NOAA Web Site Link Tides and Currents Home Page Transparent placeholder image

Notice: We are experiencing a wide spread communication outage affecting the availability of water level and meteorological data for some of our stations, as well as several critical bridge clearance measurements. We are diligently working to resolve this data outage. Please direct all questions to tide.predictions@noaa.gov or call (301) 713-2815.

Datums for 8511236, PLUM ISLAND PLUM GUT HARBOR NY


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8511236, PLUM ISLAND PLUM GUT HARBOR, NY
Status: Accepted (Feb 6 2018)
Units: Feet
Control Station: 8461490 New London, Thames River, CT
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW3.09Mean Higher-High Water
MHW2.79Mean High Water
MTL1.49Mean Tide Level
MSL1.52Mean Sea Level
DTL1.54Mean Diurnal Tide Level
MLW0.19Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD881.94North American Vertical Datum of 1988
STND-3.92Station Datum
GT3.09Great Diurnal Range
MN2.60Mean Range of Tide
DHQ0.29Mean Diurnal High Water Inequality
DLQ0.20Mean Diurnal Low Water Inequality
HWI2.58Greenwich High Water Interval (in hours)
LWI8.89Greenwich 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
05/01/1989 - 10/31/1989




Products available at 8511236 PLUM ISLAND PLUM GUT HARBOR, NY

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