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Datums for 8724474, DUCK KEY POINT FL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8724474, DUCK KEY POINT, FL
Status: Accepted (Aug 1 2003)
Units: Feet
Control Station: 8724580 Key West, FL
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW2.05Mean Higher-High Water
MHW1.80Mean High Water
MTL1.01Mean Tide Level
MSL0.95Mean Sea Level
DTL1.03Mean Diurnal Tide Level
MLW0.23Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-3.30Station Datum
GT2.05Great Diurnal Range
MN1.57Mean Range of Tide
DHQ0.26Mean Diurnal High Water Inequality
DLQ0.23Mean Diurnal Low Water Inequality
HWI6.21Greenwich High Water Interval (in hours)
LWI0.93Greenwich 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
09/01/1974 - 10/31/1974
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8724474 DUCK KEY POINT, FL

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