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  • Side-scan Sonar Data, 2014-2015, Gateway National Recreation Area

    Metadata Updated: November 12, 2020

    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://www.nps.gov/im/ncbn/contactus.htm
    https://irma.nps.gov/DataStore/Reference/Profile/2278770

    Dates

    Metadata Created Date November 12, 2020
    Metadata Updated Date November 12, 2020

    Metadata Source

    Harvested from DOI Open Data

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date November 12, 2020
    Publisher National Park Service
    Unique Identifier Unknown
    Maintainer
    Identifier NPS_DataStore_2278770
    Data First Published 2017-02-10
    Data Last Modified 2017-02-10
    Category Geospatial Dataset
    Public Access Level public
    Bureau Code 010:24
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID D:\IRMA\DataStore\Application\OpenData\v1.1\NPS-DataStore.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
    Homepage URL https://irma.nps.gov/DataStore/Reference/Profile/2278770
    Program Code 010:118, 010:119
    Related Documents https://www.nps.gov/im/ncbn/contactus.htm, https://irma.nps.gov/DataStore/Reference/Profile/2278770
    Source Datajson Identifier True
    Source Hash 185866b6a5b2b54d8f6ee5b81d87dfceb0b2af85
    Source Schema Version 1.1
    Spatial -74.14016,40.3950768,-73.77641,40.65834
    Temporal 2014-01-01/2015-01-01

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