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Datums for 8639428, SANDBRIDGE VA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8639428, SANDBRIDGE, VA
Status: Accepted (Aug 1 2003)
Units: Feet
Control Station: 8638610 Sewells Point, VA
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW3.83Mean Higher-High Water
MHW3.53Mean High Water
MTL1.85Mean Tide Level
MSL1.87Mean Sea Level
DTL1.92Mean Diurnal Tide Level
MLW0.17Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-2.99Station Datum
GT3.83Great Diurnal Range
MN3.35Mean Range of Tide
DHQ0.31Mean Diurnal High Water Inequality
DLQ0.17Mean Diurnal Low Water Inequality
HWI12.35Greenwich High Water Interval (in hours)
LWI6.18Greenwich 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
07/01/1981 - 10/31/1981




Products available at 8639428 SANDBRIDGE, VA

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