Datums for 9454672, COLLEGE FIORD


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9454672, COLLEGE FIORD
Status: Accepted (Dec 9 2022)
Units: Feet
Control Station: 9454050 Cordova, AK
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW12.55Mean Higher-High Water
MHW11.60Mean High Water
MTL6.56Mean Tide Level
MSL6.73Mean Sea Level
DTL6.27Mean Diurnal Tide Level
MLW1.52Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD882.32North American Vertical Datum of 1988
STND1.70Station Datum
GT12.56Great Diurnal Range
MN10.09Mean Range of Tide
DHQ0.94Mean Diurnal High Water Inequality
DLQ1.53Mean Diurnal Low Water Inequality
HWI10.08Greenwich High Water Interval (in hours)
LWI3.78Greenwich 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
HAT16.22Highest Astronomical Tide
HAT Date & Time11/24/2003 21:54HAT Date and Time
LAT-3.86Lowest Astronomical Tide
LAT Date & Time05/27/2021 16:48LAT Date and Time
Tidal Datum Analysis Periods
05/01/2022 - 07/31/2022




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