Datums for 8725985, SIESTA KEY FL


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8725985, SIESTA KEY, FL
Status: Accepted (Jun 28 2011)
Units: Feet
Control Station: 8725943 BLACKBURN POINT, FL
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.77Mean Higher-High Water
MHW1.47Mean High Water
MTL0.92Mean Tide Level
MSL0.90Mean Sea Level
DTL0.88Mean Diurnal Tide Level
MLW0.37Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD881.35North American Vertical Datum of 1988
STND-3.87Station Datum
GT1.77Great Diurnal Range
MN1.10Mean Range of Tide
DHQ0.29Mean Diurnal High Water Inequality
DLQ0.38Mean 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
HATHighest Astronomical Tide
HAT Date & Time HAT Date and Time
LATLowest Astronomical Tide
LAT Date & Time LAT Date and Time
Tidal Datum Analysis Periods
10/01/1977 - 10/31/1977




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