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Vegetation and water classifications for a segment of the Paria River upstream of the Colorado River Confluence, Arizona, USA

These data represent total vegetation and surface water along approximately 12 kilometers of the Paria River upstream from the confluence of the Colorado River at Lees Ferry, Arizona. They are derived from airborne, multispectral imagery obtained in late May 2009, 2013, and 2021, collected with a push-broom sensor with 4 spectral bands depicting Blue, Green, Red and Near-Infrared wavelengths at a spatial resolution of 20 centimeters. The vegetation classification data were created using a supervised classification algorithm provided by Harris Geospatial in ENVI version 5.6.3 (Exelis Visual Information Solutions, Boulder, Colorado). The water data were created using a Green Normalized Difference Vegetation Index (gNDVI) threshold of gNDVI <= 0.2. Each classification dataset contains unclassified pixels (0) and vegetation or surface water pixels (1) and are published as Cloud Optimized GeoTIFF raster datasets.

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Author(s) Anna Alfermann, Temuulen Tsagaan Sankey orcid, Nathaniel D Bransky, Joel B Sankey orcid
Publication Date 2024-02-08
Beginning Date of Data 2009
Ending Date of Data 2021
Data Contact
DOI https://doi.org/10.5066/P93Z392O
Citation Alfermann, A., Sankey, T.T., Bransky, N.D., and Sankey, J.B., 2024, Vegetation and water classifications for a segment of the Paria River upstream of the Colorado River Confluence, Arizona, USA: U.S. Geological Survey data release, https://doi.org/10.5066/P93Z392O.
Metadata Contact
Metadata Date 2024-02-08
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Citations of these data No citations of these data are known at this time.
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License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: ScienceBase
Harvest Date: 2026-04-24T13:11:32.902Z