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Datums for 8659084, Southport NC


Elevations on Station Datum

Station: 8659084, Southport, NC
Status: Accepted (Apr 17 2003)
Units: Feet
T.M.: 75
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW15.40Mean Higher-High Water
MHW15.07Mean High Water
MTL12.95Mean Tide Level
MSL12.99Mean Sea Level
DTL13.04Mean Diurnal Tide Level
MLW10.83Mean Low Water
MLLW10.67Mean Lower-Low Water
NAVD8813.45North American Vertical Datum of 1988
STND0.00Station 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)
Maximum17.55Highest Observed Water Level
Max Date & Time12/02/1986 08:24Highest Observed Water Level Date and Time
Minimum8.64Lowest Observed Water Level
Min Date & Time03/18/1980 14:54Lowest Observed Water Level Date and Time
HAT16.54Highest Astronomical Tide
HAT Date & Time12/23/1999 13:00HAT Date and Time
LAT9.92Lowest 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