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    • Mapping Extent for Sidescan Sonar and Bathymetry Data, 2014-2015, Gateway National Recreation Area

    Metadata Updated: June 4, 2024

    Polygon shapefile showing the coverage area of the acoustic mapping at Sandy Hook, NJ between July 2015 and August 2015. The side scan sonar survey was done simultaneously with the bathymetry swath survey and used an EdgeTech Model 4125 Towfish bow-mounted from Lookdown at 400 and 900 kHz. The 4125 Towfish utilizes EdgeTech’s Full Spectrum CHIRP technology to produce higher resolution images than a non-CHIRP system. EdgeTech Discovery Software was used to acquire the side scan sonar data using the JSF format at a resolution of about 2.3 cm. All JSF files collected using EdgeTech’s Discover Software were processed using John Gann’s Chesapeake Technology SonarWiz5. Dimensions of contacts should be considered accurate to +/- 30% of the measured dimensions. This system also records the direct arrival intensity data.

    Access & Use Information

    Public: This dataset is intended for public access and use. 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

    References

    https://irma.nps.gov/DataStore/Reference/Profile/2278676

    Dates

    Metadata Created Date June 1, 2023
    Metadata Updated Date June 4, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 1, 2023
    Metadata Updated Date June 4, 2024
    Publisher National Park Service
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/1ad35bb22e7bdc34c861ac1dbcf0e9a3
    Identifier NPS_DataStore_2278676
    Data First Published 2017-02-10T12:00:00Z
    Data Last Modified 2017-02-10
    Category geospatial
    Public Access Level public
    Bureau Code 010:24
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://datainventory.doi.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Data Quality True
    Harvest Object Id 108496d0-4bb2-47dd-8199-ebdb8900b589
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Homepage URL https://irma.nps.gov/DataStore/Reference/Profile/2278676
    Metadata Type geospatial
    Old Spatial -74.14016,40.3950768,-73.77641,40.65834
    Program Code 010:118, 010:119
    Publisher Hierarchy White House > U.S. Department of the Interior > National Park Service
    Related Documents https://irma.nps.gov/DataStore/Reference/Profile/2278676
    Source Datajson Identifier True
    Source Hash 3fe5649de1aa382f9413d635bb5f15d24748f450ed53b5e175b8f67bbd1a3d03
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -74.14016, 40.3950768, -74.14016, 40.65834, -73.77641, 40.65834, -73.77641, 40.3950768, -74.14016, 40.3950768}
    Temporal 2015-07-01T12:00:00Z/2015-08-01T12:00:00Z

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