=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991 Tvarminne 060/306 RLR(1936) is 9.0m below BM =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993 Tvarminne 060/306 RLR(1936) is 9.0m below BM =========================== 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)'. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 04-Oct-2012 Tvarminne is an historic station last data 1936