=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 10-OCT-94 :
gauge established in December 1989 but problems of subsidence reported,records for 1991-93 are corrected for the known subsidence 
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 2000Apr25 :
Trondheim 2         040/142 RLR(1995) is 13.9m below BM G24 N144
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 26-Oct-2009 :   
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.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 05-Sep-2012 :   
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.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 17-Nov-2015 :   
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.

