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Current Datum Value: 3.14

Datums for 8742221, Horn Island MS


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8742221, Horn Island, MS
Status: Accepted (Aug 22 2005)
Units: Feet
Control Station: 8729840 Pensacola, FL
T.M.: 90
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.60Mean Higher-High Water
MHW1.50Mean High Water
MTL0.81Mean Tide Level
MSL0.81Mean Sea Level
DTL0.80Mean Diurnal Tide Level
MLW0.12Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-3.14Station Datum
GT1.60Great Diurnal Range
MN1.38Mean 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 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
HAT2.46Highest Astronomical Tide
HAT Date & Time12/04/1986 04:24HAT Date and Time
LAT-0.78Lowest Astronomical Tide
LAT Date & Time12/30/1986 13:06LAT Date and Time
Tidal Datum Analysis Periods
02/01/2005 - 03/31/2005
06/01/2005 - 06/30/2005




Products available at 8742221 Horn Island, MS

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services