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    • Dissolved inorganic carbon, total alkalinity, pH on total scale, and other variables collected from discrete and profile observations during R/V F. G. Walton Smith cruise WS20231 (EXPOCODE 33WA20200818) in the Southeast U.S. Shelf, Gulf of Mexico from 2020-08-18 to 2020-08-22 (NCEI Accession 0231440)

    Metadata Updated: March 5, 2026

    This dataset contains discrete profile measurements of dissolved inorganic carbon, total alkalinity, pH on total scale, ammonia, water temperature, salinity, dissolved oxygen and nutrients during the R/V F. G. Walton Smith cruise WS20231 (EXPOCODE 33WA20200818) in the Southeast U.S. Shelf, Gulf of Mexico from 2020-08-18 to 2020-08-22.

    Increasing amounts of atmospheric carbon dioxide from human industrial activities are causing changes in global ocean carbon chemistry resulting in a reduction in pH, a process termed ocean acidification. In support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP), the South Florida Project Cruises (SFP) are utilized to collect water samples to measure surface water inorganic carbon and hydrographic parameters including nutrients. Samples are collected from 34 stations on a bi-monthly basis to monitor the outflow of the Shark River Slough (SRS) and red tide in the southwestern Gulf of Mexico. Water samples are sent to and analyzed by scientists at the Atlantic Oceanographic and Meteorological Laboratory (AOML) for dissolved inorganic carbon, pH, total alkalinity and nutrient concentrations. These data are used to observe the effects of the SRS on acidification in the coastal ocean.

    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 2025-12-15T07:39:51Z
    Metadata Created Date July 2, 2021
    Metadata Updated Date March 5, 2026
    Reference Date(s) April 30, 2021 (publication), August 10, 2021 (revision), April 26, 2021 (creation)
    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 2025-12-15T07:39:51Z
    Metadata Created Date July 2, 2021
    Metadata Updated Date March 5, 2026
    Reference Date(s) April 30, 2021 (publication), August 10, 2021 (revision), April 26, 2021 (creation)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0231440
    Access Constraints Cite as: Barbero, Leticia; Wanninkhof, Rik; Pierrot, Denis (2021). Dissolved inorganic carbon, total alkalinity, pH on total scale, and other variables collected from discrete and profile observations during R/V F. G. Walton Smith cruise WS20231 (EXPOCODE 33WA20200818) in the Southeast U.S. Shelf, Gulf of Mexico from 2020-08-18 to 2020-08-22 (NCEI Accession 0231440). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/cem0-6x44. 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 -80.530554
    Bbox North Lat 26.923907
    Bbox South Lat 24.655274
    Bbox West Long -82.698581
    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:0231440
    Graphic Preview Type PNG
    Harvest Object Id c83b7667-002b-4a7f-b5e8-ab896ee4d1ab
    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": [[[-82.698581, 24.655274], [-80.530554, 24.655274], [-80.530554, 26.923907], [-82.698581, 26.923907], [-82.698581, 24.655274]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2020-08-18
    Temporal Extent End 2020-08-22

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