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Current Datum Value: 4.60

Datums for 8775237, Port Aransas TX


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8775237, Port Aransas, TX
Status: Accepted (Oct 11 2017)
Units: Feet
Control Station: 8779770 Port Isabel, TX
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.03Mean Higher-High Water
MHW0.99Mean High Water
MTL0.57Mean Tide Level
MSL0.65Mean Sea Level
DTL0.51Mean Diurnal Tide Level
MLW0.14Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.20North American Vertical Datum of 1988
STND-4.60Station Datum
GT1.02Great Diurnal Range
MN0.86Mean Range of Tide
DHQ0.03Mean Diurnal High Water Inequality
DLQ0.14Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide6.24Highest Observed Tide
Max Tide Date & Time08/26/2017 02:18Highest Observed Tide Date & Time
Min Tide-1.33Lowest Observed Tide
Min Tide Date & Time01/01/2003 13:42Lowest Observed Tide Date & Time
HAT1.69Highest Astronomical Tide
HAT Date & Time10/18/1989 01:42HAT Date and Time
LAT-0.89Lowest Astronomical Tide
LAT Date & Time01/09/1986 13:48LAT Date and Time
Tidal Datum Analysis Periods
06/01/2016 - 06/30/2016
09/01/2016 - 04/30/2017




Products available at 8775237 Port Aransas, TX

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services