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Datums for 8720496, GREEN COVE SPRINGS, ST. JOHNS R. FL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8720496, GREEN COVE SPRINGS, ST. JOHNS R., FL
Status: Accepted (Oct 31 2003)
Units: Feet
Control Station: 8720220 Mayport (Ferry Depot), FL
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW0.90Mean Higher-High Water
MHW0.83Mean High Water
MTL0.44Mean Tide Level
MSL0.43Mean Sea Level
DTL0.45Mean Diurnal Tide Level
MLW0.04Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.41North American Vertical Datum of 1988
STND-2.34Station Datum
GT0.90Great Diurnal Range
MN0.78Mean Range of Tide
DHQ0.07Mean Diurnal High Water Inequality
DLQ0.04Mean Diurnal Low Water Inequality
HWI6.08Greenwich High Water Interval (in hours)
LWI0.49Greenwich Low Water Interval (in hours)
Max Tide2.44Highest Observed Tide
Max Tide Date & Time10/07/1974 00:00Highest Observed Tide Date & Time
Min Tide-2.04Lowest Observed Tide
Min Tide Date & Time04/01/1979 00:00Lowest 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
04/01/1978 - 03/31/1979
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8720496 GREEN COVE SPRINGS, ST. JOHNS R., FL

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