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

    Metadata Updated: July 6, 2024

    This dataset is a digital image mosaic of the backscatter for five (of six) sites where known rock structures exist in the St. Croix River. Backscatter is the strength of the returned signal, or reflectivity, of the riverbed and provides information about bed composition. This data can be used to investigate properties of the riverbed, such as hardness, sediment characteristics and even sediment grain size. Backscatter information will be used for investigating 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. MBES bathymetry and backscatter data are collected at the same time; and were collected using a Norbit integrated wide band multibeam system compact (iWBMSc) sonar unit. All hydroacoustic data were collected in early May of 2021, and the backscatter mosaics 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/c041bbd37f30f3733eb425d9e43e25a7
    Identifier USGS:6359a287d34ebe442503eb96
    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 30f836a4-3dea-45cb-8118-a00020f88261
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -92.7636,45.2165,-92.6848,45.3712
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash 330015ae80ed2d84570d5d8849a557a162637aee265dd54231b0f24c1778e23a
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -92.7636, 45.2165, -92.7636, 45.3712, -92.6848, 45.3712, -92.6848, 45.2165, -92.7636, 45.2165}

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