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.
Link to RLR information.
=========================== BENCHMARK INFORMATION UPDATE ADDED 12-JUL-93 : Brest 190/091 RLR(1964) is 12.5m below NGF no1 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 21-JAN-07 : Older data from Brest are taken from the original volumes of the Publications Scientifiques. In those, 1807-35 are said to be Mean Tide Level and 1846 onwards true Mean Sea Level. At Brest MSL is 29mm above MTL (some estimates say 23 mm), see Woppelmann et al. Ocean Dynamics, 56, 487-497, 2006 (and beware that the equation top of page 495 should read MTL-MSL). =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 21-Jul-2009 : All monthly means 1937, 1939-1943 replaced and small corrections made to 1917 following the work of Nicolas Pouvreau of the University of La Rochelle.
Data Authority
Service Hydrographique et Oceanographique de la Marine