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Current Datum Value: 21.41

Datums for 8571773, Vienna MD


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8571773, Vienna, MD
Status: Accepted (Jun 28 2010)
Units: Feet
Control Station: 8571892 Cambridge, MD
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW2.46Mean Higher-High Water
MHW2.31Mean High Water
MTL1.25Mean Tide Level
MSL1.34Mean Sea Level
DTL1.23Mean Diurnal Tide Level
MLW0.18Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-21.41Station Datum
GT2.46Great Diurnal Range
MN2.12Mean Range of Tide
DHQ0.16Mean Diurnal High Water Inequality
DLQ0.18Mean Diurnal Low Water Inequality
HWI8.96Greenwich High Water Interval (in hours)
LWI2.97Greenwich Low Water Interval (in hours)
Max Tide4.31Highest Observed Tide
Max Tide Date & Time05/12/2008 14:00Highest Observed Tide Date & Time
Min Tide-2.02Lowest Observed Tide
Min Tide Date & Time01/03/2008 10:42Lowest Observed Tide Date & Time
HAT2.73Highest Astronomical Tide
HAT Date & Time12/23/1999 21:42HAT Date and Time
LAT-0.08Lowest Astronomical Tide
LAT Date & Time12/03/1998 14:30LAT Date and Time
Tidal Datum Analysis Periods
09/01/2005 - 08/31/2009
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8571773 Vienna, MD

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