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    • Experimental testing of detection, localization, and call density of synthetic sounds using Navy surplus sonobuoys.

    Metadata Updated: March 1, 2024

    A series of synthesized sounds were played back from multiple locations around and within a grid of four DIFAR sonobuoys. Four type 53F DIFAR sonobuoys with attached SPOT GPS devices were deployed in a square with ~1nmi (2km) between each sonobuoy. Sound sources include periodic deployment of weighted light bulbs (producing an impulsive sound when the bulb implodes at depth) and synthetic tonal sounds broadcast through an underwater speaker. A time-synchronized multi-channel recording was made of the sounds received on the four sonobuoys. These experimental data have been used for multiple studies including testing methods to estimate sonobuoy drift, testing novel methods for detection and localization of sonobuoy signals, and testing methods for Acoustic Spatial Capture-Recapture (ASCR) methods for estimating call density. We encourage use of these methods for additional research and development.

    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 January 24, 2024
    Metadata Created Date March 1, 2024
    Metadata Updated Date March 1, 2024
    Reference Date(s) May 23, 2014 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NGDC MGG Passive Acoustic

    Other Data Resources

    Graphic Preview

    Monitoring locations for the sbPlayback project. Credit: NOAA

    Additional Metadata

    Resource Type Series
    Metadata Date January 24, 2024
    Metadata Created Date March 1, 2024
    Metadata Updated Date March 1, 2024
    Reference Date(s) May 23, 2014 (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ngdc.mgg.pad:sbPlayback_Raw_Data
    Access Constraints 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., Cite as: NOAA Fisheries Southwest Fisheries Science. 2016. Experimental testing of detection, localization, and call density of synthetic sounds using Navy surplus sonobuoys. NOAA National Centers for Environmental Information. https://doi.org/10.25921/s2dw-2h15 [access date], Resource may not be available for up to one year after initial collection.
    Bbox East Long -110
    Bbox North Lat 40
    Bbox South Lat 30
    Bbox West Long -127
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Monitoring locations for the sbPlayback project. Credit: NOAA
    Graphic Preview File https://www.ngdc.noaa.gov/mgg/pad/browse/SWFSC_SonobuoyPlaybackExperiement_Diagram.jpg
    Graphic Preview Type jpg
    Harvest Object Id dcf657e6-5999-49eb-8642-ff33c941b108
    Harvest Source Id 8812445c-2f10-47c5-80d9-c1bc92ca956d
    Harvest Source Title NGDC MGG Passive Acoustic
    Licence
    Lineage
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-127.0, 30.0], [-110.0, 30.0], [-110.0, 40.0], [-127.0, 40.0], [-127.0, 30.0]]]}
    Progress onGoing
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG:4326
    Spatial Harvester True
    Temporal Extent Begin 2016-06-07T16:13:00
    Temporal Extent End 2016-06-07T20:44:00

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