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Datums for 8441241, Plum Island South MA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8441241, Plum Island South, MA
Status: Accepted (Oct 19 2010)
Units: Feet
Control Station: 8443970 Boston, MA
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW9.49Mean Higher-High Water
MHW9.09Mean High Water
MTL4.70Mean Tide Level
MSL4.69Mean Sea Level
DTL4.75Mean Diurnal Tide Level
MLW0.31Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-1.76Station Datum
GT9.49Great Diurnal Range
MN8.77Mean Range of Tide
DHQ0.40Mean Diurnal High Water Inequality
DLQ0.31Mean Diurnal Low Water Inequality
HWI4.00Greenwich High Water Interval (in hours)
LWI10.34Greenwich 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
05/01/2010 - 07/31/2010




Products available at 8441241 Plum Island South, MA

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