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Viewshed
analysis has been employed in many recent GIS studies to support
presumed visual relationships between the landscape and archaeological
features within it, or between those features themselves.
In these studies the cumulative viewshed has been used to
model and quantify the perceived 'importance' or level of
visual control of locations on a DEM. However, because the
properties of cumulative viewsheds are still poorly understood
it has been difficult to decide whether the viewshed properties
of features of archaeological interest are significantly different
from those of randomly chosen locations. This paper presents
some case studies exploring the properties of random or 'background'
cumulative viewsheds and their potential for classifying the
landscape into meaningful units
Key words: viewshed analysis, landscape classification
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