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    • 700kHz Multibeam Bathymetry Hillshade of select Rock Outcrops of the St. Croix River, May 2021

    Metadata Updated: July 6, 2024

    These data are digital hillshades of the bathymetry for five (of six) sites where known rock structures exist in the St. Croix River. Hillshades are shaded relief surfaces created by the illumination source angle and shadows, and are being used to investigate the use of hydroacoustic technologies for quantifying habitat for imperiled mussels Spectaclecase (Margaritifera monodonta) and Salamander (Simpsonaias ambigua) typically associated with rock structures (e.g., wing dams, revetment) in rivers. Hillshades are essential for visualizing details of underwater terrain and it represents a shaded relief surface of the topography. Multibeam sonar data were collected using a Norbit integrated wide band multibeam system compact (iWBMSc) sonar unit. Hillshades are derived from bathymetry DEMs. All hydroacoustic data were collected in early May of 2021, and the hillshades are provided in GeoTiff format.

    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

    Dates

    Metadata Created Date June 1, 2023
    Metadata Updated Date July 6, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 1, 2023
    Metadata Updated Date July 6, 2024
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/e2c776f98ec10d7251baf58cf1983b9b
    Identifier USGS:63598bb7d34ebe442503eb3c
    Data Last Modified 20221108
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    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
    Harvest Object Id 3aad6c5c-741d-4186-b7d7-af982b34d0c9
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -92.7636,45.2165,-92.6845,45.3712
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash c99437a5e516d4f2d2c61c606b9c202ebb5e37e6d829ec4dbb8bee8f7518cf96
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -92.7636, 45.2165, -92.7636, 45.3712, -92.6845, 45.3712, -92.6845, 45.2165, -92.7636, 45.2165}

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