NOAA Web Site Link Tides and Currents Home Page Transparent placeholder image

Datums for 8593005, WASHINGTON NAVY YARD,D.C. DC


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8593005, WASHINGTON NAVY YARD,D.C., DC
Status: Accepted (Sep 28 2010)
Units: Feet
Control Station: 8594900 Washington, DC
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW3.21Mean Higher-High Water
MHW2.97Mean High Water
MTL1.56Mean Tide Level
MSL1.56Mean Sea Level
DTL1.60Mean Diurnal Tide Level
MLW0.16Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD881.50North American Vertical Datum of 1988
STND0.59Station Datum
GT3.20Great Diurnal Range
MN2.82Mean Range of Tide
DHQ0.23Mean Diurnal High Water Inequality
DLQ0.15Mean Diurnal Low Water Inequality
HWI0.48Greenwich High Water Interval (in hours)
LWI7.62Greenwich 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
08/01/1995 - 10/31/1995
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8593005 WASHINGTON NAVY YARD,D.C., DC

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services