Datums for 9457728, Uyak AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9457728, Uyak, AK
Status: Superseded (Apr 17 2003) (Accepted Oct 6 2000)
Units: Feet
Control Station: 9457292 Kodiak Island, AK
T.M.: 135
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW13.75Mean Higher-High Water
MHW12.91Mean High Water
MTL7.26Mean Tide Level
MSL7.18Mean Sea Level
DTL6.87Mean Diurnal Tide Level
MLW1.60Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND4.15Station Datum
GT13.74Great Diurnal Range
MN11.30Mean Range of Tide
DHQ0.84Mean Diurnal High Water Inequality
DLQ1.60Mean Diurnal Low Water Inequality
HWI10.99Greenwich High Water Interval (in hours)
LWI4.88Greenwich 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
HAT17.55Highest Astronomical Tide
HAT Date & Time11/15/2016 23:18HAT Date and Time
LAT-4.28Lowest Astronomical Tide
LAT Date & Time05/27/2021 17:54LAT Date and Time
Tidal Datum Analysis Periods
05/14/2000 - 07/20/2000




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