Datums for 9454673, PORT AUDREY


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9454673, PORT AUDREY
Status: Superseded (Apr 17 2003) (Accepted Feb 10 1999)
Units: Feet
Control Station: 9454050 Cordova, AK
T.M.: 135
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW11.75Mean Higher-High Water
MHW10.83Mean High Water
MTL6.14Mean Tide Level
MSL6.27Mean Sea Level
DTL5.87Mean Diurnal Tide Level
MLW1.45Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND2.39Station Datum
GT11.74Great Diurnal Range
MN9.38Mean Range of Tide
DHQ0.92Mean Diurnal High Water Inequality
DLQ1.45Mean Diurnal Low Water Inequality
HWI10.04Greenwich High Water Interval (in hours)
LWI3.77Greenwich 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
07/22/1998 - 09/15/1998




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