Commerce UMAINE > University of Maine HB-18-04 ECOA2 33HH20180625 Ocean Acidification Program (OAP) Ocean Carbon and Acidification Data System (OCADS) Project EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE > PARTIAL PRESSURE OF CARBON DIOXIDE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY 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 > NITROGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER 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 CHEMISTRY > SUSPENDED SOLIDS EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY Discrete measurement Profile ALKALI CDOM CH4 CTD_o2_1_conc CTD_o2_2_conc DIC_AOML DOC ETS_0.4 ETS_GFF HPLC_chl_a NO2+NO3 PH_TOT PN PO4 POC Pressure Sal_1 Sal_2 Silicate TSM Temp_1 Temp_2 oxygen pCO2_a_T22 δ18O CTD > Conductivity, Temperature, Depth NISKIN BOTTLES Ships HENRY B. BIGELOW (call sign: WTDF, ICES code: 33HH, 2005-) OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > BAY OF FUNDY OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MAINE Bay of Fundy East Coast of the U.S. and Canada Gulf of Maine Mid-Atlantic Bight South Atlantic Bight

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 contains the discrete bottle data from the second East Coast Ocean Acidification (ECOA2 or ECOA-2). The ECOA2 Cruise on board NOAA Ship Henry B. Bigelow from Newport, took place in the Gulf of Maine and then along the East US coast to Miami. The effort was in support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP). The cruise was designed to obtain a snapshot of key carbon, physical, and biogeochemical parameters as they relate to ocean acidification (OA) in the coastal realm. The cruise included a series of 14 transects approximately orthogonal to the Gulf of Maine and Atlantic coasts and a comprehensive set of underway measurements along the entire transect.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "Project Metadata",
    "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0196419.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/f4vg-g356",
    "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/196419",
    "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/196419",
    "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/arc0143/0196419/",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.aoml.noaa.gov/ocd/gcc/ECOA/",
    "mediaType": "placeholder/value",
    "description": "related publication or dataset",
    "downloadURL": "https://www.aoml.noaa.gov/ocd/gcc/ECOA/",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0194299.html",
    "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0194299.html",
    "description": "Related data",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0196423.html",
    "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0196423.html",
    "description": "Related data",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0215462.html",
    "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0215462.html",
    "description": "Related data",
    "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/data/oceans/ncei/ocads/metadata/0310406.html",
    "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0310406.html",
    "description": "Related data",
    "describedByType": "application/octet-steam"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0283329.html",
    "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0283329.html",
    "description": "Related data",
    "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:0196419
issued 2019-08-12T00:00:00.000+00:00
keyword 
                                            [
  "0196419",
  "CHLOROPHYLL A",
  "Chromophoric Dissolved Organic Matter (CDOM)",
  "Delta Oxygen-18",
  "DISSOLVED INORGANIC CARBON (DIC)",
  "DISSOLVED ORGANIC CARBON",
  "DISSOLVED OXYGEN",
  "ELECTRON TRANSPORT SYSTEM",
  "Methane (CH4)",
  "nitrate + nitrite content (concentration)",
  "NITROGEN - PARTICULATE",
  "Partial pressure (or fugacity) of carbon dioxide - atmosphere",
  "PARTICULATE ORGANIC CARBON",
  "pH",
  "phosphate",
  "SALINITY",
  "silicate",
  "suspended solids",
  "total alkalinity",
  "WATER TEMPERATURE",
  "CTD",
  "Niskin bottle",
  "chemical",
  "discrete sample",
  "profile",
  "NOAA Ship Henry B. Bigelow",
  "Bedford Institute of Oceanography",
  "NASA Goddard Space Flight Center",
  "NOAA Atlantic Oceanographic and Meteorological Laboratory",
  "University of Delaware",
  "University of Maine",
  "University of Miami",
  "University of New Hampshire",
  "University of New Hampshire",
  "NODC Ocean Acidification Scientific Data Stewardship (OADS)",
  "US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP)",
  "Bay of Fundy",
  "East Coast - US/Canada",
  "Gulf of Maine",
  "Mid-Atlantic Bight",
  "oceanography",
  "CA/DFO/BIO > Bedford Institute of Oceanography, Fisheries and Oceans, Canada",
  "DOC/NOAA/OAR/AOML > Atlantic Oceanographic and Meteorological Laboratory, OAR, NOAA, U.S. Department of Commerce",
  "UMAINE > University of Maine",
  "HB-18-04 ECOA2",
  "33HH20180625",
  "Ocean Acidification Program (OAP)",
  "Ocean Carbon and Acidification Data System (OCADS) Project",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE > PARTIAL PRESSURE OF CARBON DIOXIDE",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY",
  "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 > NITROGEN",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER",
  "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 CHEMISTRY > SUSPENDED SOLIDS",
  "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE",
  "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY",
  "Discrete measurement",
  "Profile",
  "ALKALI",
  "CDOM",
  "CH4",
  "CTD_o2_1_conc",
  "CTD_o2_2_conc",
  "DIC_AOML",
  "DOC",
  "ETS_0.4",
  "ETS_GFF",
  "HPLC_chl_a",
  "NO2+NO3",
  "PH_TOT",
  "PN",
  "PO4",
  "POC",
  "Pressure",
  "Sal_1",
  "Sal_2",
  "Silicate",
  "TSM",
  "Temp_1",
  "Temp_2",
  "oxygen",
  "pCO2_a_T22",
  "δ18O",
  "CTD > Conductivity, Temperature, Depth",
  "NISKIN BOTTLES",
  "Ships",
  "HENRY B. BIGELOW (call sign: WTDF, ICES code: 33HH, 2005-)",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > BAY OF FUNDY",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MAINE",
  "Bay of Fundy",
  "East Coast of the U.S. and Canada",
  "Gulf of Maine",
  "Mid-Atlantic Bight",
  "South Atlantic Bight"
]
landingPage https://www.ncei.noaa.gov/contact
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2023-05-19T00:00:00.000+00:00
publisher 
                                            {
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
                                            [
  "https://www.aoml.noaa.gov/ocd/gcc/ECOA/",
  "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0194299.html",
  "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0196423.html",
  "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0215462.html",
  "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system",
  "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0310406.html",
  "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0283329.html"
]
rights otherRestrictions
spatial -61.398,26.945,-80.975,45.006
temporal 2018-06-25T00:00:00+00:00/2018-07-29T00:00:00+00:00
title Dissolved inorganic carbon, total alkalinity, pH, nutrients and other variables collected from discrete profile observations using CTD, Niskin bottle, and other instruments in the East Coast of the U.S. and Canada during the 2nd East Coast Ocean Acidification (ECOA2, or ECOA-2) cruise from 2018-06-25 to 2018-07-29 (NCEI Accession 0196419)

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov