PRIOR TO 1959 MSL VALUES BASED ON READINGS OF HIGH AND LOW WATER
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Cascais             210/021 RLR(1964) is 11.2m below BMOb1
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 31-Oct-1995
Oct- Nov 1993 values checked and as received from authority
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 13-Jan-1997
data for 1985-87 revised January 1997
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 28-Mar-2001
Data for 1986-93 updated March 2001
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 06-Apr-2001
Cascais experienced a small tsunami on 28 February 1969 following a M=7.3 earthquake on the Horseshoe Abyssal Plain at 36 N 11 W.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 05-Feb-2002
Cascais 1994-1999 gap due to malfunction.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 22-Jan-2016
A value of MTL-MSL=4 mm has been applied to the RLR data for the period 1882-1958. The values were derived using the GESLA2 (high-frequency tide gauge) dataset using harmonic constituents.