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Datums for 8655353, Portsmouth NC


NOTICE: All data values are relative to the STND.

Elevations on Standard Datum

Station: 8655353, Portsmouth, NC
Status: Accepted (Jan 29 2013)
Units: Feet
Control Station: 8654467 USCG Station Hatteras, NC
T.M.: 75
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHWMean Higher-High Water
MHWMean High Water
MTLMean Tide Level
MSL30.70Mean Sea Level
DTLMean Diurnal Tide Level
MLWMean Low Water
MLLWMean Lower-Low Water
NAVD88
STND0.00Station Datum
GTGreat Diurnal Range
MNMean Range of Tide
DHQMean Diurnal High Water Inequality
DLQMean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich 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
HATHighest Astronomical Tide
HAT Date & Time HAT Date and Time
LATLowest Astronomical Tide
LAT Date & Time LAT Date and Time
Tidal Datum Analysis Periods
05/01/2012 - 07/31/2012




Products available at 8655353 Portsmouth, NC

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