Revised Local Reference (RLR) Diagram for HELSINKI

Station ID: 14

RLR diagram based on the information in the datum section below

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Datum information

Add 7.087m to data values 1879-1903 to refer to RLR
Add 5.120m to data values 1904 onwards to refer to RLR
RLR is 9.601m below primary benchmark 7HB