gauge established in December 1989 but problems of subsidence reported,records for 1991-93 are corrected for the known subsidence
Documentation added 2000-04-25
Trondheim 2 040/142 RLR(1995) is 13.9m below BM G24 N144
Documentation added 2009-10-26
The gauge at Trondheim is sinking at a rate of 1-2mm per year. They will look at new levelling data before deciding what to do. See letter of 24th March 2009.
Documentation added 2012-09-05
For information of sea level change along the Norwegian coast see paper "Contributions to sea level rise along the Norwegian coast for 1960-2010" by K. Richter, J.E.O. Nilsen and H. Drange.
Documentation added 2015-11-17
The PSMSL has been notified by the Norwegian Authority that the tide gauge at Trondheim is sinking. The rate of sinking has been confirmed as 0.85mm/year. with the supply of the 2014 sea level data a revised dataset beginning January 1990 has been supplied. Future data will be supplied with the correction applied.
Norwegian Mapping Authority Hydrographic Service Po. Box 60 4001 Stavanger