Datums for 8514560, PORT JEFFERSON NY

NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8514560, PORT JEFFERSON, NY
Status: Accepted (Apr 17 2003)
Units: Feet
Control Station: 8510560 Montauk, NY
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
MHHW7.15Mean Higher-High Water
MHW6.83Mean High Water
MTL3.53Mean Tide Level
MSL3.52Mean Sea Level
DTL3.57Mean Diurnal Tide Level
MLW0.22Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD883.71North American Vertical Datum of 1988
STND-3.81Station Datum
GT7.16Great Diurnal Range
MN6.61Mean Range of Tide
DHQ0.32Mean Diurnal High Water Inequality
DLQ0.23Mean Diurnal Low Water Inequality
HWI3.87Greenwich High Water Interval (in hours)
LWI10.21Greenwich Low Water Interval (in hours)
Max Tide11.86Highest Observed Tide
Max Tide Date & Time02/06/1978 22:24Highest Observed Tide Date & Time
Min Tide-3.84Lowest Observed Tide
Min Tide Date & Time01/10/1978 18:30Lowest Observed Tide Date & Time
HAT8.64Highest Astronomical Tide
HAT Date & Time10/16/1993 16:18HAT Date and Time
LAT-1.40Lowest Astronomical Tide
LAT Date & Time02/08/1997 23:00LAT Date and Time
Tidal Datum Analysis Periods
10/01/1981 - 09/30/1992

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