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 8771050, Renaissance SA-13 Platform

NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8771050, Renaissance SA-13 Platform
Status: Accepted (Mar 30 2021)
Units: Feet
Control Station: 8770822 Texas Point, Sabine Pass, TX
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW2.18Mean Higher-High Water
MHW2.03Mean High Water
MTL1.27Mean Tide Level
MSL1.25Mean Sea Level
DTL1.09Mean Diurnal Tide Level
MLW0.51Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD881.50North American Vertical Datum of 1988
STND60.26Station Datum
GT2.18Great Diurnal Range
MN1.52Mean Range of Tide
DHQ0.16Mean Diurnal High Water Inequality
DLQ0.51Mean 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
HAT2.99Highest Astronomical Tide
HAT Date & Time10/26/2007 21:42HAT Date and Time
LAT-1.63Lowest Astronomical Tide
LAT Date & Time01/10/2005 14:30LAT Date and Time
Tidal Datum Analysis Periods
12/01/2020 - 12/31/2020


Products available at 8771050 Renaissance SA-13 Platform,
  • Meteorological/Other
  • Meteorological Observations
  • Water Temp/Conductivity
  • PORTS®
  • This station is not a member of PORTS®