Revised Local Reference (RLR) Diagram for LERWICK

Station ID: 830

RLR diagram based on the information in the datum section below

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Datum information

Add 6.036m to data values up to 1964 to refer to RLR(1987)
Add 6.95m to data values 1965-1979 to refer to RLR(1987)
Add 5.73m to data values 1980 onwards to refer to RLR(1987)
RLR (1987) is 10.3m below TGBM HU 4783 4129

Ellipsoidal information from SONEL (explanation)

RLR Height above ellipsoid:42.347 ± 0.010 m
Vertical Land Movement Rate:0.55 ± 0.28 mm/yr
GPS Solution:ULR6
GPS Site Used:LWTG
GPS Availability:2005-09-02 to 2015-02-16