Datums for 8773037, Seadrift TX


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8773037, Seadrift, TX
Status: Accepted (Mar 25 2020)
Units: Feet
Control Station: 8775792 Packery Channel, TX
T.M.: 0
Epoch: 2002-2006
Datum: MLLW
DatumValueDescription
MHHW0.35Mean Higher-High Water
MHW0.35Mean High Water
MTL0.18Mean Tide Level
MSL0.19Mean Sea Level
DTL0.17Mean Diurnal Tide Level
MLW0.02Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88-0.99North American Vertical Datum of 1988
STND-1.28Station Datum
GT0.35Great Diurnal Range
MN0.32Mean Range of Tide
DHQ0.00Mean Diurnal High Water Inequality
DLQ0.02Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide5.92Highest Observed Tide
Max Tide Date & Time08/26/2017 11:24Highest Observed Tide Date & Time
Min Tide-1.69Lowest Observed Tide
Min Tide Date & Time01/16/2018 16:18Lowest Observed Tide Date & Time
HAT0.46Highest Astronomical Tide
HAT Date & Time07/01/1988 02:42HAT Date and Time
LAT-0.05Lowest Astronomical Tide
LAT Date & Time07/28/1988 12:30LAT Date and Time
Tidal Datum Analysis Periods
09/01/2017 - 08/31/2018




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