Datums for 9455500, Seldovia AK


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

Elevations on Mean Lower Low Water

Station: 9455500, Seldovia, AK
Status: Superseded (Apr 17 2003) (Accepted May 7 2002)
Units: Feet
Control Station:
T.M.: 0
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW17.98Mean Higher-High Water
MHW17.18Mean High Water
MTL9.43Mean Tide Level
MSL9.51Mean Sea Level
DTL8.99Mean Diurnal Tide Level
MLW1.68Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-7.31Station Datum
GT17.98Great Diurnal Range
MN15.50Mean Range of Tide
DHQ0.80Mean Diurnal High Water Inequality
DLQ1.68Mean Diurnal Low Water Inequality
HWI11.27Greenwich High Water Interval (in hours)
LWI4.92Greenwich Low Water Interval (in hours)
Max Tide25.09Highest Observed Tide
Max Tide Date & Time10/15/1966 22:54Highest Observed Tide Date & Time
Min Tide-7.14Lowest Observed Tide
Min Tide Date & Time12/15/2016 05:42Lowest Observed Tide Date & Time
HAT23.27Highest Astronomical Tide
HAT Date & Time11/15/2016 23:30HAT Date and Time
LAT-5.92Lowest Astronomical Tide
LAT Date & Time06/07/2035 18:06LAT Date and Time
Tidal Datum Analysis Periods
01/01/1994 - 12/31/1998




Products available at 9455500 Seldovia, AK