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Datums for 9455500, Seldovia AK


Elevations on Station Datum

Station: 9455500, Seldovia, AK
Status: Accepted (Apr 29 2014)
Units: Feet
T.M.: 0
Epoch: 2007-2011
Datum: STND
DatumValueDescription
MHHW24.82Mean Higher-High Water
MHW24.01Mean High Water
MTL16.24Mean Tide Level
MSL16.30Mean Sea Level
DTL15.76Mean Diurnal Tide Level
MLW8.47Mean Low Water
MLLW6.78Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT18.04Great Diurnal Range
MN15.53Mean Range of Tide
DHQ0.81Mean Diurnal High Water Inequality
DLQ1.70Mean Diurnal Low Water Inequality
HWI11.20Greenwich High Water Interval (in hours)
LWI4.88Greenwich Low Water Interval (in hours)
Maximum32.40Highest Observed Water Level
Max Date & Time10/15/1966 22:54Highest Observed Water Level Date and Time
Minimum0.33Lowest Observed Water Level
Min Date & Time12/14/2008 06:06Lowest Observed Water Level Date and Time
HAT29.85Highest Astronomical Tide
HAT Date & Time11/05/1998 23:48HAT Date and Time
LAT0.70Lowest Astronomical Tide
LAT Date & Time05/16/1999 17:54LAT Date and Time
Tidal Datum Analysis Periods
01/01/2007 - 09/30/2010
11/01/2010 - 11/30/2010
04/01/2011 - 12/31/2011




Products available at 9455500 Seldovia, AK

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