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    • Current/temperature measurements near the Sigsbee Escarpment from the MMS Desoto Canyon Intrusion Study, 19990829 - 20010906 (NCEI Accession 0002569)

    Metadata Updated: December 1, 2025

    During this study in-situ measurement of currents, temperature, and conductivity were made on a series of tautline moorings near the base of and on the Sigsbee Escarpment. These were supplemented during six of the 24 months of measurements by three Inverted Echo Sounders with Pressure. The primary objective of this project was documentation of near bottom/lower layer dynamics which have been identified as having high current speeds over an extended lower layer water column with near bottom intensification. Observations were often jointly funded by the MMS and BP. Results showed the layer below a nominal depth of 1000 m to have vertically highly coherent motion with a weak shear profile. The dominant process affecting currents at the base of the Escarpment appear to be Topographic Rossby Waves with periods of 8-11 days which moved through the study area in trains that could continue for many months. Current speeds as high as 1.75 kts. were measured 100 m above the bottom in 2000 m water depths.

    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 2025-03-19T23:16:26Z
    Metadata Created Date June 25, 2021
    Metadata Updated Date December 1, 2025
    Reference Date(s) February 10, 2006 (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 2025-03-19T23:16:26Z
    Metadata Created Date June 25, 2021
    Metadata Updated Date December 1, 2025
    Reference Date(s) February 10, 2006 (publication)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0002569
    Access Constraints Cite as: Blankinship, Paul R.; Science Applications International Corporation - Raleigh, NC (2006). Current/temperature measurements near the Sigsbee Escarpment from the MMS Desoto Canyon Intrusion Study, 19990829 - 20010906 (NCEI Accession 0002569). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0002569. 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 -89.7
    Bbox North Lat 27.38
    Bbox South Lat 27.11
    Bbox West Long -90.26
    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:0002569
    Graphic Preview Type PNG
    Harvest Object Id 9bcc3465-0c01-4502-afed-eae0f3a72aa1
    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": [[[-90.26, 27.11], [-89.7, 27.11], [-89.7, 27.38], [-90.26, 27.38], [-90.26, 27.11]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1999-08-29
    Temporal Extent End 2001-09-06

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