Datums for 8761724, Grand Isle LA


NOTICE: This stations datums are computed using the 5-year Modified Procedure

Elevations on Mean Lower Low Water

Station: 8761724, Grand Isle, LA
Status: Accepted (Feb 1 2018)
Units: Feet
Control Station:
T.M.: 0
Epoch: 2012-2016
Datum: MLLW
DatumValueDescription
MHHW1.06Mean Higher-High Water
MHW1.06Mean High Water
MTL0.53Mean Tide Level
MSL0.54Mean Sea Level
DTL0.53Mean Diurnal Tide Level
MLW0.01Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-6.35Station Datum
GT1.06Great Diurnal Range
MN1.04Mean Range of Tide
DHQ0.01Mean Diurnal High Water Inequality
DLQ0.01Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide5.23Highest Observed Tide
Max Tide Date & Time08/29/2012 14:06Highest Observed Tide Date & Time
Min Tide-3.35Lowest Observed Tide
Min Tide Date & Time01/13/1964 00:00Lowest Observed Tide Date & Time
HAT1.80Highest Astronomical Tide
HAT Date & Time10/18/1989 04:54HAT Date and Time
LAT-0.95Lowest Astronomical Tide
LAT Date & Time01/27/1987 12:18LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 12/31/2001
01/01/2012 - 03/31/2012
05/01/2012 - 12/31/2016




Products available at 8761724 Grand Isle, LA