Datums for 8728690, Apalachicola FL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8728690, Apalachicola, FL
Status: Superseded (Apr 17 2003) (Accepted Apr 30 1998)
Units: Feet
Control Station: 8729840 Pensacola, FL
T.M.: 0
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW1.66Mean Higher-High Water
MHW1.52Mean High Water
MTL0.97Mean Tide Level
MSL0.92Mean Sea Level
DTL0.83Mean Diurnal Tide Level
MLW0.41Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-4.14Station Datum
GT1.66Great Diurnal Range
MN1.11Mean Range of Tide
DHQ0.14Mean Diurnal High Water Inequality
DLQ0.41Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide9.48Highest Observed Tide
Max Tide Date & Time10/10/2018 18:12Highest Observed Tide Date & Time
Min Tide-1.69Lowest Observed Tide
Min Tide Date & Time01/18/1981 15:42Lowest Observed Tide Date & Time
HAT2.29Highest Astronomical Tide
HAT Date & Time08/30/2023 19:24HAT Date and Time
LAT-1.15Lowest Astronomical Tide
LAT Date & Time01/10/2005 15:36LAT Date and Time
Tidal Datum Analysis Periods
01/01/1979 - 12/31/1985




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