Datums for 9463888, St George AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9463888, St George, AK
Status: Accepted (Mar 11 2025)
Units: Feet
Control Station: 9464212 Village Cove, St Paul Island, AK
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW3.46Mean Higher-High Water
MHW3.22Mean High Water
MTL2.04Mean Tide Level
MSL2.01Mean Sea Level
DTL1.73Mean Diurnal Tide Level
MLW0.86Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88-0.29North American Vertical Datum of 1988
STND-36.41Station Datum
GT3.45Great Diurnal Range
MN2.36Mean Range of Tide
DHQ0.23Mean Diurnal High Water Inequality
DLQ0.87Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max TideHighest Observed Tide
Max Tide Date & Time Highest Observed Tide Date & Time
Min TideLowest Observed Tide
Min Tide Date & Time Lowest Observed Tide Date & Time
HAT4.41Highest Astronomical Tide
HAT Date & Time11/18/2024 20:00HAT Date and Time
LAT-1.81Lowest Astronomical Tide
LAT Date & Time06/15/2026 22:00LAT Date and Time
Tidal Datum Analysis Periods
06/01/2024 - 08/31/2024




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