187_East London_South Africa
DatumValueDescription
Status14-Nov-2022Processing Date
Epoch01-Jan-1983 to 31-Dec-2001Tidal Datum Analysis Period
MHHW5.26Mean Higher-High Water (ft)
MHW5.07Mean High Water (ft)
MTL3.28Mean Tide Level (ft)
MSL3.28Mean Sea Level (ft)
DTL3.30Mean Diurnal Tide Level (ft)
MLW1.49Mean Low Water (ft)
MLLW1.34Mean Lower-Low Water (ft)
STND0.00Station Datum (ft)
GT3.92Great Diurnal Range (ft)
MN3.58Mean Range of Tide (ft)
DHQ0.19Mean Diurnal High Water Inequality (ft)
DLQ0.15Mean Diurnal Low Water Inequality (ft)
HWIUnavailableGreenwich High Water Interval (in hours)
LWIUnavailableGreenwich Low Water Interval (in hours)
Maximum8.40Highest Observed Water Level (ft)
Max Date & Time18-Oct-2001 13Highest Observed Water Level Date and Hour (LST)
Minimum-1.08Lowest Observed Water Level (ft)
Min Date & Time17-Feb-1976 21Lowest Observed Water Level Date and Hour (LST)
HAT6.87Highest Astronomical Tide (ft)
HAT Date & Time09-Mar-1989 03HAT Date and Hour (LST)
LAT0.00Lowest Astronomical Tide (ft)
LAT Date & Time17-Sep-1993 07LAT Date and Hour (LST)
LEVUnavailableSwitch 1 (ft)
LEVBUnavailableSwitch 2 (ft)