Datums for 8771341, Galveston Bay Entrance, North Jetty TX


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8771341, Galveston Bay Entrance, North Jetty, TX
Status: Superseded (Apr 17 2003) (Accepted Apr 11 2001)
Units: Feet
Control Station: 8771450 Galveston Pier 21, TX
T.M.: 0
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW1.64Mean Higher-High Water
MHW1.55Mean High Water
MTL0.97Mean Tide Level
MSL0.97Mean Sea Level
DTL0.82Mean Diurnal Tide Level
MLW0.39Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-9.09Station Datum
GT1.64Great Diurnal Range
MN1.16Mean Range of Tide
DHQ0.09Mean Diurnal High Water Inequality
DLQ0.40Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide5.77Highest Observed Tide
Max Tide Date & Time07/15/2003 11:54Highest Observed Tide Date & Time
Min Tide-2.74Lowest Observed Tide
Min Tide Date & Time12/23/2007 13:30Lowest Observed Tide Date & Time
HAT2.48Highest Astronomical Tide
HAT Date & Time10/27/2007 23:54HAT Date and Time
LAT-1.32Lowest Astronomical Tide
LAT Date & Time01/21/2023 14:42LAT Date and Time
Tidal Datum Analysis Periods
03/01/2001 - 03/31/2001




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