=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 28-AUG-96 :
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.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Hermanus            430/071 RLR(1964) is 8.4m below BM H41G
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 24-Sep-2009 :
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.

