Landscape Archaeology

Viewshed analysis produces a model of visible areas from a chosen point, given a 2.5 or 3D elevation model. Most often, we model full range visibility, in all directions from an observer point, but such models may not satisfy all uses. For instance, we are sometimes interested in a scene... [Read More]

Viewshed analysis denotes field of vision modelling in GIS jargon. The term is quite awkwardly borrowing its suffix from watershed, even if there is nothing being “shed”. Anyway, the term viewshed has become commonplace in GIS terminology and is here to stay. [Read More]

Ambient occlusion is a concept developed in 3D modelling and visualisation which is used to evaluate the exposition to the ambient light of each model element. The idea is to simulate the diffuse, scattered light that bounces off various surfaces. Such light may not have an identifiable source, as for... [Read More]

Introduction A common problem in visibility analysis is to determine the visual impact of a tall building, for instance a skyscraper or a wind turbine. Now, there is a variety of approaches to measure such impact: how tall does the building stand above the horizon, against which background is it... [Read More]

Le réseau de parcellaire qui recouvre les campagnes agricoles et pastorales est un sujet particulièrement cher aux archéologues du paysage. Les haies, les chemins, les murets et autres structures qui délimitent les champs cultivés et les pâturages ont parfois une persistance temporelle étonnante : le parcellaire de Hvar, en Croatie,... [Read More]