Datums for 9468333, Unalakleet AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9468333, Unalakleet, AK
Status: Accepted (Aug 7 2017)
Units: Feet
Control Station: 9468756 Nome, Norton Sound, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW3.19Mean Higher-High Water
MHW2.86Mean High Water
MTL1.61Mean Tide Level
MSL1.47Mean Sea Level
DTL1.59Mean Diurnal Tide Level
MLW0.36Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88-2.12North American Vertical Datum of 1988
STND-1.56Station Datum
GT3.19Great Diurnal Range
MN2.50Mean Range of Tide
DHQ0.33Mean Diurnal High Water Inequality
DLQ0.35Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide11.84Highest Observed Tide
Max Tide Date & Time08/03/2019 20:30Highest Observed Tide Date & Time
Min Tide-1.45Lowest Observed Tide
Min Tide Date & Time11/11/2016 03:36Lowest Observed Tide Date & Time
HATHighest Astronomical Tide
HAT Date & Time HAT Date and Time
LATLowest Astronomical Tide
LAT Date & Time LAT Date and Time
Tidal Datum Analysis Periods
08/01/2016 - 01/31/2017




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