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| A large problem occurred with the DEM resolution. The level of detail needed to identify different runs of a given mountain wasn’t possible with 30m DEMs. 10m DEMs (if they exist) would be detailed enough to correlate the slopes on ArcMap to the trail map runs of Whistler. Because of this problem, I had to instead, look at large regions of slopes per mountain and compare mountains with one another.  I
wanted to compare maps made from raster to those same maps created
from vector. I quickly found that using the raster as a base for aspect
and slope maps is a much better approach. Since the vector base used
was a TIN, the slope map and especially aspect map proved to be an
unnessesary array of triangles. However, the slope map does confirm the
unusually moderate slope of Whistler, and the very high slopes of
Garibaldi Park. |
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From the DEM and Google Earth, the elevations of peaks
throughout Garibaldi could be determined. Then, along with the
elevations from the same DEM and table below, the heights could be
compared. It would be interesting to see how tall the highest peaks are
in Garibaldi since the tallest peaks could offer the most shade and be
at the coldest altitude in the region. If this is true, then those tall
points also probably have the longest year round snow cover.  | |||||
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Ari Shamash Last modified on Dec. 2010 |