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.
For discussions of MSL changes and extreme sea levels around Namibia and South Africa, see: G.B.Brundrit, S.Afr.J.Mar.Sci.,16,9-17,1995 and S.Searson and G.B.Brundrit, S.Afr.J.of Science, 91,579-588,1995.
Documentation added 2009-09-24
Heights of chart datum relative to land levelling datum in South Africa and Namibia: Hermanus Datum: up to 31st Dec 1978 = -0.619 Datum: 1st Jan 1979 - 31st Dec 1997 = -0.900 Datum: 1st Jan 1998 - 31st Dec 2002 = -0.978 Datum: 1st Jan 2003 onwards = -0.788 Datum is now LAT so unlikely to change.
Data Authority
Hydrographic Office Maritime Headquarters Private Bag X1 Tokai 7966