Viewshed GeoTIFF for Lukachukai

These are the "robust" viewsheds as calculated for Ruth M. Van Dyke, R. Kyle Bocinsky, Tucker Robinson, and Thomas C. Windes, Great houses, shrines, and high places: Intervisibility in the Chacoan World, American Antiquity 81, pp. 205–230 (2016).本数据集包含的“稳健视域（robust viewsheds）”，是为如下学术研究计算所得：该研究由Ruth M. Van Dyke、R. Kyle Bocinsky、Tucker Robinson及Thomas C. Windes共同开展，研究论文题为《大房子、圣所与高地：查科世界中的互视性》，发表于《美国古物》（American Antiquity）2016年第81卷，第205–230页。