Cp. Benosky et Cj. Merry, AUTOMATIC EXTRACTION OF WATERSHED CHARACTERISTICS USING SPATIAL-ANALYSIS TECHNIQUES WITH APPLICATION TO GROUNDWATER MAPPING, Journal of hydrology, 173(1-4), 1995, pp. 145-163
Spatial analysis techniques were developed using a raster-based image
processing system to derive geometric and morphologic characteristics
of watersheds from a digital elevation model. The watershed data layer
s were overlaid with digital soils information for two 71/2' quadrangl
es in the Cascade Mountains of Washington. The data layers were then i
ntegrated with a groundwater prediction model and maps of groundwater
level zones were prepared from the digital data sets. This information
can be useful in assessing the stability of slopes in landslide hazar
d prediction.