Datums for 8771450, Galveston Pier 21 TX

NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8771450, Galveston Pier 21, TX
Status: Accepted (Dec 3 2019)
Units: Feet
Control Station:
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
MHHW1.41Mean Higher-High Water
MHW1.32Mean High Water
MTL0.82Mean Tide Level
MSL0.83Mean Sea Level
DTL0.71Mean Diurnal Tide Level
MLW0.30Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.31North American Vertical Datum of 1988
STND-4.38Station Datum
GT1.41Great Diurnal Range
MN1.02Mean Range of Tide
DHQ0.09Mean Diurnal High Water Inequality
DLQ0.30Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide13.52Highest Observed Tide
Max Tide Date & Time09/08/1900 00:00Highest Observed Tide Date & Time
Min Tide-6.28Lowest Observed Tide
Min Tide Date & Time01/11/1908 04:00Lowest Observed Tide Date & Time
HAT2.15Highest Astronomical Tide
HAT Date & Time10/28/2007 00:42HAT Date and Time
LAT-1.22Lowest Astronomical Tide
LAT Date & Time01/10/2005 15:36LAT Date and Time
Tidal Datum Analysis Periods
01/01/1997 - 12/31/2001

Products available at 8771450 Galveston Pier 21, TX