Relations Between Field-surveyed Channel Networks and Map-based Geomorphometric Measures, Inez, Kentucky

Channel networks near Inez, Kentucky, were surveyed in the field within 29 small drainage basins that appeared on 1:24,000-scale maps to be unbranched (first order). The basins contained from 0 to 5 channel sources, with an average of 2.15 per basin. Many channel characteristics measured in the field are well correlated with morphometric variables measured from maps, but a substantial proportion of the variance remains unexplained. Although simple correlations are fairly strong for geometric characteristics, they are relatively weak (yet statistically significant) for topological measures. The spatial and temporal persistence of the empirical predictive relations is as yet unknown.