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Hillshade DEM Sample:
The data
demonstrated here is an assemblage of information obtained from The United
States Geological Survey (USGS) and presented with raster data. The digital elevation model (DEM) utilities
were exercised from within the ArcGIS software to present the information.
Presented is a demonstration of a shaded relief model which is specific to
exemplify the terrain/elevation. The following information is pertinent to the
sample above and was obtained from the USGS the values listed are between the
low of 0 to a high of 254. Other than the numeric values, the base height
conversion values are not provided. Spatial reference is noted as ‘GCS_North_American_1983’,
Datum is noted as D_North_American_1983 and degrees are listed under ‘Angular
Unit’ as 0.0174532925199433. However, the Extent
information is the following; Top 49.0016666667, Left -120.001666667, Right -118.998333333,
and Bottom 47.9983333333.
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Slope DEM Sample:
The data
demonstrated here is an assemblage of information obtained from The United
States Geological Survey (USGS) and presented with raster data. The digital elevation model (DEM) utilities
were exercised from within the ArcGIS software to present the information.
Presented is a demonstration of a shaded relief model which demonstrates values
that reflect the steepness of the given
surface. The following information is pertinent to the sample above and was
obtained from the USGS the values listed are between the low of 0 to a high of
247.681. Other than the numeric values, the base height conversion values are
not provided. Spatial reference is noted as ‘GCS_North_American_1983’, Datum is
noted as D_North_American_1983 and degrees are listed under ‘Angular Unit’ are
provided as 0.0174532925199433. However, the Extent information is the following; Top 49.0016666667, Left -120.001666667,
Right -118.998333333, and Bottom 47.9983333333.
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Aspect DEM Sample:
The data
demonstrated here is an assemblage of information obtained from The United
States Geological Survey (USGS) and presented with raster data. The digital elevation model (DEM) utilities
were exercised from within the ArcGIS software to present the information.
Presented is a demonstration of a shaded relief model which provides an aspect
layer with values that range from -1 (flat) to 360 (North). These values refer
to the direction at which specific areas of the DEM face. Other than the
numeric values, the base height conversion values are not provided. Spatial
reference is noted as ‘GCS_North_American_1983’, Datum is noted as
D_North_American_1983 and degrees are listed under ‘Angular Unit’ are provided as
0.0174532925199433. However, the Extent information
is the following; Top 49.0016666667, Left -120.001666667, Right -118.998333333,
and Bottom 47.9983333333.
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3D DEM
Demonstrated here is a 3D rendering constructed
by combining the previously complied and pictured DEM data. Collectively it
helps illustrate the hillshade, slope and aspect features.
