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The Illecillewaet (ILL-ah-SILL-ah-wet) Glacier in Glacier
National Park, British Columbia was selected as a glacier that has a
historic record of ground observations (below) dating back to the beginning of
the century, due to its accessibility from the Canadian Pacific Railway and later
the Trans-Canada Highway, as well as coverage by aerial photographs acquired in
the 1950s and 1978. Centered at 51 15' N, 117 30' W, the area is in this study considered to be representative of many alpine glaciers in the Canadian Cordillera. return to Glacier Mapping
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| Image
of Illecillewaet Glacier from the early 1900's. From BC
Archives.(985k image)
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Mapping
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View
from the top courtesy of the Columbia Mountain
Institute of Applied Ecology. return to Glacier
Mapping
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Classified
image of Illecillewaet Glacier obtained by utilizing the second, third and fourth
principal components of analysis of the glacierized area, isolated under a mask
created from a PCA of the entire scene, combined with TM4/TM5 ratio and NDSI (normalised
difference snow index) images as input to a maximum likelihood classification.
larger image with explaination
of points
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Mapping
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