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Current Datum Value: -126.99

Datums for 8631935, Delmarva GPS Buoy VA


Data Quality Data from this station was collected using methodology that does not meet CO-OPS highest level of accuracy (no more than 10 cm, 95% Confidence Interval (CI) referenced to a tidal datum). Recognizing that lower quality data can be used for certain applications CO-OPS is making this data available to its users with restraint. The average six-minute water level observations derived from this system have an accuracy ranging from 10.0 - 30.0 cm, 95% CI on datum. Users are cautioned to consider the accuracy of these data before using them for critical navigational or coastal engineering purposes.
NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8631935, Delmarva GPS Buoy, VA
Status: Accepted (Jul 19 2016)
Units: Feet
Control Station: 8651370 Duck, NC
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW4.03Mean Higher-High Water
MHW3.74Mean High Water
MTL1.92Mean Tide Level
MSL1.94Mean Sea Level
DTL2.01Mean Diurnal Tide Level
MLW0.09Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND126.99Station Datum
GT4.03Great Diurnal Range
MN3.65Mean Range of Tide
DHQ0.29Mean Diurnal High Water Inequality
DLQ0.09Mean Diurnal Low Water Inequality
HWI12.34Greenwich High Water Interval (in hours)
LWI6.23Greenwich 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
10/05/2014 - 10/31/2014




Products available at 8631935 Delmarva GPS Buoy, VA

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