Walvis Bay 427/001 RLR(1964) is 10.7m below BMTrig
Documentation added 1996-08-28
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 2000-06-12
Data for 1993 deleted as clearly anomalous.
Documentation added 2009-09-24
Heights of chart datum relative to land levelling datum LLD(MSL)in South Africa and Namibia: Walvis Bay Datum: 1st Jan 1958 - 31st Dec 1978 = -0.913 Datum: 1st Jan 1979 - 31st Dec 1997 = -0.900 Datum: 1st Jan 1998 - 31st Dec 2002 = -0.966 Datum: 1st Jan 2003 onwards = -0.966 Datum is now LAT so unlikely to change.
Documentation added 2017-03-01
The tide gauge station in Walvis Bay has been out of action for most of 2016 as a consequence there are no monthly means available for 2016.The Namibian authority is in the process of upgrading the system.
Documentation added 2019-10-23
The South African Navy Hydrographic Office (SANHO) are the copyright owners of the Walvis Bay sea level data and must be contacted to request permission to use the data.
Hydrographic Office Maritime Headquarters Private Bag X1 Tokai 7966