NOAA Web Site Link Tides and Currents Home Page Transparent placeholder image

Datums for 9455500, Seldovia AK


NOTICE: This stations datums are computed using the 5-year Modified Procedure

Elevations on Station Datum

Station: 9455500, Seldovia, AK
Status: Accepted (Feb 6 2018)
Units: Feet
T.M.: 0
Epoch: 2012-2016
Datum: STND
DatumValueDescription
MHHW24.83Mean Higher-High Water
MHW24.01Mean High Water
MTL16.25Mean Tide Level
MSL16.34Mean Sea Level
DTL15.88Mean Diurnal Tide Level
MLW8.48Mean 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
HWI11.18Greenwich High Water Interval (in hours)
LWI4.86Greenwich Low Water Interval (in hours)
Max Tide32.40Highest Observed Tide
Max Tide Date & Time10/15/1966 22:54Highest Observed Tide Date & Time
Min Tide0.17Lowest Observed Tide
Min Tide Date & Time12/15/2016 05:42Lowest Observed Tide Date & Time
HAT29.89Highest Astronomical Tide
HAT Date & Time11/05/1998 23:48HAT Date and Time
LAT0.73Lowest Astronomical Tide
LAT Date & Time05/16/1999 17:54LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 12/31/2001
01/01/2012 - 12/31/2016




Products available at 9455500 Seldovia, AK

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