Datums for 8745557, Gulfport Harbor MS


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8745557, Gulfport Harbor, MS
Status: Accepted (Sep 3 2015)
Units: Feet
Control Station: 8735180 Dauphin Island, AL
T.M.: 90
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.72Mean Higher-High Water
MHW1.63Mean High Water
MTL0.86Mean Tide Level
MSL0.87Mean Sea Level
DTL0.86Mean Diurnal Tide Level
MLW0.09Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.74North American Vertical Datum of 1988
STND-2.37Station Datum
GT1.73Great Diurnal Range
MN1.53Mean Range of Tide
DHQ0.09Mean Diurnal High Water Inequality
DLQ0.10Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide4.68Highest Observed Tide
Max Tide Date & Time11/10/2009 06:54Highest Observed Tide Date & Time
Min Tide-2.76Lowest Observed Tide
Min Tide Date & Time01/14/2006 14:42Lowest Observed Tide Date & Time
HAT2.61Highest Astronomical Tide
HAT Date & Time10/18/1989 05:00HAT Date and Time
LAT-1.23Lowest Astronomical Tide
LAT Date & Time01/28/1987 13:06LAT Date and Time
Tidal Datum Analysis Periods
01/01/2006 - 12/31/2007
01/01/2009 - 12/31/2010




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