Datums for 8454049, Quonset Point RI


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8454049, Quonset Point, RI
Status: Superseded (Apr 17 2003) (Accepted Jan 15 2002)
Units: Feet
Control Station: 8452660 Newport, RI
T.M.: 75
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW4.18Mean Higher-High Water
MHW3.93Mean High Water
MTL2.04Mean Tide Level
MSL1.90Mean Sea Level
DTL2.09Mean Diurnal Tide Level
MLW0.16Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-22.77Station Datum
GT4.18Great Diurnal Range
MN3.77Mean Range of Tide
DHQ0.26Mean Diurnal High Water Inequality
DLQ0.15Mean Diurnal Low Water Inequality
HWI0.42Greenwich High Water Interval (in hours)
LWI5.91Greenwich Low Water Interval (in hours)
Max Tide7.56Highest Observed Tide
Max Tide Date & Time04/16/2007 11:12Highest Observed Tide Date & Time
Min Tide-2.48Lowest Observed Tide
Min Tide Date & Time02/11/2001 21:06Lowest Observed Tide Date & Time
HAT5.48Highest Astronomical Tide
HAT Date & Time10/09/2033 13:00HAT Date and Time
LAT-1.00Lowest Astronomical Tide
LAT Date & Time03/03/2037 06:54LAT Date and Time
Tidal Datum Analysis Periods
03/01/2000 - 02/28/2001




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