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Datums for 9450753, Magnetic Point, Union Bay, Earnest Sound AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9450753, Magnetic Point, Union Bay, Earnest Sound, AK
Status: Accepted (Jul 30 2009)
Units: Feet
Control Station: 9450460 Ketchikan, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW16.04Mean Higher-High Water
MHW15.15Mean High Water
MTL8.36Mean Tide Level
MSL8.33Mean Sea Level
DTL8.02Mean Diurnal Tide Level
MLW1.57Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND7.71Station Datum
GT16.04Great Diurnal Range
MN13.59Mean Range of Tide
DHQ0.89Mean Diurnal High Water Inequality
DLQ1.56Mean Diurnal Low Water Inequality
HWI9.50Greenwich High Water Interval (in hours)
LWI3.08Greenwich Low Water Interval (in hours)
Max TideHighest Observed Tide
Max Tide Date & Time Highest Observed Tide Date & Time
Min TideLowest Observed Tide
Min Tide Date & Time Lowest Observed Tide Date & Time
HATHighest Astronomical Tide
HAT Date & Time HAT Date and Time
LATLowest Astronomical Tide
LAT Date & Time LAT Date and Time
Tidal Datum Analysis Periods
05/01/2009 - 05/31/2009




Products available at 9450753 Magnetic Point, Union Bay, Earnest Sound, AK

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