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Datums for 8635750, Lewisetta VA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8635750, Lewisetta, VA
Status: Accepted (Oct 7 2011)
Units: Feet
Control Station:
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.51Mean Higher-High Water
MHW1.37Mean High Water
MTL0.74Mean Tide Level
MSL0.76Mean Sea Level
DTL0.75Mean Diurnal Tide Level
MLW0.12Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.83North American Vertical Datum of 1988
STND-4.77Station Datum
GT1.50Great Diurnal Range
MN1.24Mean Range of Tide
DHQ0.14Mean Diurnal High Water Inequality
DLQ0.12Mean Diurnal Low Water Inequality
HWI6.17Greenwich High Water Interval (in hours)
LWI0.10Greenwich Low Water Interval (in hours)
Max Tide5.65Highest Observed Tide
Max Tide Date & Time09/01/2006 23:06Highest Observed Tide Date & Time
Min Tide-2.85Lowest Observed Tide
Min Tide Date & Time04/05/1975 08:36Lowest Observed Tide Date & Time
HAT1.95Highest Astronomical Tide
HAT Date & Time09/17/1993 18:54HAT Date and Time
LAT-0.48Lowest Astronomical Tide
LAT Date & Time01/21/1996 12:42LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 12/31/2001




Products available at 8635750 Lewisetta, VA

Revised: 10/15/2013
NOAA / National Ocean Service
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