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Current Datum Value: 2.67

Datums for 8513825, SMITH POINT BRIDGE, NARROW BAY NY


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8513825, SMITH POINT BRIDGE, NARROW BAY, NY
Status: Accepted (May 19 2005)
Units: Feet
Control Station: 8510560 Montauk, NY
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.46Mean Higher-High Water
MHW1.30Mean High Water
MTL0.71Mean Tide Level
MSL0.73Mean Sea Level
DTL0.73Mean Diurnal Tide Level
MLW0.12Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-2.67Station Datum
GT1.46Great Diurnal Range
MN1.18Mean Range of Tide
DHQ0.16Mean Diurnal High Water Inequality
DLQ0.12Mean Diurnal Low Water Inequality
HWI2.22Greenwich High Water Interval (in hours)
LWI9.20Greenwich Low Water Interval (in hours)
Max Tide3.21Highest Observed Tide
Max Tide Date & Time12/04/1990 12:06Highest Observed Tide Date & Time
Min Tide-1.22Lowest Observed Tide
Min Tide Date & Time02/21/1990 00:00Lowest 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
02/01/1990 - 01/31/1991




Products available at 8513825 SMITH POINT BRIDGE, NARROW BAY, NY

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