Datums for 9455204, UPPER NORTHWESTERN FIORD


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9455204, UPPER NORTHWESTERN FIORD
Status: Superseded (Apr 17 2003) (Accepted Jun 15 2001)
Units: Feet
Control Station: 9455090 Seward, AK
T.M.: 135
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW10.79Mean Higher-High Water
MHW9.90Mean High Water
MTL5.62Mean Tide Level
MSL5.66Mean Sea Level
DTL5.40Mean Diurnal Tide Level
MLW1.33Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-5.01Station Datum
GT10.79Great Diurnal Range
MN8.57Mean Range of Tide
DHQ0.89Mean Diurnal High Water Inequality
DLQ1.34Mean Diurnal Low Water Inequality
HWI10.10Greenwich High Water Interval (in hours)
LWI3.90Greenwich 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
HAT14.31Highest Astronomical Tide
HAT Date & Time11/24/2003 22:00HAT Date and Time
LAT-3.65Lowest Astronomical Tide
LAT Date & Time05/27/2021 17:06LAT Date and Time
Tidal Datum Analysis Periods
08/01/2000 - 08/31/2000




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