Revised Local Reference (RLR) Diagram for IMMINGHAM

Station ID: 286

RLR diagram based on the information in the datum section below

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Datum information

SUBTRACT 4.715m from data values up to 1982 to refer to RLR (1964)
SUBTRACT 4.721m from data values 1983-1985 to refer to RLR (1964)
Add 2.869m to data values 1986 onwards to refer to RLR (1964)
RLR (1964) is 12.0m below TGBM TA 1989 1630