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Current Datum Value: 1.37

Datums for 8724438, SHARK KEY


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8724438, SHARK KEY
Status: Accepted (Sep 13 2005)
Units: Feet
Control Station: 8724580 Key West, FL
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.00Mean Higher-High Water
MHW0.78Mean High Water
MTL0.44Mean Tide Level
MSL0.50Mean Sea Level
DTL0.50Mean Diurnal Tide Level
MLW0.10Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-1.37Station Datum
GT1.01Great Diurnal Range
MN0.68Mean Range of Tide
DHQ0.22Mean Diurnal High Water Inequality
DLQ0.10Mean Diurnal Low Water Inequality
HWI2.95Greenwich High Water Interval (in hours)
LWI10.14Greenwich 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
03/01/1974 - 05/31/1974
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8724438 SHARK KEY,

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