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Datums for 9455920, Anchorage AK


Elevations on Station Datum

Station: 9455920, Anchorage, AK
Status: Accepted (Dec 15 2011)
Units: Feet
T.M.: 0
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW35.43Mean Higher-High Water
MHW34.70Mean High Water
MTL21.61Mean Tide Level
MSL22.74Mean Sea Level
DTL20.85Mean Diurnal Tide Level
MLW8.52Mean Low Water
MLLW6.27Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT29.16Great Diurnal Range
MN26.19Mean Range of Tide
DHQ0.73Mean Diurnal High Water Inequality
DLQ2.25Mean Diurnal Low Water Inequality
HWI3.65Greenwich High Water Interval (in hours)
LWI10.41Greenwich Low Water Interval (in hours)
Maximum41.12Highest Observed Water Level
Max Date & Time11/06/2002 04:12Highest Observed Water Level Date and Time
Minimum-0.12Lowest Observed Water Level
Min Date & Time12/25/1999 12:42Lowest Observed Water Level Date and Time
HAT40.93Highest Astronomical Tide
HAT Date & Time10/17/1993 04:12HAT Date and Time
LAT1.73Lowest Astronomical Tide
LAT Date & Time01/21/1996 10:54LAT Date and Time
Tidal Datum Analysis Periods
01/01/1997 - 12/31/2001
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 9455920 Anchorage, AK

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