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Current Datum Value: 4.20

Datums for 8775270, PORT ARANSAS, H. CALDWELL PIER TX


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8775270, PORT ARANSAS, H. CALDWELL PIER, TX
Status: Accepted (Apr 17 2003)
Units: Feet
Control Station: 8779770 Port Isabel, TX
T.M.: 90
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.63Mean Higher-High Water
MHW1.52Mean High Water
MTL0.87Mean Tide Level
MSL0.92Mean Sea Level
DTL0.82Mean Diurnal Tide Level
MLW0.22Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.52North American Vertical Datum of 1988
STND-4.20Station Datum
GT1.64Great Diurnal Range
MN1.30Mean Range of Tide
DHQ0.11Mean Diurnal High Water Inequality
DLQ0.23Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max TideHighest Observed Tide
Max Tide Date & Time Highest Observed Tide Date & Time
Min TideLowest Observed Tide
Min Tide Date & Time Lowest Observed Tide Date & Time
HAT3.05Highest Astronomical Tide
HAT Date & Time10/18/1989 01:36HAT Date and Time
LAT-1.63Lowest Astronomical Tide
LAT Date & Time01/19/1988 14:36LAT Date and Time
Tidal Datum Analysis Periods
03/01/1980 - 07/31/1980
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8775270 PORT ARANSAS, H. CALDWELL PIER, TX

Revised: 08/08/2018
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