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Orthophotos of the Buffalo National River in Arkansas acquired August 24, 2021

Metadata Updated: October 29, 2023

Digital aerial photographs of the Buffalo National River in northern Arkansas were acquired on August 24, 2021 to support research on remote sensing of benthic algae. The images included in this data release were obtained by the U.S. Fish and Wildlife Service using the following key pieces of equipment: Quest Kodiak K100 aircraft, PhaseOne iXURS-1000 4-band (RGB and NIR) 100 mega-pixel medium format digital camera, SOMAG gyro-stabilized/vibration isolation sensor mounting, and POS AV510 GNSS/IMU navigational system. The original images were processed using photogrammetry software to generate orthophotos for the entire project area, delivered as GeoTIFF tiles. The tiles covering each of the two primary study reaches were identified and combined into a separate mosaic for each reach using ArcMap GIS software. This data release includes a comma-delimited (*.csv) text file with a listing of the orthophoto mosaics with columns: River, Reach, AcquisitionDate, Sensor, PixelSizeMeters, Projection, Datum, and ImageFileName. The images are provided as GeoTIFF files with an embedded header that includes spatial referencing information. The map projection and datum for these data are UTM Zone 15 N and WGS84, respectively. This image data set was used to produce spectrally based depth estimates and classifications of benthic algal coverage.

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.

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Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023
Publisher U.S. Geological Survey
Identifier USGS:5dcd957be4b069579760af8c
Data Last Modified 20220207
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id eb013a1a-28a6-479d-b2ce-0d65794a8ed7
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -92.73457,35.97523,-92.60651,36.04965
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash a9f3373bf3056965f3d72c5026a7cc3636900878be26eb82d24f100947b9dae9
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -92.73457, 35.97523, -92.73457, 36.04965, -92.60651, 36.04965, -92.60651, 35.97523, -92.73457, 35.97523}

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