Datums for 8720832, Welaka FL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8720832, Welaka, FL
Status: Accepted (Oct 28 2011)
Units: Feet
Control Station: 8720503 Red Bay Point, St Johns River, FL
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW0.49Mean Higher-High Water
MHW0.47Mean High Water
MTL0.26Mean Tide Level
MSL0.25Mean Sea Level
DTL0.24Mean Diurnal Tide Level
MLW0.04Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88-0.02North American Vertical Datum of 1988
STND-0.01Station Datum
GT0.49Great Diurnal Range
MN0.42Mean Range of Tide
DHQ0.02Mean Diurnal High Water Inequality
DLQ0.04Mean Diurnal Low Water Inequality
HWI8.43Greenwich High Water Interval (in hours)
LWI2.80Greenwich 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
HAT0.54Highest Astronomical Tide
HAT Date & Time11/23/1999 20:18HAT Date and Time
LAT0.01Lowest Astronomical Tide
LAT Date & Time10/25/1995 14:18LAT Date and Time
Tidal Datum Analysis Periods
10/01/2003 - 03/31/2004




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