=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 25-Apr-2000
Boucau              190/139 RLR(1993) is 13.2m below BM NGF no. 22
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 24-Sep-2014
Using figures from the SONEL website the latitude and longitude values have been revised.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 29-Sep-2014
When downloaded from the SONEL website there is a lot more data values for 1969-1991. Existing values were either the same or just 1mm different. The whole dataset has been entered onto the database.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 15-Jul-2025
Updated the whole dataset to ensure they include all the historical data recovered recently by SHOM and the calculated monthly and annual means match those distributed by SONEL.

