Datums for 8454578, East Greenwich RI


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8454578, East Greenwich, RI
Status: Accepted (Jun 15 2016)
Units: Feet
Control Station: 8452944 Conimicut Light, RI
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW4.47Mean Higher-High Water
MHW4.23Mean High Water
MTL2.19Mean Tide Level
MSL2.06Mean Sea Level
DTL2.23Mean Diurnal Tide Level
MLW0.17Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD882.38North American Vertical Datum of 1988
STND-4.55Station Datum
GT4.47Great Diurnal Range
MN4.06Mean Range of Tide
DHQ0.25Mean Diurnal High Water Inequality
DLQ0.17Mean Diurnal Low Water Inequality
HWI0.46Greenwich High Water Interval (in hours)
LWI5.87Greenwich 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
HAT5.79Highest Astronomical Tide
HAT Date & Time06/14/1995 01:06HAT Date and Time
LAT-1.03Lowest Astronomical Tide
LAT Date & Time02/09/1997 19:30LAT Date and Time
Tidal Datum Analysis Periods
04/01/2015 - 08/31/2015




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