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Datums for 8736897, Coast Guard Sector Mobile AL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8736897, Coast Guard Sector Mobile, AL
Status: Accepted (Mar 29 2018)
Units: Feet
Control Station: 8737048 Mobile State Docks, AL
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.70Mean Higher-High Water
MHW1.62Mean High Water
MTL0.86Mean Tide Level
MSL0.85Mean Sea Level
DTL0.85Mean Diurnal Tide Level
MLW0.09Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.54North American Vertical Datum of 1988
STND-28.63Station Datum
GT1.70Great Diurnal Range
MN1.53Mean Range of Tide
DHQ0.08Mean Diurnal High Water Inequality
DLQ0.09Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide7.07Highest Observed Tide
Max Tide Date & Time10/08/2017 08:00Highest Observed Tide Date & Time
Min Tide-2.67Lowest Observed Tide
Min Tide Date & Time01/02/2008 15:00Lowest Observed Tide Date & Time
HAT2.26Highest Astronomical Tide
HAT Date & Time06/22/1986 16:48HAT Date and Time
LAT-0.56Lowest Astronomical Tide
LAT Date & Time12/31/1986 16:30LAT Date and Time
Tidal Datum Analysis Periods
07/01/2008 - 06/30/2012
09/01/2013 - 08/31/2017




Products available at 8736897 Coast Guard Sector Mobile, AL

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