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Datums for 9454949, Whittier AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9454949, Whittier, AK
Status: Accepted (Sep 8 2008)
Units: Feet
Control Station: 9454240 Valdez, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW12.19Mean Higher-High Water
MHW11.27Mean High Water
MTL6.38Mean Tide Level
MSL6.52Mean Sea Level
DTL6.09Mean Diurnal Tide Level
MLW1.49Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD881.05North American Vertical Datum of 1988
STND0.13Station Datum
GT12.19Great Diurnal Range
MN9.78Mean Range of Tide
DHQ0.92Mean Diurnal High Water Inequality
DLQ1.49Mean Diurnal Low Water Inequality
HWI10.06Greenwich High Water Interval (in hours)
LWI3.75Greenwich 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
HAT15.83Highest Astronomical Tide
HAT Date & Time11/13/1985 22:06HAT Date and Time
LAT-3.92Lowest Astronomical Tide
LAT Date & Time06/14/1995 17:00LAT Date and Time
Tidal Datum Analysis Periods
04/01/2007 - 01/31/2008




Products available at 9454949 Whittier, AK

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