NOAA Web Site Link Tides and Currents Home Page Transparent placeholder image

Datums for 8651370, Duck NC


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8651370, Duck, NC
Status: Accepted (Sep 26 2011)
Units: Feet
Control Station:
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW3.69Mean Higher-High Water
MHW3.37Mean High Water
MTL1.75Mean Tide Level
MSL1.77Mean Sea Level
DTL1.84Mean Diurnal Tide Level
MLW0.14Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD882.19North American Vertical Datum of 1988
STND-18.58Station Datum
GT3.69Great Diurnal Range
MN3.22Mean Range of Tide
DHQ0.32Mean Diurnal High Water Inequality
DLQ0.14Mean Diurnal Low Water Inequality
HWI12.23Greenwich High Water Interval (in hours)
LWI6.06Greenwich Low Water Interval (in hours)
Max Tide-10.76Highest Observed Tide
Max Tide Date & Time09/18/2003 16:06Highest Observed Tide Date & Time
Min Tide-21.24Lowest Observed Tide
Min Tide Date & Time03/16/1980 17:54Lowest Observed Tide Date & Time
HAT4.94Highest Astronomical Tide
HAT Date & Time10/16/1993 12:24HAT Date and Time
LAT-0.98Lowest Astronomical Tide
LAT Date & Time02/08/1997 06:24LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 12/31/2001
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8651370 Duck, NC

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