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Datums for 9451600, Sitka AK


Elevations on Station Datum

Station: 9451600, Sitka, AK
Status: Accepted (Sep 30 2011)
Units: Feet
T.M.: 0
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW14.46Mean Higher-High Water
MHW13.68Mean High Water
MTL9.83Mean Tide Level
MSL9.81Mean Sea Level
DTL9.49Mean Diurnal Tide Level
MLW5.98Mean Low Water
MLLW4.52Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT9.94Great Diurnal Range
MN7.70Mean Range of Tide
DHQ0.78Mean Diurnal High Water Inequality
DLQ1.46Mean Diurnal Low Water Inequality
HWI9.52Greenwich High Water Interval (in hours)
LWI3.25Greenwich Low Water Interval (in hours)
Maximum19.40Highest Observed Water Level
Max Date & Time11/02/1948 22:48Highest Observed Water Level Date and Time
Minimum0.42Lowest Observed Water Level
Min Date & Time12/14/2008 04:24Lowest Observed Water Level Date and Time
HAT17.30Highest Astronomical Tide
HAT Date & Time12/23/1999 21:36HAT Date and Time
LAT1.26Lowest Astronomical Tide
LAT Date & Time06/23/1986 16:36LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 12/31/2001




Products available at 9451600 Sitka, AK

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