401_Apia_Samoa
DatumValueDescription
Status14-Nov-2022Processing Date
Epoch01-Jan-2002 to 31-Dec-2020Tidal Datum Analysis Period
MHHW4.29Mean Higher-High Water (ft)
MHW4.15Mean High Water (ft)
MTL2.83Mean Tide Level (ft)
MSL2.83Mean Sea Level (ft)
DTL2.86Mean Diurnal Tide Level (ft)
MLW1.52Mean Low Water (ft)
MLLW1.43Mean Lower-Low Water (ft)
STND0.00Station Datum (ft)
GT2.87Great Diurnal Range (ft)
MN2.63Mean Range of Tide (ft)
DHQ0.14Mean Diurnal High Water Inequality (ft)
DLQ0.09Mean Diurnal Low Water Inequality (ft)
HWIUnavailableGreenwich High Water Interval (in hours)
LWIUnavailableGreenwich Low Water Interval (in hours)
Maximum6.00Highest Observed Water Level (ft)
Max Date & Time20-Feb-2019 06Highest Observed Water Level Date and Hour (LST)
Minimum-0.85Lowest Observed Water Level (ft)
Min Date & Time27-Mar-1998 10Lowest Observed Water Level Date and Hour (LST)
HAT5.23Highest Astronomical Tide (ft)
HAT Date & Time10-Aug-2014 16HAT Date and Hour (LST)
LAT0.51Lowest Astronomical Tide (ft)
LAT Date & Time31-Jan-2014 12LAT Date and Hour (LST)
LEVUnavailableSwitch 1 (ft)
LEVBUnavailableSwitch 2 (ft)