Oulu/Uleaborg 060/011 RLR(1964) is 9.7m below BM116
Documentation added 1998-07-21
21 July 1998: RLR redefined following review of data revisions
Documentation added 2002-09-24
A description of the sea level network in Finland can be found in 'Operational Oceanography: Implementation at the European and Regional scales. 2002 (pp.129-137)'. 1889-1921 VALUES BASED ON 1 READING PER DAY 1922-1970 VALUES BASED ON 6 READINGS PER DAY
Documentation added 2012-01-09
Levelling information recently supplied by the Finnish Meteorological Institute confirms that the Primary benchmark remains 116 4.231m above the datum for 1913 onwards. This also brought attention to a previous error in the documentation. The relationship between BM 116 and RLR was quoted as being 9.5m when infact it should be 9.7m.
Documentation added 2017-05-04
Primary benchmark is now TGBM 04006 as the previous Primary benchmark TGBM 116 was destoyed during construction work.
Documentation added 2019-11-27
From 2018 onwards the averages of the Finnish sea level data will be based on 1 min observations. Values are calculated in Finnish normal time (EET). The data are relative to the reference surface of the Finnish sea level observations and thus the datum is the tide gauge zero.
Finnish Meteorological Institute Marine Research, Waves and Sea Level Erik Palenin aukio 1 P.O. Box 503 FI - 00101 Helsinki