Datums for 9458716, ANIAKCHAK BAY AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9458716, ANIAKCHAK BAY, AK
Status: Accepted (Mar 31 2026)
Units: Feet
Control Station: 9457804 Alitak, AK
T.M.: 135
Epoch: 2012-2016
Datum: MLLW
DatumValueDescription
MHHW10.09Mean Higher-High Water
MHW9.26Mean High Water
MTL5.39Mean Tide Level
MSL5.30Mean Sea Level
DTL5.04Mean Diurnal Tide Level
MLW1.52Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD882.07North American Vertical Datum of 1988
STND-17.84Station Datum
GT10.09Great Diurnal Range
MN7.73Mean Range of Tide
DHQ0.83Mean Diurnal High Water Inequality
DLQ1.52Mean Diurnal Low Water Inequality
HWI11.11Greenwich High Water Interval (in hours)
LWI5.02Greenwich 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
HATHighest Astronomical Tide
HAT Date & Time HAT Date and Time
LATLowest Astronomical Tide
LAT Date & Time LAT Date and Time
Tidal Datum Analysis Periods
06/01/2025 - 08/31/2025




Products available at 9458716 ANIAKCHAK BAY, AK