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Datums for 8515186, Fire Island NY


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8515186, Fire Island, NY
Status: Accepted (Apr 16 2014)
Units: Feet
Control Station: 8531680 Sandy Hook, NJ
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW2.21Mean Higher-High Water
MHW2.02Mean High Water
MTL1.08Mean Tide Level
MSL1.10Mean Sea Level
DTL1.10Mean Diurnal Tide Level
MLW0.14Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-6.67Station Datum
GT2.21Great Diurnal Range
MN1.89Mean Range of Tide
DHQ0.19Mean Diurnal High Water Inequality
DLQ0.14Mean Diurnal Low Water Inequality
HWI0.21Greenwich High Water Interval (in hours)
LWI6.62Greenwich 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
HAT2.79Highest Astronomical Tide
HAT Date & Time10/16/1993 12:54HAT Date and Time
LAT-0.60Lowest Astronomical Tide
LAT Date & Time01/21/1996 06:54LAT Date and Time
Tidal Datum Analysis Periods
10/01/2013 - 12/31/2013




Products available at 8515186 Fire Island, NY

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