=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991 Hanko/Hango 060/331 RLR(1964) is 9.7m below BM126 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 24-Sep-2002 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)'. 1887-1896 FCODE=06 1897-1903 FCODE=24 1904-1970 FCODE=06 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 03-Jan-2012 Levelling information supplied by the Finnish Meterological Institute confirms Primary benchmark remains 126 4.598m relative to gauge datum. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 27-Nov-2019 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.