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Datums for 9462955, False Pass, Unimak Island AK


Elevations on Station Datum

Station: 9462955, False Pass, Unimak Island, AK
Status: Accepted (Dec 12 2014)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW6.58Mean Higher-High Water
MHW6.28Mean High Water
MTL4.78Mean Tide Level
MSL4.86Mean Sea Level
DTL4.50Mean Diurnal Tide Level
MLW3.28Mean Low Water
MLLW2.42Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT4.16Great Diurnal Range
MN3.00Mean Range of Tide
DHQ0.29Mean Diurnal High Water Inequality
DLQ0.86Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich 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
HAT8.39Highest Astronomical Tide
HAT Date & Time12/30/1986 22:48HAT Date and Time
LAT0.30Lowest Astronomical Tide
LAT Date & Time07/10/1987 19:06LAT Date and Time
Tidal Datum Analysis Periods
06/01/2014 - 08/31/2014




Products available at 9462955 False Pass, Unimak Island, AK

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services