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Datums for 8720001, ST. MARYS RIVER HEADWATERS FL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8720001, ST. MARYS RIVER HEADWATERS, FL
Status: Accepted (Aug 7 2009)
Units: Feet
Control Station: 8720030 Fernandina Beach, FL
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW3.20Mean Higher-High Water
MHW3.04Mean High Water
MTL1.63Mean Tide Level
MSL1.93Mean Sea Level
DTL1.60Mean Diurnal Tide Level
MLW0.22Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD881.06North American Vertical Datum of 1988
STND-3.39Station Datum
GT3.19Great Diurnal Range
MN2.83Mean Range of Tide
DHQ0.15Mean Diurnal High Water Inequality
DLQ0.22Mean Diurnal Low Water Inequality
HWI5.45Greenwich High Water Interval (in hours)
LWI11.40Greenwich 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
12/01/1977 - 04/30/1978
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8720001 ST. MARYS RIVER HEADWATERS, FL

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services