Oskarsborg 040/331 RLR(1964) is 9.5m below BMG35N 138
Documentation added 1993-10-06
DATA UP TO 1986 FROM AUTHORITY CODE 03
Documentation added 1995-03-30
tide gauge network modernised, new equipment installed in 1990
Documentation added 2009-01-28
Following the input of revised data values station made Metric awaiting datum information.
Documentation added 2009-04-06
2007/8 mean sea level values entered as METRIC only awaiting confirmation of a datum query.
Documentation added 2010-07-20
The Norwegian Mapping Authority has revised all their datasets. Information was downloaded from the website. The Primary TGBM is now G35 N138 4.488m above TGZ. RLR was re-calculated using 2008 as the RLR year. The RLR factor is now 5.112m while RLR (2008) is 9.6m below TGBM G35 N138.
Documentation added 2012-09-05
For information of sea level rise along the Norwegian coast, see paper " Contributions to sea level variability along the Norwegian coast 1960-2010 " by K Richter, J.E.O. Nilsen and H Drange.
Documentation added 2018-01-30
Using updated data values supplied by the Norwegian Mapping Authority data values for November 1990, February and March 1996 and March, April and May2008 have been revised.
Norwegian Mapping Authority Hydrographic Service Po. Box 60 4001 Stavanger