Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • Dissolved inorganic carbon, total alkalinity, pH on Total Scale, nutrients and other variables collected from profile and discrete sample observations using CTD, Niskin bottle and other instruments during NOAA Ship Gordon Gunter cruise GU1804 (EXPOCODE 33GG20180822) in the North Atlantic Ocean, Gulf of Maine, Georges Bank, and Mid-Atlantic Bight from 2018-08-22 to 2018-08-31 (NCEI Accession 0188876)

    Metadata Updated: December 1, 2023

    This dataset contains dissolved inorganic carbon, total alkalinity, pH on total scale, nutrients and other variables measured from profile discrete observations during NOAA Ship Gordon Gunter cruise GU1804 (EXPOCODE 33GG20180822) in the North Atlantic Ocean, Gulf of Maine, Georges Bank, and Mid-Atlantic Bight from 2018-08-22 to 2018-08-31. Increasing amounts of atmospheric carbon dioxide from human industrial activities are causing changes in global ocean carbon chemistry ultimately resulting in a reduction in pH, a process termed ocean acidification. Studies have demonstrated adverse effects on calcifying organisms, particularly some invertebrates, corals, sea urchins, pteropods, and coccolithophores, but also on species of commercial interest such as oysters or crabs. In support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP), the Ecosystem Monitoring Cruises (ECOMON) are utilized to collect water samples to measure water column inorganic carbon and hydrographic parameters including nutrients. Samples are collected at three depths (surface, mid-depth and near bottom) at select stations on a quarterly basis in the northeastern Atlantic continental shelf region off the United States. Water samples are sent to and analyzed by scientists at the Atlantic Oceanographic and Meteorological Laboratory (AOML) for dissolved inorganic carbon, pH and total alkalinity concentrations. Additional samples are analyzed for nutrient concentrations at the University of Maine. These data are used to monitor short-long term coastal ocean acidification trends.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date 2023-09-28T13:18:16Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date December 1, 2023
    Reference Date(s) May 16, 2019 (publication), June 4, 2022 (revision)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Dataset
    Metadata Date 2023-09-28T13:18:16Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date December 1, 2023
    Reference Date(s) May 16, 2019 (publication), June 4, 2022 (revision)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0188876
    Access Constraints Cite as: Barbero, Leticia; Wanninkhof, Rik; Pierrot, Denis; Melrose, Donald C.; Fratantoni, Paula S.; Walsh, Harvey J.; Townsend, David W.; Thomas, Maura A.; Taylor, Christopher C. (2019). Dissolved inorganic carbon, total alkalinity, pH on Total Scale, nutrients and other variables collected from profile and discrete sample observations using CTD, Niskin bottle and other instruments during NOAA Ship Gordon Gunter cruise GU1804 (EXPOCODE 33GG20180822) in the North Atlantic Ocean, Gulf of Maine, Georges Bank, and Mid-Atlantic Bight from 2018-08-22 to 2018-08-31 (NCEI Accession 0188876). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/6at2-r476. Accessed [date]., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
    Bbox East Long -67.66
    Bbox North Lat 41.52
    Bbox South Lat 37.66
    Bbox West Long -75.01
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0188876
    Graphic Preview Type PNG
    Harvest Object Id 26e6c868-9bcc-4380-8821-3f9f6002bb75
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-75.01, 37.66], [-67.66, 37.66], [-67.66, 41.52], [-75.01, 41.52], [-75.01, 37.66]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2018-08-22
    Temporal Extent End 2018-08-31

    Didn't find what you're looking for? Suggest a dataset here.