Datums for 8779749, SPI Brazos Santiago TX


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8779749, SPI Brazos Santiago, TX
Status: Accepted (Apr 23 2020)
Units: Feet
Control Station: 8779770 Port Isabel, TX
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.47Mean Higher-High Water
MHW1.40Mean High Water
MTL0.79Mean Tide Level
MSL0.87Mean Sea Level
DTL0.73Mean Diurnal Tide Level
MLW0.17Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD881.18North American Vertical Datum of 1988
STND-24.26Station Datum
GT1.46Great Diurnal Range
MN1.23Mean Range of Tide
DHQ0.06Mean Diurnal High Water Inequality
DLQ0.17Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide3.60Highest Observed Tide
Max Tide Date & Time10/07/2017 23:48Highest Observed Tide Date & Time
Min Tide-0.98Lowest Observed Tide
Min Tide Date & Time12/22/2018 13:30Lowest Observed Tide Date & Time
HAT2.28Highest Astronomical Tide
HAT Date & Time10/19/1989 04:00HAT Date and Time
LAT-1.00Lowest Astronomical Tide
LAT Date & Time12/31/1986 14:36LAT Date and Time
Tidal Datum Analysis Periods
01/01/2017 - 12/31/2018




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