Please note: In many cases, the station position in our database is accurate
to only one minute. Thus, the tide gauge may not appear to be on the coast.
Alexandroupolis 290/065 RLR(1977) is 9.1m below BM R29
Documentation added 1993-07-12
Alexandroupolis 290/065 RLR(1977) is 9.1m below BM R29
Documentation added 1997-03-11
The contributing authority advises that anomalous values are the result of met. influences
Documentation added 2013-06-26
The RLR diagram has temporarily been taken off line while a benchmark query is pursued.
Documentation added 2013-07-11
Following the receipt of new datum diagrams from the Hellenic Navy the RLR factor for the historic data up to 2001 has been revised. As this solves the datum problem the RLR diagram has been switched online again.
Data Authority
Hellenic Navy Hydrographic Service Geographic Policy and International Relations Office TGN 1040 Athens