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Current Datum Value: 0.20

Datums for 8724307, CONTENT KEY,GULF OF MEXICO

NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Status: Accepted (Jun 23 2004)
Units: Feet
Control Station: 8724580 Key West, FL
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
MHHW3.47Mean Higher-High Water
MHW3.23Mean High Water
MTL1.84Mean Tide Level
MSL1.85Mean Sea Level
DTL1.74Mean Diurnal Tide Level
MLW0.44Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD882.79North American Vertical Datum of 1988
STND-0.20Station Datum
GT3.47Great Diurnal Range
MN2.79Mean Range of Tide
DHQ0.24Mean Diurnal High Water Inequality
DLQ0.44Mean Diurnal Low Water Inequality
HWI5.54Greenwich High Water Interval (in hours)
LWI12.21Greenwich Low Water Interval (in hours)
Max Tide4.71Highest Observed Tide
Max Tide Date & Time10/25/1971 23:00Highest Observed Tide Date & Time
Min Tide-1.11Lowest Observed Tide
Min Tide Date & Time02/05/1974 06:42Lowest 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 - 02/28/1975
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.

Products available at 8724307 CONTENT KEY,GULF OF MEXICO,

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