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Datums for 9469833, Goodhope Bay AK


NOTICE OF PROVISIONAL DATUM These datums and any data referred to said datum are PROVISIONAL and subject to revision until they have been thoroughly reviewed and received final approval. Subsequent review based on field inspections and additional measurements may result in revisions to the data and datums. Data users are cautioned to consider the conditional nature of this information before using it for critical decisions such as those that concern physical or public safety. Only after meeting all standards for quality control assurance will the datums be classified as Accepted Datums.
NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9469833, Goodhope Bay, AK
Status: Accepted (Jan 12 2016)
Units: Feet
Control Station: 9491094 Red Dog Dock, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.69Mean Higher-High Water
MHW1.56Mean High Water
MTL0.89Mean Tide Level
MSL0.88Mean Sea Level
DTL0.84Mean Diurnal Tide Level
MLW0.20Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-37.07Station Datum
GT1.69Great Diurnal Range
MN1.36Mean Range of Tide
DHQ0.12Mean Diurnal High Water Inequality
DLQ0.20Mean Diurnal Low Water Inequality
HWI2.28Greenwich High Water Interval (in hours)
LWI8.80Greenwich 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
HAT2.19Highest Astronomical Tide
HAT Date & Time11/07/1998 04:06HAT Date and Time
LAT-0.44Lowest Astronomical Tide
LAT Date & Time01/24/1996 11:24LAT Date and Time
Tidal Datum Analysis Periods
07/01/2015 - 08/31/2015




Products available at 9469833 Goodhope Bay, AK

Revised: 08/08/2018
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