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Current Datum Value: 3.59

Datums for 8675761, Daymark #185, Rockdedundy River Entrance GA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8675761, Daymark #185, Rockdedundy River Entrance, GA
Status: Accepted (Jul 10 2012)
Units: Feet
Control Station: 8670870 Fort Pulaski, GA
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW7.51Mean Higher-High Water
MHW7.14Mean High Water
MTL3.68Mean Tide Level
MSL3.83Mean Sea Level
DTL3.75Mean Diurnal Tide Level
MLW0.21Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-3.59Station Datum
GT7.52Great Diurnal Range
MN6.93Mean Range of Tide
DHQ0.37Mean Diurnal High Water Inequality
DLQ0.22Mean Diurnal Low Water Inequality
HWI0.94Greenwich High Water Interval (in hours)
LWI7.34Greenwich 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
HAT9.74Highest Astronomical Tide
HAT Date & Time11/04/1994 13:30HAT Date and Time
LAT-1.60Lowest Astronomical Tide
LAT Date & Time02/09/1997 21:06LAT Date and Time
Tidal Datum Analysis Periods
02/01/2012 - 04/30/2012




Products available at 8675761 Daymark #185, Rockdedundy River Entrance, GA

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