applied, the stratification accuracy for the New Mexico area frame did not improve
based on the automated process alone and for the Wisconsin and Nebraska area
frame stratification accuracies declined. These results illustrate the importance of the
manual editing and review process, specifically reducing the PSU sizes in the revised
area frames and focusing on editing PSUs so that, if selected, they can be broken
down into homogeneous segments. Furthermore, Table 14.6 illustrates the large
reduction in PSU sizes and the resulting reduction in standard deviations, based on
percent cultivation, when the traditional area frames are revised using the hybrid
method.
Fig. 14.10 Oklahoma traditional (top), automated (center), and hybrid (bottom) area frame stratifications. Zooms of the same location in all frames illustrate the larger amount of detail identified
using the CDL (center) and the hybrid frame (bottom) illustrates more detail and smaller PSU sizes
14 Geospatial Land Use and Land Cover Data for Improving Agricultural Area. . .
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