293_Lerwick_United Kingdom of Great Britain and Northern Ireland (the)
DatumValueDescription
Status14-Nov-2022Processing Date
Epoch01-Jan-1983 to 31-Dec-2001Tidal Datum Analysis Period
MHHW6.49Mean Higher-High Water (ft)
MHW6.29Mean High Water (ft)
MTL4.27Mean Tide Level (ft)
MSL4.22Mean Sea Level (ft)
DTL4.22Mean Diurnal Tide Level (ft)
MLW2.24Mean Low Water (ft)
MLLW1.96Mean Lower-Low Water (ft)
STND0.00Station Datum (ft)
GT4.54Great Diurnal Range (ft)
MN4.05Mean Range of Tide (ft)
DHQ0.20Mean Diurnal High Water Inequality (ft)
DLQ0.29Mean Diurnal Low Water Inequality (ft)
HWIUnavailableGreenwich High Water Interval (in hours)
LWIUnavailableGreenwich Low Water Interval (in hours)
Maximum9.73Highest Observed Water Level (ft)
Max Date & Time11-Jan-1993 13Highest Observed Water Level Date and Hour (LST)
Minimum-0.96Lowest Observed Water Level (ft)
Min Date & Time20-Feb-1996 18Lowest Observed Water Level Date and Hour (LST)
HAT8.18Highest Astronomical Tide (ft)
HAT Date & Time27-Sep-1984 00HAT Date and Hour (LST)
LAT0.08Lowest Astronomical Tide (ft)
LAT Date & Time18-Mar-1984 18LAT Date and Hour (LST)
LEVUnavailableSwitch 1 (ft)
LEVBUnavailableSwitch 2 (ft)