NOTICE: Data for determining a datum at this station was collected using non-standard methodologies and may not meet CO-OPS highest level of accuracy of 2 cm (0.8 in). The estimated error associated with the average six-minute water level observations relative to datum is expected to be within +/- 8 cm (3 in) at 95% confidence. Recognizing that these data can be used for certain applications CO-OPS is making these data available to its users with restraint. Users are cautioned to consider the accuracy of these data before using them for critical navigational or coastal engineering purposes.

Datums for 8771367, Sabine Offshore Light TX

NOTICE OF PROVISIONAL DATUM These datums and any data referred to said datum are PROVISIONAL and subject to revision until they have been thoroughly reviewed and received final approval. Subsequent review based on field inspections and additional measurements may result in revisions to the data and datums. Data users are cautioned to consider the conditional nature of this information before using it for critical decisions such as those that concern physical or public safety. Only after meeting all standards for quality control assurance will the datums be classified as Accepted Datums.
NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8771367, Sabine Offshore Light, TX
Status: Accepted (Mar 15 2022)
Units: Feet
Control Station: 8770822 Texas Point, Sabine Pass, TX
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW2.30Mean Higher-High Water
MHW2.11Mean High Water
MTL1.31Mean Tide Level
MSL1.27Mean Sea Level
DTL1.15Mean Diurnal Tide Level
MLW0.51Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND1.82Station Datum
GT2.30Great Diurnal Range
MN1.61Mean Range of Tide
DHQ0.18Mean Diurnal High Water Inequality
DLQ0.50Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max TideHighest Observed Tide
Max Tide Date & Time Highest Observed Tide Date & Time
Min TideLowest Observed Tide
Min Tide Date & Time Lowest Observed Tide Date & Time
HAT3.14Highest Astronomical Tide
HAT Date & Time10/27/2007 22:54HAT Date and Time
LAT-1.62Lowest Astronomical Tide
LAT Date & Time01/10/2005 14:18LAT Date and Time
Tidal Datum Analysis Periods
11/01/2021 - 01/31/2022


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