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Current Datum Value: 2.90

Datums for 8673381, HALFMOON, COLONELS ISLAND, TIMMONS RIVER GA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8673381, HALFMOON, COLONELS ISLAND, TIMMONS RIVER, GA
Status: Accepted (Feb 25 2004)
Units: Feet
Control Station: 8720030 Fernandina Beach, FL
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW7.95Mean Higher-High Water
MHW7.58Mean High Water
MTL3.91Mean Tide Level
MSL4.39Mean Sea Level
DTL3.98Mean Diurnal Tide Level
MLW0.23Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-2.90Station Datum
GT7.95Great Diurnal Range
MN7.35Mean Range of Tide
DHQ0.37Mean Diurnal High Water Inequality
DLQ0.23Mean Diurnal Low Water Inequality
HWI1.86Greenwich High Water Interval (in hours)
LWI8.05Greenwich 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
05/01/1977 - 05/31/1977




Products available at 8673381 HALFMOON, COLONELS ISLAND, TIMMONS RIVER, GA

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