Datums for 8764044, Berwick, Atchafalaya River LA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8764044, Berwick, Atchafalaya River, LA
Status: Accepted (May 12 2020)
Units: Feet
Control Station: 8770570 Sabine Pass North, TX
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW0.53Mean Higher-High Water
MHW0.49Mean High Water
MTL0.27Mean Tide Level
MSL0.29Mean Sea Level
DTL0.27Mean Diurnal Tide Level
MLW0.05Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88-1.65North American Vertical Datum of 1988
STND-19.59Station Datum
GT0.53Great Diurnal Range
MN0.45Mean Range of Tide
DHQ0.04Mean Diurnal High Water Inequality
DLQ0.04Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide7.27Highest Observed Tide
Max Tide Date & Time07/13/2019 21:54Highest Observed Tide Date & Time
Min Tide-2.72Lowest Observed Tide
Min Tide Date & Time08/29/2012 07:42Lowest Observed Tide Date & Time
HAT1.89Highest Astronomical Tide
HAT Date & Time05/07/2008 14:54HAT Date and Time
LAT-0.99Lowest Astronomical Tide
LAT Date & Time09/30/2007 20:18LAT Date and Time
Tidal Datum Analysis Periods
12/01/2003 - 11/30/2004
07/01/2007 - 06/30/2008
11/01/2008 - 10/31/2012
02/01/2013 - 01/31/2019




Products available at 8764044 Berwick, Atchafalaya River, LA