Datums for 8635027, Dahlgren VA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8635027, Dahlgren, VA
Status: Accepted (Mar 11 2020)
Units: Feet
Control Station: 8635750 Lewisetta, VA
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.91Mean Higher-High Water
MHW1.74Mean High Water
MTL0.95Mean Tide Level
MSL0.94Mean Sea Level
DTL0.96Mean Diurnal Tide Level
MLW0.15Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD881.04North American Vertical Datum of 1988
STND-16.17Station Datum
GT1.92Great Diurnal Range
MN1.60Mean Range of Tide
DHQ0.17Mean Diurnal High Water Inequality
DLQ0.15Mean Diurnal Low Water Inequality
HWI7.61Greenwich High Water Interval (in hours)
LWI1.73Greenwich Low Water Interval (in hours)
Max Tide5.02Highest Observed Tide
Max Tide Date & Time09/10/2018 07:30Highest Observed Tide Date & Time
Min Tide-3.20Lowest Observed Tide
Min Tide Date & Time01/05/2018 04:36Lowest Observed Tide Date & Time
HAT2.40Highest Astronomical Tide
HAT Date & Time09/17/1993 20:30HAT Date and Time
LAT-0.50Lowest Astronomical Tide
LAT Date & Time01/21/1996 14:18LAT Date and Time
Tidal Datum Analysis Periods
03/01/2016 - 02/28/2019




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