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Datums for 8727235, JOHNS ISLAND, CHASSAHOWITZKA BAY FL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8727235, JOHNS ISLAND, CHASSAHOWITZKA BAY, FL
Status: Accepted (Oct 29 2003)
Units: Feet
Control Station: 8726724 Clearwater Beach, FL
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW2.37Mean Higher-High Water
MHW2.04Mean High Water
MTL1.14Mean Tide Level
MSL1.09Mean Sea Level
DTL1.19Mean Diurnal Tide Level
MLW0.24Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-1.75Station Datum
GT2.37Great Diurnal Range
MN1.79Mean Range of Tide
DHQ0.34Mean Diurnal High Water Inequality
DLQ0.24Mean Diurnal Low Water Inequality
HWI7.42Greenwich High Water Interval (in hours)
LWI2.22Greenwich 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
HAT3.07Highest Astronomical Tide
HAT Date & Time04/27/1986 21:24HAT Date and Time
LAT-0.74Lowest Astronomical Tide
LAT Date & Time12/31/1986 16:30LAT Date and Time
Tidal Datum Analysis Periods
07/01/1978 - 11/30/1978




Products available at 8727235 JOHNS ISLAND, CHASSAHOWITZKA BAY, FL

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