Datums for 8773037, Seadrift TX


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8773037, Seadrift, TX
Status: Accepted (Dec 22 2017)
Units: Feet
Control Station: 8774770 Rockport, TX
T.M.: 0
Epoch: 2002-2006
Datum: MLLW
DatumValueDescription
MHHW0.38Mean Higher-High Water
MHW0.37Mean High Water
MTL0.19Mean Tide Level
MSL0.20Mean Sea Level
DTL0.19Mean Diurnal Tide Level
MLW0.01Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88-0.88North American Vertical Datum of 1988
STND-1.22Station Datum
GT0.38Great Diurnal Range
MN0.36Mean Range of Tide
DHQ0.01Mean Diurnal High Water Inequality
DLQ0.01Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide5.98Highest Observed Tide
Max Tide Date & Time08/26/2017 11:24Highest Observed Tide Date & Time
Min Tide-1.63Lowest Observed Tide
Min Tide Date & Time01/16/2018 16:18Lowest Observed Tide Date & Time
HAT0.47Highest Astronomical Tide
HAT Date & Time07/01/1988 02:42HAT Date and Time
LAT-0.04Lowest Astronomical Tide
LAT Date & Time07/28/1988 12:30LAT Date and Time
Tidal Datum Analysis Periods
10/01/2016 - 01/31/2017
03/01/2017 - 06/30/2017




Products available at 8773037 Seadrift, TX