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Current Datum Value: 13.81

Datums for 8631542, SAND SHOAL INLET, COBB ISLAND VA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8631542, SAND SHOAL INLET, COBB ISLAND, VA
Status: Accepted (Apr 17 2003)
Units: Feet
Control Station: 8638610 Sewells Point, VA
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW4.49Mean Higher-High Water
MHW4.16Mean High Water
MTL2.15Mean Tide Level
MSL2.13Mean Sea Level
DTL2.24Mean Diurnal Tide Level
MLW0.16Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-13.81Station Datum
GT4.49Great Diurnal Range
MN4.00Mean Range of Tide
DHQ0.33Mean Diurnal High Water Inequality
DLQ0.16Mean Diurnal Low Water Inequality
HWI0.43Greenwich High Water Interval (in hours)
LWI6.47Greenwich 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
10/01/1978 - 09/30/1981




Products available at 8631542 SAND SHOAL INLET, COBB ISLAND, VA

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