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Datums for 8735180, Dauphin Island AL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8735180, Dauphin Island, AL
Status: Accepted (Jul 19 2013)
Units: Feet
Control Station: 8729840 Pensacola, FL
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.20Mean Higher-High Water
MHW1.18Mean High Water
MTL0.59Mean Tide Level
MSL0.56Mean Sea Level
DTL0.60Mean Diurnal Tide Level
MLW0.01Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.50North American Vertical Datum of 1988
STND-2.88Station Datum
GT1.20Great Diurnal Range
MN1.17Mean Range of Tide
DHQ0.02Mean Diurnal High Water Inequality
DLQ0.01Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide7.14Highest Observed Tide
Max Tide Date & Time09/16/2004 04:06Highest Observed Tide Date & Time
Min Tide-2.08Lowest Observed Tide
Min Tide Date & Time01/19/1977 06:00Lowest Observed Tide Date & Time
HAT2.03Highest Astronomical Tide
HAT Date & Time10/18/1989 05:24HAT Date and Time
LAT-1.05Lowest Astronomical Tide
LAT Date & Time01/18/1988 14:54LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 12/31/1997




Products available at 8735180 Dauphin Island, AL

Revised: 08/08/2018
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