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    • Profile and bottle data collected on the RV Melville (cruise Vancouver 06) from the Agulhas-South Atlantic Thermohaline Transport Experiment (ASTTEX) in the Atlantic Ocean from 20030102 to 20030115 (NCEI Accession 0074001)

    Metadata Updated: July 28, 2023

    Introduction: The Agulhas-South Atlantic Thermohaline Experiment (ASTTEX) examined the fluxes of heat, salt and mass entering the South Atlantic ocean via the Agulhas Retroflection. The goal of the experiment was to provide a quantitative, multi-year Eulerian measurement of the strength and characteristic scales of Agulhas-South Atlantic mass and thermohaline fluxes, which contain a strong mesoscale component, resolving those fluxes on density horizons.

    Methods: The core of the ASTTEX field component was a 27-month deployment of sixteen moorings that monitored the transports of Indian Ocean water into the South Atlantic via the Agulhas Current at eddy-resolving resolution (70 - 80 km). The moored array consisted of twelve pressure sensor-equipped inverted echo sounders (PIES) three near-bottom acoustic current meters (ACMs), and one validation mooring equipped with six recording conductivity-temperature (CT) sensors and four vector averaging current meters (VACMs). All of the moorings were deployed along Topex-Poseidon/Jason satellite altimeter groundtrack 133. The mooring deployment and first hydrographic survey cruise (R/V Melville cruise Vancouver 06) were begun on January 2, 2003 and mooring recovery and second hydrographic cruise (RRS Discovery cruise 290) were completed on April 9, 2005. Hydrographic survey data include CTDO, XBT and XCTD profile data, and bottle samples of salinity and dissolved oxygen.

    ASTTEX also included the large-scale analysis of regional sea surface height (SSH) anomaly fields during the field portion of the experiment as well as a long-term (12-year) analysis of Agulhas eddies in the SSH record (1992-2004). This component, spearheaded by Dr. Donna Witter of Kent State University, provided a large-scale, low-frequency context for the experiment. The SSH fields were derived from a combination of Topex-Poseidon and Jason-1 altimeter data.

    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.

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    Dates

    Metadata Date 2022-07-01T18:11:36Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date July 28, 2023
    Reference Date(s) July 1, 2011 (publication)
    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 2022-07-01T18:11:36Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date July 28, 2023
    Reference Date(s) July 1, 2011 (publication)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0074001
    Access Constraints Cite as: Byrne, Deirdre A.; UMaine (2011). Profile and bottle data collected on the RV Melville (cruise Vancouver 06) from the Agulhas-South Atlantic Thermohaline Transport Experiment (ASTTEX) in the Atlantic Ocean from 20030102 to 20030115 (NCEI Accession 0074001). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0074001. 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 17.6663
    Bbox North Lat -31.2958
    Bbox South Lat -40.318
    Bbox West Long 10.5485
    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:0074001
    Graphic Preview Type PNG
    Harvest Object Id c3e5c011-e5d3-4c69-88b3-bded1b823db8
    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": [[[10.5485, -40.318], [17.6663, -40.318], [17.6663, -31.2958], [10.5485, -31.2958], [10.5485, -40.318]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2003-01-02
    Temporal Extent End 2003-01-15

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