Datums for 9468841, Upper Golovnin Lagoon


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9468841, Upper Golovnin Lagoon
Status: Accepted (Jan 17 2024)
Units: Feet
Control Station: 9468756 Nome, Norton Sound, AK
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW3.05Mean Higher-High Water
MHW2.96Mean High Water
MTL1.51Mean Tide Level
MSL1.47Mean Sea Level
DTL1.52Mean Diurnal Tide Level
MLW0.05Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88-2.29North American Vertical Datum of 1988
STND-25.17Station Datum
GT3.04Great Diurnal Range
MN2.91Mean Range of Tide
DHQ0.09Mean Diurnal High Water Inequality
DLQ0.05Mean 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
HAT4.53Highest Astronomical Tide
HAT Date & Time07/14/2026 21:06HAT Date and Time
LAT-1.18Lowest Astronomical Tide
LAT Date & Time11/09/2025 22:54LAT Date and Time
Tidal Datum Analysis Periods
07/01/2023 - 09/30/2023




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