Datums for 8737138, Chickasaw Creek AL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8737138, Chickasaw Creek, AL
Status: Accepted (Dec 9 2019)
Units: Feet
Control Station: 8737048 Mobile State Docks, AL
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.72Mean Higher-High Water
MHW1.62Mean High Water
MTL0.87Mean Tide Level
MSL0.86Mean Sea Level
DTL0.86Mean Diurnal Tide Level
MLW0.12Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.36North American Vertical Datum of 1988
STND-24.58Station Datum
GT1.72Great Diurnal Range
MN1.50Mean Range of Tide
DHQ0.10Mean Diurnal High Water Inequality
DLQ0.12Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide6.59Highest Observed Tide
Max Tide Date & Time10/08/2017 09:48Highest Observed Tide Date & Time
Min Tide-2.38Lowest Observed Tide
Min Tide Date & Time01/17/2018 17:06Lowest Observed Tide Date & Time
HAT2.42Highest Astronomical Tide
HAT Date & Time12/31/1986 05:18HAT Date and Time
LAT-0.73Lowest Astronomical Tide
LAT Date & Time12/30/1986 15:48LAT Date and Time
Tidal Datum Analysis Periods
12/01/2011 - 11/30/2017




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