1969-79(OCT) Data from readings of tide pole
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Katakolon           290/017 RLR(1977) is 9.6m below BM R11
=========================== BENCHMARK INFORMATION UPDATE ADDED  12-JUL-93 :
Katakolon           290/017 RLR(1977) is 9.6m below BM R11
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-MAR-97 :
The contributing authority advises that anomalous values
are the result of met. influences
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 07-Aug-2013 :   
With the receipt of datum diagrams from the Hellenic Navy the RLR diagram has been re-drawn. As a consequence the RLR factors have changed.

