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Orthoimagery and elevation data derived from UAS imagery for Palmyra Atoll, USA 2016-Sand Island

Metadata Updated: October 29, 2023

This data set includes a point cloud, digital surface model (DSM), and orthoimagery of Sand Island at Palmyra Atoll, USA. Products were generated from aerial images collected in October 2016 using Unoccupied Aerial Systems (UAS, or "drones") with a Ricoh GRII digital camera. Imagery was processed using structure-from-motion photogrammetry that generates a three dimensional point cloud (.las) by identifying pixels from multiple images representing the same object and calculating the x, y, and z coordinates of that object/pixel. Point cloud data were processed to create a 6.3 cm resolution DSM (.tif) of the uppermost reflective surface (i.e., data have not been filtered for vegetation classes or height). Finally, source images were stitched together based on shared pixels and orthoganally adjusted to the DSM to create a 3.1 cm resolution orthoimage (.tif) for the study area.

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 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
Maintainer
@Id http://datainventory.doi.gov/id/dataset/2a906dccae0d7bf5827d22c4b7135862
Identifier USGS:5d4de4b8e4b01d82ce8e0803
Data Last Modified 20191118
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 4e1d9726-dd78-4f4c-8410-90b7691a35ec
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -162.1117,5.8669,-162.098,5.8804
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash cd124f3dadbc3f2d4a7c70a0877c9c490920cf1ee92c3d694a3a5936d909e101
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -162.1117, 5.8669, -162.1117, 5.8804, -162.098, 5.8804, -162.098, 5.8669, -162.1117, 5.8669}

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