High resolution natural color imagery collected by uncrewed aircraft system (UAS) for mapping channel and vegetation change along a 6-mile reach of the Middle Green River at Ouray National Wildlife Refuge near Ouray, Utah from 2024-2025.
The U.S. Geological Survey collected low-altitude airborne natural color imagery via a fixed-wing uncrewed aircraft system (UAS) for mapping channel and vegetation change along a 6-mile reach of the Middle Green River at Ouray National Wildlife Refuge near Ouray, Utah. Visual imagery was collected in jpg format and Structure-from-Motion (SfM) photogrammetry techniques were applied (Over et al., 2021) using Agisoft Metashape Professional (v. 2.3.0 build 21954) to derive time-specific high-resolution 5 centimeter natural color orthomosaics of the study reach annually from 2024 to 2025. Ground control points (4feet x 4feet ground targets) were also surveyed in the field using Trimble RTK GPS survey units and were used in georectification in the SfM process.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Christopher Holmquist-Johnson", "@type": "vcard:Contact", "hasEmail": "mailto:h-johnsonc@usgs.gov" } |
| description | The U.S. Geological Survey collected low-altitude airborne natural color imagery via a fixed-wing uncrewed aircraft system (UAS) for mapping channel and vegetation change along a 6-mile reach of the Middle Green River at Ouray National Wildlife Refuge near Ouray, Utah. Visual imagery was collected in jpg format and Structure-from-Motion (SfM) photogrammetry techniques were applied (Over et al., 2021) using Agisoft Metashape Professional (v. 2.3.0 build 21954) to derive time-specific high-resolution 5 centimeter natural color orthomosaics of the study reach annually from 2024 to 2025. Ground control points (4feet x 4feet ground targets) were also surveyed in the field using Trimble RTK GPS survey units and were used in georectification in the SfM process. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P13HW8HT", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.6a57aeda1ba49b33d93d858b.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_6a57aeda1ba49b33d93d858b |
| keyword |
[ "Green River", "Ouray", "Ouray National Wildlife Refuge", "UAS", "USGS:6a57aeda1ba49b33d93d858b", "Utah", "aerial photography", "drone", "environment", "geoscientificInformation", "hydrology", "image collections", "imageryBaseMapsEarthCover", "remote sensing", "riparian", "surface water (non-marine)", "uncrewed aircraft system", "unoccupied aircraft system" ] |
| modified | 2026-08-03T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -109.62360, 40.15990, -109.56530, 40.19920 |
| theme |
[ "geospatial" ] |
| title | High resolution natural color imagery collected by uncrewed aircraft system (UAS) for mapping channel and vegetation change along a 6-mile reach of the Middle Green River at Ouray National Wildlife Refuge near Ouray, Utah from 2024-2025. |
