R: Replicate Index
Type: number (1-9999)
The replicate index is used to distinguish between instruments that measure the same quantity at the same horizontal and vertical position, i.e. H and V are the same.
Numbering starts in the North direction and goes clockwise in extending circles during a first setup/re-setup. New and additional sensors may mix this up, layered maps are therefore mandatory at all sites.
Sometimes the geographic orientation of an instrument is needed, e.g. on a single tree not only the location but also the specific orientation of a dendrometer must be clear. The orientation of the instrument is visible from the assigned number in combination with the area map.