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Datums for 8721138, HALIFAX RIVER, PONCE INLET FL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8721138, HALIFAX RIVER, PONCE INLET, FL
Status: Accepted (Apr 17 2003)
Units: Feet
Control Station: 8720030 Fernandina Beach, FL
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW3.17Mean Higher-High Water
MHW2.90Mean High Water
MTL1.52Mean Tide Level
MSL1.51Mean Sea Level
DTL1.59Mean Diurnal Tide Level
MLW0.15Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD882.25North American Vertical Datum of 1988
STND-2.94Station Datum
GT3.17Great Diurnal Range
MN2.75Mean Range of Tide
DHQ0.27Mean Diurnal High Water Inequality
DLQ0.14Mean Diurnal Low Water Inequality
HWI1.23Greenwich High Water Interval (in hours)
LWI7.52Greenwich Low Water Interval (in hours)
Max Tide5.20Highest Observed Tide
Max Tide Date & Time10/06/1974 11:30Highest Observed Tide Date & Time
Min Tide-1.64Lowest Observed Tide
Min Tide Date & Time02/26/1975 01:54Lowest 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
02/01/1974 - 01/31/1975
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8721138 HALIFAX RIVER, PONCE INLET, FL

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