Soil sites

A soil site is a physical location that groups one or more soil locations, for example a field where several profile wells are located or where several drillings have been carried out. A soil site is linked to one or more soil locations. A soil location is linked to 0 or one soil site. A soil site may contain a geometry (polygon), but it is not mandatory. If geometry is not available, the convex casing of the point locations of the coupled soil location shall be used as geometry.