Datums for 8720587, St. Augustine Beach FL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8720587, St. Augustine Beach, FL
Status: Superseded (Apr 17 2003) (Accepted Jun 13 2001)
Units: Feet
Control Station: 8720220 Mayport (Ferry Depot), FL
T.M.: 75
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW5.21Mean Higher-High Water
MHW4.85Mean High Water
MTL2.51Mean Tide Level
MSL2.48Mean Sea Level
DTL2.60Mean Diurnal Tide Level
MLW0.18Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-2.76Station Datum
GT5.21Great Diurnal Range
MN4.67Mean Range of Tide
DHQ0.36Mean Diurnal High Water Inequality
DLQ0.17Mean Diurnal Low Water Inequality
HWI0.50Greenwich High Water Interval (in hours)
LWI6.72Greenwich Low Water Interval (in hours)
Max Tide7.95Highest Observed Tide
Max Tide Date & Time09/24/1992 23:06Highest Observed Tide Date & Time
Min Tide-3.00Lowest Observed Tide
Min Tide Date & Time03/13/1993 23:12Lowest Observed Tide Date & Time
HAT6.95Highest Astronomical Tide
HAT Date & Time10/27/2011 12:48HAT Date and Time
LAT-1.29Lowest Astronomical Tide
LAT Date & Time02/20/2019 07:00LAT Date and Time
Tidal Datum Analysis Periods
06/01/1992 - 08/31/1995
10/01/1995 - 12/31/1996
02/01/1997 - 07/31/1997
10/01/1997 - 09/30/1999




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