Datums for 8447685, Chappaquoit Point MA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8447685, Chappaquoit Point, MA
Status: Superseded (Apr 17 2003) (Accepted Dec 4 2000)
Units: Feet
Control Station: 8452660 Newport, RI
T.M.: 75
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW4.33Mean Higher-High Water
MHW4.05Mean High Water
MTL2.11Mean Tide Level
MSL1.89Mean Sea Level
DTL2.17Mean Diurnal Tide Level
MLW0.17Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-3.63Station Datum
GT4.33Great Diurnal Range
MN3.88Mean Range of Tide
DHQ0.28Mean Diurnal High Water Inequality
DLQ0.16Mean Diurnal Low Water Inequality
HWI0.40Greenwich High Water Interval (in hours)
LWI6.05Greenwich 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
HAT5.50Highest Astronomical Tide
HAT Date & Time10/09/2033 13:00HAT Date and Time
LAT-1.01Lowest Astronomical Tide
LAT Date & Time02/20/2015 19:36LAT Date and Time
Tidal Datum Analysis Periods
08/01/2000 - 09/30/2000




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