=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Hammerfest          040/021 RLR(1964) is 9.8m below BM U3N23
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 06-Oct-1993
Data up to 1986 supplied by authority Statens Kartverk
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 30-Mar-1995
Tide gauge network modernised, new equipment installed in 1990
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 28-Jan-2009
Following the input of revised data values station made Metric awaiting datum information.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 06-Apr-2009
2007/8 mean sea level values entered as METRIC only awaiting confirmation of a datum query.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 27-Oct-2009
The Norwegian Mapping Authority have revised their datasets The benchmark reference for Hammerfest is now U3 N25 which is 8.655m above TGZ. As a result RLR was re-calculated using 2008 for the RLR year. The revised RLR factor is now 5.045m. RLR (2008) is 13.7m below TGBM U3 N25
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 29-Oct-2009
The PSMSL dataset begins in Jan 1957. Apparently there is earlier data on the Norwegian database but according to the site sheet the data before 1957 should not be used in any analysis.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 04-Aug-2010
There is a datum problem with Hammerfest data for 1970. Because of this the data has been 'switched off' within the database. This period of data does not appear on the Norwegian website.
=========================== 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.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 15-Jul-2013
The Norwegian authority has now confirmed that the data for Hammerfest for 1970 is missing from their database. They have asked PSMSL not to display this data.