Biophysical impacts on the morphological components of snow-avalanche paths, Glacier National Park, Montana

Abstract:

Snow-avalanche paths occurring within a portion of Glacier National Park, Montana were examined through a combination of graphical and statistical approaches to determine the relationship between morphological path components (source, track, and runout zone) and landcover, surficial geology, and lithology. In addition, the source, track, and runout zone of the 121 sampled paths were examined to determine whether the biophysical factor (structure, topography, and lithology) responsible for path location affected the relationship between morphological path components. Biophysical variables and path-specific information were organized within a GIS environment through graphical coverages and attribute tables within ARC/INFO. Thematic composites were derived through GIS techniques and displayed in three-dimensional perspectives to examine relationships which were confirmed and further studied through ANOVA, correlation, and simple regression analyses.

Año de publicación:

1991

Keywords:

Fuente:

scopus