Datums for 8764227, LAWMA, Amerada Pass LA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8764227, LAWMA, Amerada Pass, LA
Status: Accepted (Oct 29 2020)
Units: Feet
Control Station: 8770570 Sabine Pass North, TX
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.61Mean Higher-High Water
MHW1.46Mean High Water
MTL0.89Mean Tide Level
MSL0.85Mean Sea Level
DTL0.81Mean Diurnal Tide Level
MLW0.32Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.92North American Vertical Datum of 1988
STND-23.43Station Datum
GT1.61Great Diurnal Range
MN1.14Mean Range of Tide
DHQ0.15Mean Diurnal High Water Inequality
DLQ0.32Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide8.16Highest Observed Tide
Max Tide Date & Time07/13/2019 19:18Highest Observed Tide Date & Time
Min Tide-1.63Lowest Observed Tide
Min Tide Date & Time12/26/2010 00:00Lowest Observed Tide Date & Time
HAT2.27Highest Astronomical Tide
HAT Date & Time06/12/1987 11:48HAT Date and Time
LAT-1.19Lowest Astronomical Tide
LAT Date & Time12/31/1986 15:30LAT Date and Time
Tidal Datum Analysis Periods
06/01/2007 - 05/31/2009
11/01/2009 - 10/31/2012
07/01/2013 - 06/30/2015
03/01/2016 - 02/28/2017
04/01/2017 - 03/31/2019




Products available at 8764227 LAWMA, Amerada Pass, LA