Skip to main content
U.S. flag

An official website of the United States government

Dissolved inorganic carbon, total alkalinity, sensor pH, pCO2, rhodamine concentration, nutrients, and other variables obtained from a tracer study for the development of in-water monitoring, reporting, and verification (MRV) of ship-based ocean alkalinity enhancement aboard the R/V Connecticut crise (EXPOCODE 33LQ20230901) in the North Atlantic Ocean, Northeast U.S. Shelf in from 2023-09-02 to 2023-09-04 (NCEI Accession 0305856)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 06, 2026 at 03:37 AM | Dataset Last Updated: July 07, 2025 at 12:00 AM
This data package contains the shipboard (CTD bottle, CTD sensor profile, and underway measurements) and drifter data collected during a tracer study for the development of in-water monitoring, reporting, and verification (MRV) of ship-based ocean alkalinity enhancement aboard the R/V Connecticut in the North Atlantic Ocean, Northeast U.S. Shelf in September 2023. The campaign was named LOC-01, the first field campaign of the Locking Ocean Carbon in the Northeast Shelf and Slope (LOC-NESS) Project. A patch of rhodamine water tracer dye was created and then tracked and monitored for 36 hours using the ship’s underway system, a CTD rosette, and Lagrangian drifters. Measurements include rhodamine concentration, salinity, temperature, and a suite of carbonate and other chemical parameters. The cruise was designed to enable the development of a measurement, reporting, and verification (MRV) framework for ocean alkalinity enhancement (OAE), one that explicitly ties an OAE intervention and the resulting carbon dioxide removal to the dynamic baseline ocean state using these in situ observations.

Resources

9 resources available

Find Related Datasets

Search by Tags

Click any tag below to search for similar datasets

0305856 AMMONIUM (NH4) CHLOROPHYLL A DELTA CARBON-13 DELTA NITROGEN-15 DEPTH - OBSERVATION DISSOLVED INORGANIC CARBON (DIC) DISSOLVED OXYGEN

