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Datums for 8659084, Southport NC


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8659084, Southport, NC
Status: Accepted (Apr 17 2003)
Units: Feet
Control Station: 8665530 Charleston, Cooper River Entrance, SC
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW4.73Mean Higher-High Water
MHW4.40Mean High Water
MTL2.28Mean Tide Level
MSL2.32Mean Sea Level
DTL2.37Mean Diurnal Tide Level
MLW0.16Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD882.78North American Vertical Datum of 1988
STND-10.67Station Datum
GT4.73Great Diurnal Range
MN4.24Mean Range of Tide
DHQ0.34Mean Diurnal High Water Inequality
DLQ0.15Mean Diurnal Low Water Inequality
HWI0.55Greenwich High Water Interval (in hours)
LWI6.73Greenwich Low Water Interval (in hours)
Max Tide-3.79Highest Observed Tide
Max Tide Date & Time12/02/1986 08:24Highest Observed Tide Date & Time
Min Tide-12.70Lowest Observed Tide
Min Tide Date & Time03/18/1980 14:54Lowest Observed Tide Date & Time
HAT5.87Highest Astronomical Tide
HAT Date & Time12/23/1999 13:00HAT Date and Time
LAT-0.75Lowest Astronomical Tide
LAT Date & Time11/05/1998 06:54LAT Date and Time
Tidal Datum Analysis Periods
01/01/1978 - 12/31/1987
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8659084 Southport, NC

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services