Datums for 8774513, Copano Bay


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8774513, Copano Bay
Status: Accepted (Jul 27 2018)
Units: Feet
Control Station: 8774770 Rockport
T.M.: 0
Epoch: 2002-2006
Datum: MLLW
DatumValueDescription
MHHW0.39Mean Higher-High Water
MHW0.39Mean High Water
MTL0.19Mean Tide Level
MSL0.21Mean Sea Level
DTL0.20Mean Diurnal Tide Level
MLW0.00Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88-0.63North American Vertical Datum of 1988
STND-5.21Station Datum
GT0.39Great Diurnal Range
MN0.38Mean Range of Tide
DHQ0.00Mean Diurnal High Water Inequality
DLQ0.00Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide4.40Highest Observed Tide
Max Tide Date & Time08/26/2017 06:30Highest Observed Tide Date & Time
Min Tide-3.88Lowest Observed Tide
Min Tide Date & Time08/26/2017 03:06Lowest Observed Tide Date & Time
HAT0.82Highest Astronomical Tide
HAT Date & Time05/07/1989 22:18HAT Date and Time
LAT-0.59Lowest Astronomical Tide
LAT Date & Time01/18/1985 17:12LAT Date and Time
Tidal Datum Analysis Periods
08/01/2016 - 07/31/2017




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