3 m Resolution Understory Cover for the Upper Gunnison Basin derived from 2015 and 2019 LiDAR Data
Description
<p>This is a map of vegetation understory cover or density for the Upper Gunnison River Basin based on 2015 and 2019 LiDAR data. Cover is measured as a proportion (0 representing no cover, and 1 representing complete cover). This dataset was generated from the normalized, elevation-corrected LiDAR point clouds, and was calculated as </p><p>Density = N_2 / T_2 </p><p>Where N_2 is the number of LiDAR returns between 0.25 and 2 m above the ground surface, and T is the total number of returns less than 2m above the surface. Calculation was implemented in the R package lidR. The ground-classified points were first used to generate a bare-earth surface, which was subtracted from the point cloud elevation to generate the normalized point cloud. Topographic artifacts and structures have not been removed from this dataset.</p>
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