Datums for 8637689, Yorktown USCG Training Center VA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8637689, Yorktown USCG Training Center, VA
Status: Accepted (Jul 27 2017)
Units: Feet
Control Station: 8638610 Sewells Point, VA
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW2.58Mean Higher-High Water
MHW2.38Mean High Water
MTL1.25Mean Tide Level
MSL1.24Mean Sea Level
DTL1.29Mean Diurnal Tide Level
MLW0.12Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD881.49North American Vertical Datum of 1988
STND-5.20Station Datum
GT2.58Great Diurnal Range
MN2.27Mean Range of Tide
DHQ0.19Mean Diurnal High Water Inequality
DLQ0.12Mean Diurnal Low Water Inequality
HWI1.71Greenwich High Water Interval (in hours)
LWI8.05Greenwich Low Water Interval (in hours)
Max Tide6.86Highest Observed Tide
Max Tide Date & Time11/12/2009 23:12Highest Observed Tide Date & Time
Min Tide-1.90Lowest Observed Tide
Min Tide Date & Time02/17/2007 20:18Lowest Observed Tide Date & Time
HAT3.52Highest Astronomical Tide
HAT Date & Time10/16/1993 14:18HAT Date and Time
LAT-0.80Lowest Astronomical Tide
LAT Date & Time02/08/1993 09:00LAT Date and Time
Tidal Datum Analysis Periods
07/01/2004 - 06/30/2016




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