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Datums for 8720226, Southbank Riverwalk, St Johns River FL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8720226, Southbank Riverwalk, St Johns River, FL
Status: Accepted (Nov 8 2017)
Units: Feet
Control Station: 8720218 Mayport (Bar Pilots Dock), FL
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.94Mean Higher-High Water
MHW1.88Mean High Water
MTL0.99Mean Tide Level
MSL1.06Mean Sea Level
DTL0.97Mean Diurnal Tide Level
MLW0.10Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD881.30North American Vertical Datum of 1988
STND1.31Station Datum
GT1.95Great Diurnal Range
MN1.79Mean Range of Tide
DHQ0.07Mean Diurnal High Water Inequality
DLQ0.09Mean Diurnal Low Water Inequality
HWI2.84Greenwich High Water Interval (in hours)
LWI9.19Greenwich Low Water Interval (in hours)
Max Tide6.84Highest Observed Tide
Max Tide Date & Time09/11/2017 16:54Highest Observed Tide Date & Time
Min Tide-1.78Lowest Observed Tide
Min Tide Date & Time04/14/2004 17:36Lowest Observed Tide Date & Time
HAT2.23Highest Astronomical Tide
HAT Date & Time04/17/1988 03:30HAT Date and Time
LAT-0.29Lowest Astronomical Tide
LAT Date & Time11/14/1997 08:24LAT Date and Time
Tidal Datum Analysis Periods
04/01/2002 - 03/31/2005
05/01/2014 - 12/31/2014
02/01/2015 - 12/31/2016




Products available at 8720226 Southbank Riverwalk, St Johns River, FL

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