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 8764314, Eugene Island, North of, Atchafalaya Bay LA

NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8764314, Eugene Island, North of, Atchafalaya Bay, LA
Status: Accepted (Sep 14 2017)
Units: Feet
Control Station: 8770570 Sabine Pass North, TX
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.86Mean Higher-High Water
MHW1.72Mean High Water
MTL1.06Mean Tide Level
MSL1.02Mean Sea Level
DTL0.93Mean Diurnal Tide Level
MLW0.39Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-12.29Station Datum
GT1.86Great Diurnal Range
MN1.33Mean Range of Tide
DHQ0.14Mean Diurnal High Water Inequality
DLQ0.39Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide7.10Highest Observed Tide
Max Tide Date & Time10/10/2020 05:30Highest Observed Tide Date & Time
Min Tide-2.02Lowest Observed Tide
Min Tide Date & Time01/01/2018 20:24Lowest Observed Tide Date & Time
HAT2.56Highest Astronomical Tide
HAT Date & Time10/27/2007 23:00HAT Date and Time
LAT-1.34Lowest Astronomical Tide
LAT Date & Time01/10/2005 13:54LAT Date and Time
Tidal Datum Analysis Periods
04/01/2015 - 03/31/2017


Products available at 8764314 Eugene Island, North of, Atchafalaya Bay, LA