Datums for 8665530, Charleston SC


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8665530, Charleston, SC
Status: Superseded (Apr 17 2003) (Accepted Nov 19 1997)
Units: Feet
Control Station:
T.M.: 0
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW5.80Mean Higher-High Water
MHW5.46Mean High Water
MTL2.83Mean Tide Level
MSL2.95Mean Sea Level
DTL2.90Mean Diurnal Tide Level
MLW0.19Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-2.49Station Datum
GT5.80Great Diurnal Range
MN5.27Mean Range of Tide
DHQ0.34Mean Diurnal High Water Inequality
DLQ0.19Mean Diurnal Low Water Inequality
HWI0.35Greenwich High Water Interval (in hours)
LWI6.57Greenwich Low Water Interval (in hours)
Max Tide12.80Highest Observed Tide
Max Tide Date & Time09/21/1989 23:42Highest Observed Tide Date & Time
Min Tide-3.81Lowest Observed Tide
Min Tide Date & Time03/13/1993 19:24Lowest Observed Tide Date & Time
HAT7.28Highest Astronomical Tide
HAT Date & Time10/27/2011 12:48HAT Date and Time
LAT-1.53Lowest Astronomical Tide
LAT Date & Time02/09/2001 07:24LAT Date and Time
Tidal Datum Analysis Periods
01/01/1960 - 12/31/1978




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