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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.

Elevations on Station Datum

Station: 9462941, Cape Chunak, AK, AK
Status: Accepted (Dec 30 2014)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW143.04Mean Higher-High Water
MHW142.47Mean High Water
MTL139.93Mean Tide Level
MSL139.88Mean Sea Level
DTL139.32Mean Diurnal Tide Level
MLW137.39Mean Low Water
MLLW135.59Mean Lower-Low Water
NAVD88
STND0.00Station 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)
MaximumHighest Observed Water Level
Max Date & Time Highest Observed Water Level Date and Time
MinimumLowest Observed Water Level
Min Date & Time Lowest Observed Water Level Date and Time
HAT144.95Highest Astronomical Tide
HAT Date & Time11/16/1985 20:12HAT Date and Time
LAT132.71Lowest Astronomical Tide
LAT Date & Time06/22/1986 22:06LAT Date and Time
Tidal Datum Analysis Periods
07/01/2014 - 07/31/2014




Products available at 9462941 Cape Chunak, AK, AK

Revised: 10/15/2013
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