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.
Data for Port Bloc has been added to the PSMSL database.
Documentation added 2012-03-29
Primary benchmark is O. NP-6 7.808m above TGZ.
Documentation added 2014-09-29
When downloaded from SONEL the Port Bloc dataset has a lots of additional data included particularly for the 1960s and 1970s other areas of data had also been revised. Because of this the whole dataset has been re-loaded. Using data also from the SONEL website the values of the latitude and longitude have been revised.