1 m Resolution topographic aspect "southness" for the Upper Gunnison Basin derived from 2015 and 2019 LiDAR

Description

<p>This is a 1 m resolution map of the relative "southness" of topographic aspect, computed from the cosine of the topographic aspect using the equation: </p><p>cos(aspect_radians) * -1 </p><p>North-facing aspects have a value of -1 and south-facing aspects have a value of 1. East and west-facing aspects have a value of 0. The original aspect map was derived from a 1m Digital Elevation Model (DEM) for the Upper Gunnison River derived from public LiDAR datasets. The primary data source was a 2019 LiDAR collection for Gunnison County. A small portion of the upper basin was not covered by this dataset, and for those areas, data from a 2015 aquisition was substituted.</p><p>Aspect is broken into north-south and east-west components to avoid the common error of ignoring the discontinuity at aspects of 0 / 360 degrees (North) in spatial prediction models.</p>

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