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    • Persistent sand polygons, Lower Missouri River

    Metadata Updated: January 20, 2026

    Shapefile created by USGS. This is a polygon created from Landsat TM imagery. All Landsat 4-5 TM images overlapping the Missouri River downstream from Gavins Point Dam were identified and examined for lack of clouds. Usable images were classified into sand, vegetation, and water. Classified images were then merged, and the number of times a given pixel was classified as either sand, vegetation, or water were computed. The presented dataset represents pixels which were classified as sand in greater than 5% of images which were collected during a growing season defined as julian day 116-296 (to preclude vegetated islands, which classify as sand outside of foliation), translated into polygons.

    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 January 12, 2026
    Metadata Updated Date January 20, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 12, 2026
    Metadata Updated Date January 20, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_59c2d83ae4b091459a61d4b3
    Data Last Modified 2020-08-17T00:00:00Z
    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://ddi.doi.gov/usgs-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
    Datagov Dedupe Retained 20260119194142
    Harvest Object Id 7d04c080-8b77-4c1b-8cd7-3c97f0690336
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": -96.441214032, 38.511932093, -96.441214032, 42.540901401, -89.969700841, 42.540901401, -89.969700841, 38.511932093, -96.441214032, 38.511932093}
    Source Datajson Identifier True
    Source Hash e84978e0c8259546aaf9d77deb7f9354c200f448ba97652fa1ea7e2532b61a5c
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -96.441214032, 38.511932093, -96.441214032, 42.540901401, -89.969700841, 42.540901401, -89.969700841, 38.511932093, -96.441214032, 38.511932093}

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