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    • EK80 Water Column Sonar Data Collected During PC2404_Leg1

    Metadata Updated: May 1, 2025

    This project will provide critical data to NOAA and to the Mesophotic and Deep Benthic Communities (MDBC) projects. These data will be used for restoration and to guide future science-based management decisions. Without this project, NOAA and partners will not be able to use the best available science to guide their actions, including protection and restoration actions for sensitive communities.

    This expedition is part of the DWH Open Ocean TIG Final Restoration Plan 2 for MDBC. This plan will have direct consequences for defining the distribution, connectivity, and ecology of vulnerable ecological communities and guiding wise use of the living marine and energy resources.

    Operations To Be Conducted

    (A) 12 hr ROV operations (0700 – 1900). Mohawk ROV will be used to conduct transect surveys, video, and still image documentation of coral and reef fish communities. Collections of corals and other invertebrates will also be taken throughout the dives for genetic and isotope analysis. Details on deployment and recovery are provided below in section 2.7 (A). (B) CTD casts with water samples at each ROV dive site to be conducted at night (probably between 1900 - 0000). (C) Four landers to be deployed overnight (between 1900 - 0700) unless the ship prefers to deploy them during the daytime. Two will be in depths < 300 m and two will be in depths < 1000 m. Lander specifications have been sent to the ship. They will be deployed from the side sampling station winch, lowered to ~ 20 m above the seafloor and then acoustically released by the science party. (D) Up to four sets of 3 ARMS (Autonomous Reef Monitoring Structures) will be deployed during the day (between 0700 - 1900). An elevator will be used to deploy all 3 ARMS in a single ROV dive. Specifications on the elevator have been provided to the ship. The elevator will be deployed from the side sampling station winch and lowered to the seafloor during the dives ARMS are to be deployed. The ROV will navigate to the elevator and retrieve the ARMS for placement on the seafloor. The elevator will be recovered once all ARMS have been retrieved by the ROV. (E) Opportunistic MBES to be conducted at night (between 1900 - 0700) when it fits into the schedule.

    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 April 2, 2025
    Metadata Created Date May 1, 2025
    Metadata Updated Date May 1, 2025
    Reference Date(s) July 11, 2024 (creation), April 2, 2025 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NGDC MGG Sonar Water Column

    Other Data Resources

    Additional Metadata

    Resource Type Series
    Metadata Date April 2, 2025
    Metadata Created Date May 1, 2025
    Metadata Updated Date May 1, 2025
    Reference Date(s) July 11, 2024 (creation), April 2, 2025 (publication)
    Responsible Party (Point of Contact); NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ncei:PC2404_Leg1_EK80
    Access Constraints Cite as: NOAA/NMFS/SEFSC Panama City Laboratory, Woods Hole Oceanographic Institute, NRDA, Penn State university, NOAA NOS, University of North Carolina Wilmington. 2025. EK80 Water Column Sonar Data Collected During PC2404_Leg1. NOAA National Centers for Environmental Information. https://doi.org/10.25921/c26p-a590 [access date], Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., 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., Resource may not be available for up to one year after initial collection.
    Bbox East Long -88.50562
    Bbox North Lat 30.35788
    Bbox South Lat 27.56299
    Bbox West Long -92.3035
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id c194271e-f5be-4c2c-8660-bb6df1f53b8a
    Harvest Source Id ab8b0290-e4db-4a00-89f2-4e427c2054b2
    Harvest Source Title NGDC MGG Sonar Water Column
    Licence These data are considered raw and have not been subjected to the NOAA's quality control or quality assurance procedures. They are released for limited public use as preliminary data to be used only with appropriate caution. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty., Not subject to copyright protection within the United States.
    Lineage Uncalibrated
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-92.3035, 27.56299], [-88.50562, 27.56299], [-88.50562, 30.35788], [-92.3035, 30.35788], [-92.3035, 27.56299]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::4326
    Spatial Harvester True
    Temporal Extent Begin 2024-07-11T00:00:00
    Temporal Extent End 2024-07-27T11:59:59

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