=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Rorvik              040/136 RLR(1972) is 9.2m below BM FM5
=========================== BENCHMARK INFORMATION UPDATE ADDED  12-JUL-93 :
Rorvik              040/136 RLR(1972) is 9.2m below BM FM5
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 30-MAR-95 :
tide gauge network modernised, new equipment installed in 1988
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 19-Jul-2010 :   
The Norwegian Mapping Authority has revised the complete dataset for
Rorvik.Primary bench mark is now H20 N61 7.077m above TGZ (see copy of the
Rorvik page from the Norwegian website
attached to the new RLR diagram).
RLR for the station has been re-calculated using 2008 as the RLR year. New RLR
factor is 5.723m
while RLR (2008) is 12.8m below TGBM H20 N61. 
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 05-Sep-2012 :   
For information on sea level change along the Norwegian coast see paper
"Contributions to sea level variability along the Norwegian coast for 1960-2010"
by K.Richter, J.E.O. Nilsen and H Drange.

