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Datums for 8515586, NORTHPORT, NORTHPORT BAY NY


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8515586, NORTHPORT, NORTHPORT BAY, NY
Status: Accepted (May 7 2003)
Units: Feet
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW7.84Mean Higher-High Water
MHW7.49Mean High Water
MTL3.86Mean Tide Level
MSL3.87Mean Sea Level
DTL3.92Mean Diurnal Tide Level
MLW0.22Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-2.69Station Datum
GT7.85Great Diurnal Range
MN7.27Mean Range of Tide
DHQ0.35Mean Diurnal High Water Inequality
DLQ0.23Mean Diurnal Low Water Inequality
HWI3.71Greenwich High Water Interval (in hours)
LWI10.21Greenwich 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
06/01/1990 - 08/31/1990
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8515586 NORTHPORT, NORTHPORT BAY, NY

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services