Datums for 8779724, Queen Isabella Causeway TX


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8779724, Queen Isabella Causeway, TX
Status: Accepted (Apr 17 2003)
Units: Feet
Control Station: 8779770 Port Isabel, TX
T.M.: 90
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.28Mean Higher-High Water
MHW1.23Mean High Water
MTL0.68Mean Tide Level
MSL0.76Mean Sea Level
DTL0.64Mean Diurnal Tide Level
MLW0.13Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-1.14Station Datum
GT1.28Great Diurnal Range
MN1.11Mean 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 Tide3.61Highest Observed Tide
Max Tide Date & Time09/01/1977 22:06Highest Observed Tide Date & Time
Min Tide-1.49Lowest Observed Tide
Min Tide Date & Time01/19/1977 00:00Lowest Observed Tide Date & Time
HATHighest Astronomical Tide
HAT Date & Time HAT Date and Time
LATLowest Astronomical Tide
LAT Date & Time LAT Date and Time
Tidal Datum Analysis Periods
05/01/1977 - 04/30/1978




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