Datums for 9462941, Cape Chunak, AK 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: 9462941, Cape Chunak, AK, AK
Status: Accepted (Dec 30 2014)
Units: Feet
Control Station: 9463502 Port Moller, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW7.45Mean Higher-High Water
MHW6.88Mean High Water
MTL4.34Mean Tide Level
MSL4.29Mean Sea Level
DTL3.73Mean Diurnal Tide Level
MLW1.80Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-135.59Station Datum
GT7.46Great Diurnal Range
MN5.08Mean Range of Tide
DHQ0.57Mean Diurnal High Water Inequality
DLQ1.80Mean Diurnal Low Water Inequality
HWI3.95Greenwich High Water Interval (in hours)
LWI10.47Greenwich 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
HAT9.37Highest Astronomical Tide
HAT Date & Time11/30/2038 20:12HAT Date and Time
LAT-2.84Lowest Astronomical Tide
LAT Date & Time06/04/2008 22:24LAT Date and Time
Tidal Datum Analysis Periods
07/01/2014 - 07/31/2014




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