Datums for 8770559, Round Point TX


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8770559, Round Point, TX
Status: Accepted (Apr 29 2004)
Units: Feet
Control Station: 8770613 Morgans Point, Barbours Cut, TX
T.M.: 90
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.40Mean Higher-High Water
MHW1.31Mean High Water
MTL0.74Mean Tide Level
MSL0.76Mean Sea Level
DTLMean Diurnal Tide Level
MLW0.18Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-1.70Station Datum
GTGreat Diurnal Range
MNMean Range of Tide
DHQMean Diurnal High Water Inequality
DLQMean 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
HAT1.93Highest Astronomical Tide
HAT Date & Time10/01/1987 12:42HAT Date and Time
LAT-0.87Lowest Astronomical Tide
LAT Date & Time01/18/1988 19:30LAT Date and Time
Tidal Datum Analysis Periods
07/01/1993 - 12/31/1998




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