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Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile
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Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile

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This presentation was delivered at the 2012 NEURISA Ignite Spatial Vermont event held in Montpelier, VT. http://www.neurisa.org/events?eventId=452847&EventViewMode=EventDetails

This presentation was delivered at the 2012 NEURISA Ignite Spatial Vermont event held in Montpelier, VT. http://www.neurisa.org/events?eventId=452847&EventViewMode=EventDetails

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  • 1. Evaluating Visual Decay Within the Chinchorro Landscape, Northern Chile John G. Van Hoesen Green Mountain College
  • 2. NSantoro et al. 2005
  • 3. Mina Macarena MaestranzaMorro
  • 4. Developed Nine indices • Line of sight • Depth of invisibility • Distance zones • Angle of incidence • Angle of depression • Angle of Elevation • Light • Depth & texture gradient • Temporal
  • 5. 60x 520x 1100xMattioli (2008)Higuchi (1983), pg. 14
  • 6. Distance Classification Maestranza Mina Macarena MorroNear Distance: Class 1 96 30 87Near Distance: Class 2 217 91 195Near Distance: Class 3 263 161 237Middle Distance: Class 4 1,011 898 910Middle Distance: Class 5 2,484 2,714 2,236Middle Distance: Class 6 8,249 2,385 7,424Far Distance 67,187 67,724 60,468Total Area (m2) 79,506 74,003 71,555
  • 7. Fisher (1994), p. 165 WHERE:μ = fuzzy membershipd = distance from viewpointb1 = maximum distance from viewpoint of clear visibility – (1km)b2 = distance from viewpoint at which visibility drops to 50% – (2km)
  • 8. Optimum Angle of elevation 8-10° Optimum Angle of depressionHiguchi (1983), pg. 40
  • 9. References• Arriaza, B., Standen, V., Belmonte, E. & Nails, F. (2001) The peopling of the Arica coast during the preceramic: a preliminary view, Chungará, 33 (1), pp. 31-36.• Fisher, P. (1994) Probable and fuzzy models of the viewshed operation, in: Worboys, M. (Ed.) Innovations in GIS, pp. 161-175 (London: Taylor and Francis).• Higuchi, T. (1983) The Visual and Spatial Structure of Landscapes. Ed. MIT Press, Cambridge, MA, 1a ed., 232 p.• Mattioli, T. (2008) Landscape analysis of a sample of rock-art sites in central Italy. In A. Posluschny, K. Lambers and I. Herzog (eds). Layers of Perception. Proceedings of the 35th International Conference on Computer Applications and Quantitative Methods in Archaeology (CAA), Berlin, Germany, April 2–6, 2007. Kolloquien zur Vor- und Frühgeschichte, Vol. 10. Bonn: Dr. Rudolf Habelt GmbH.• Santoro, C., Arriaza, B, Standen, V. & Marquet, P. (2005) People of the Coastal Atacama Desert Living Between Sand Dunes and Waves of the Pacific Ocean, in: Veth, P., Smith, M., Hiscock, P. (Ed.) Desert Peoples, Archaeological Perspectives, pp. 243- 260. (New Jersey: Blackwell Publishing).

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