Datums for 8770520, Rainbow Bridge TX


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8770520, Rainbow Bridge, TX
Status: Accepted (Apr 9 2020)
Units: Feet
Control Station: 8770570 Sabine Pass North, TX
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW0.98Mean Higher-High Water
MHW0.93Mean High Water
MTL0.53Mean Tide Level
MSL0.55Mean Sea Level
DTL0.49Mean Diurnal Tide Level
MLW0.12Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.42North American Vertical Datum of 1988
STND-3.84Station Datum
GT0.98Great Diurnal Range
MN0.81Mean Range of Tide
DHQ0.05Mean Diurnal High Water Inequality
DLQ0.12Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide3.95Highest Observed Tide
Max Tide Date & Time08/30/2017 08:12Highest Observed Tide Date & Time
Min Tide-2.53Lowest Observed Tide
Min Tide Date & Time01/19/1996 16:12Lowest Observed Tide Date & Time
HAT1.39Highest Astronomical Tide
HAT Date & Time10/10/1986 10:12HAT Date and Time
LAT-0.86Lowest Astronomical Tide
LAT Date & Time01/18/1988 18:42LAT Date and Time
Tidal Datum Analysis Periods
10/01/2012 - 09/30/2013
09/01/2015 - 08/31/2017
10/01/2017 - 09/30/2018




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