Terrain (Subsidence Overlay)

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Terrains in a project have a number of properties which can influence the subsidence calculation. The subsidence model only takes properties of underground terrains into account. By default each location in the project area is covered by an underground terrain, and therefore each grid cell of the subsidence model can be given default values for the subsidence keys listed below. The subsidence terrain keys can all be overridden by overlapping Subsidence areas.