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Datums for 9453220, Yakutat, Yakutat Bay AK


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

Elevations on Mean Lower Low Water

Station: 9453220, Yakutat, Yakutat Bay, AK
Status: Accepted (Feb 6 2018)
Units: Feet
Control Station:
T.M.: 135
Epoch: 2012-2016
Datum: MLLW
DatumValueDescription
MHHW10.08Mean Higher-High Water
MHW9.21Mean High Water
MTL5.31Mean Tide Level
MSL5.30Mean Sea Level
DTL5.09Mean Diurnal Tide Level
MLW1.40Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.59North American Vertical Datum of 1988
STND-1.19Station Datum
GT10.07Great Diurnal Range
MN7.82Mean Range of Tide
DHQ0.86Mean Diurnal High Water Inequality
DLQ1.39Mean Diurnal Low Water Inequality
HWI9.73Greenwich High Water Interval (in hours)
LWI3.46Greenwich Low Water Interval (in hours)
Max Tide17.31Highest Observed Tide
Max Tide Date & Time03/28/1964 10:48Highest Observed Tide Date & Time
Min Tide-4.15Lowest Observed Tide
Min Tide Date & Time12/14/2008 04:36Lowest Observed Tide Date & Time
HAT13.07Highest Astronomical Tide
HAT Date & Time12/03/1990 21:54HAT Date and Time
LAT-3.25Lowest Astronomical Tide
LAT Date & Time05/25/1990 16:30LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 12/31/2001
01/01/2012 - 12/31/2016




Products available at 9453220 Yakutat, Yakutat Bay, AK

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services