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 data package contains the shipboard (CTD bottle, CTD sensor profile, and underway measurements) and drifter data collected during a tracer study for the development of in-water monitoring, reporting, and verification (MRV) of ship-based ocean alkalinity enhancement aboard the R/V Connecticut in the North Atlantic Ocean, Northeast U.S. Shelf in September 2023. The campaign was named LOC-01, the first field campaign of the Locking Ocean Carbon in the Northeast Shelf and Slope (LOC-NESS) Project. A patch of rhodamine water tracer dye was created and then tracked and monitored for 36 hours using the ship’s underway system, a CTD rosette, and Lagrangian drifters. Measurements include rhodamine concentration, salinity, temperature, and a suite of carbonate and other chemical parameters. The cruise was designed to enable the development of a measurement, reporting, and verification (MRV) framework for ocean alkalinity enhancement (OAE), one that explicitly ties an OAE intervention and the resulting carbon dioxide removal to the dynamic baseline ocean state using these in situ observations.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "Project Metadata",
    "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0305856.html",
    "mediaType": "text/html",
    "description": "Navigate directly to the URL for a descriptive web page with download links.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Dataset Landing Page",
    "accessURL": "https://doi.org/10.25921/jssj-aw56",
    "mediaType": "text/html",
    "description": "Navigate directly to the URL for a descriptive web page with download links.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Descriptive Information",
    "accessURL": "https://www.ncei.noaa.gov/archive/accession/oas/305856",
    "mediaType": "text/html",
    "description": "Navigate directly to the URL for a descriptive web page with download links.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "HTTPS",
    "accessURL": "https://www.ncei.noaa.gov/archive/accession/download/305856",
    "mediaType": "text/html",
    "description": "Navigate directly to the URL for data access and direct download.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "FTP",
    "accessURL": "ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0231/0305856/",
    "mediaType": "text/html",
    "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).",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://doi.org/10.5194/egusphere-2025-1348",
    "accessURL": "https://doi.org/10.5194/egusphere-2025-1348",
    "mediaType": "text/html",
    "description": "related resource",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system",
    "accessURL": "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system",
    "mediaType": "text/html",
    "description": "OCADS website",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GCMD Keyword Forum Page",
    "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
    "mediaType": "text/html",
    "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",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Contact Information",
    "accessURL": "https://www.ncei.noaa.gov/contact",
    "mediaType": "text/html",
    "description": "Information for contacts at NCEI.",
    "describedByType": "application/octet-stream"
  }
]
identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/0305856.xml
issued 2025-07-03T00:00:00.000+00:00
keyword 
                                            [
  "0305856",
  "AMMONIUM (NH4)",
  "CHLOROPHYLL A",
  "DELTA CARBON-13",
  "DELTA NITROGEN-15",
  "DEPTH - OBSERVATION",
  "DISSOLVED INORGANIC CARBON (DIC)",
  "DISSOLVED OXYGEN",
  "HYDROSTATIC PRESSURE",
  "nitrate + nitrite content (concentration)",
  "partial pressure of carbon dioxide - water",
  "Particulate Inorganic Carbon",
  "PARTICULATE ORGANIC CARBON",
  "pH",
  "phosphate",
  "SALINITY",
  "silicate",
  "total alkalinity",
  "WATER TEMPERATURE",
  "buoy - drifting buoy",
  "carbon dioxide (CO2) gas analyzer",
  "CTD",
  "Niskin bottle",
  "nutrient autoanalyzer",
  "oxygen sensor",
  "pH sensor",
  "salinometer",
  "temperature sensor",
  "biological",
  "chemical",
  "discrete sample",
  "physical",
  "surface underway",
  "Connecticut",
  "Woods Hole Oceanographic Institution",
  "Woods Hole Oceanographic Institution",
  "Ocean Carbon and Acidification Data System (OCADS)",
  "Ship of Opportunity Programme (SOOP)",
  "East Coast - US/Canada",
  "North Atlantic Ocean",
  "oceanography",
  "WHOI > WOODS HOLE OCEANOGRAPHIC INSTITUTION",
  "LOC01",
  "33LQ20230901",
  "Ocean Carbon and Acidification Data System (OCADS) Project",
  "Coastal",
  "LOC-NESS",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE",
  "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 > OXYGEN",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH",
  "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",
  "Other",
  "Ammonium",
  "CTDOXY",
  "CTDPRES",
  "CTDSAL_PSS78",
  "CTDTEMP_ITS90",
  "Chl_a_sensor",
  "DIC",
  "Delta_C13_DIC",
  "Delta_C13_POC",
  "Delta_N15_TPN",
  "Depth",
  "Nitrate_and_Nitrite",
  "Oxygen",
  "Particulate_Inorganic_Carbon",
  "Particulate_Organic_Carbon",
  "Phosphate",
  "Rhodamine",
  "Salinity_PSS78",
  "Silicate",
  "Speed_mph",
  "TA",
  "Temperature_ITS90",
  "Temperature_hull_ITS90",
  "Temperature_lab_ITS90",
  "Total_Particulate_Nitrogen",
  "dfCO2",
  "pH_NBS_measured_electrode",
  "AUTOANALYZER > AUTOANALYZER",
  "CO2 ANALYZERS > CO2 ANALYZERS",
  "CTD > Conductivity, Temperature, Depth",
  "DRIFTING BUOYS > DRIFTING BUOYS",
  "NISKIN BOTTLES",
  "OXYGEN METERS > OXYGEN METERS",
  "PH METERS > PH METERS",
  "SALINOMETERS",
  "TEMPERATURE SENSORS > TEMPERATURE SENSORS",
  "Ships",
  "CONNECTICUT (call sign: WCY4995, ICES code: 33LQ, 1998-)",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN",
  "North Atlantic Ocean",
  "Northeast U.S. Shelf"
]
landingPage https://www.ncei.noaa.gov/contact
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2025-07-07T00:00:00.000+00:00
publisher 
                                            {
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
                                            [
  "https://doi.org/10.5194/egusphere-2025-1348",
  "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system"
]
rights otherRestrictions
spatial -70.661,41.0241,-72.0044,41.3021
temporal 2023-09-02T00:00:00+00:00/2023-09-04T00:00:00+00:00
title Dissolved inorganic carbon, total alkalinity, sensor pH, pCO2, rhodamine concentration, nutrients, and other variables obtained from a tracer study for the development of in-water monitoring, reporting, and verification (MRV) of ship-based ocean alkalinity enhancement aboard the R/V Connecticut crise (EXPOCODE 33LQ20230901) in the North Atlantic Ocean, Northeast U.S. Shelf in from 2023-09-02 to 2023-09-04 (NCEI Accession 0305856)

data.gov

An official website of the GSA's Technology Transformation Services

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