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, and other variables collected from discrete samples and profile observations during the R/V F. G. Walton Smith cruise WS23011 (EXPOCODE 33WA20230111) in the North Atlantic Ocean, Gulf of Mexico from 2023-01-11 to 2023-01-18 (NCEI Accession 0286367)

    Metadata Updated: December 1, 2025

    This dataset includes the 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 WS23011 (EXPOCODE 33WA20230111) in the North Atlantic Ocean, Gulf of Mexico from 2023-01-11 to 2023-01-18. Near-shore estuarine and coastal regions are where most recreational fishing and tourism occur, yet they are vastly under-sampled. Their susceptibility to OA is not well understood due to their high biogeochemical variability. These regions are affected by land-side processes such as river discharge and run-offs and ocean-side processes through slope water exchange. A full determination of the carbonate system in these regions in conjunction with open ocean measurements is needed to increase our understanding of the effects of OA on ocean health and fisheries and our ability to predict them. In this project, we propose to augment several observational campaigns by 1) adding a carbonate component to the harmful algal blooms (HABs) monitoring cruises conducted periodically on the Western Florida Shelf in order to study potential links between HABs and OA, 2) renewing our collaboration with select National Parks to complement and enhance our near-shore data collection on the Northern Gulf of Mexico and US East Coast, and 3) complementing our underway surface pCO2 measurements in the Gulf of Mexico and US East Coast with underway total alkalinity measurements to help us improve our fundamental understanding of nearshore OA processes. The addition of these measurements to the current assets already present in the region would enhance our understanding of the linkage between nearshore and open ocean processes and better assess the mechanisms and impacts of OA on the biogeochemistry, biology and their economic consequences.

    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 2025-10-03T13:08:14Z
    Metadata Created Date February 1, 2025
    Metadata Updated Date December 1, 2025
    Reference Date(s) December 21, 2023 (publication), September 2, 2025 (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 2025-10-03T13:08:14Z
    Metadata Created Date February 1, 2025
    Metadata Updated Date December 1, 2025
    Reference Date(s) December 21, 2023 (publication), September 2, 2025 (revision)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0286367
    Access Constraints Cite as: Pierrot, Denis; Barbero, Leticia; Wanninkhof, Rik; Zhang, Jia-Zhong; Kelble, Christopher R.; Mears, Patrick (2023). Dissolved inorganic carbon, total alkalinity, pH on total scale, and other variables collected from discrete samples and profile observations during the R/V F. G. Walton Smith cruise WS23011 (EXPOCODE 33WA20230111) in the North Atlantic Ocean, Gulf of Mexico from 2023-01-11 to 2023-01-18 (NCEI Accession 0286367). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/95dt-ne23. 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 -80.106
    Bbox North Lat 27.803
    Bbox South Lat 24.477
    Bbox West Long -83.495
    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:0286367
    Graphic Preview Type PNG
    Harvest Object Id 18a41e9e-d4ff-4d98-a4da-70981244d028
    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": [[[-83.495, 24.477], [-80.106, 24.477], [-80.106, 27.803], [-83.495, 27.803], [-83.495, 24.477]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2023-01-11
    Temporal Extent End 2023-01-18

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