=========================== 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

