Datums for 8417997, CUSHING ISLAND, CASCO BAY ME


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8417997, CUSHING ISLAND, CASCO BAY, ME
Status: Accepted (May 3 2004)
Units: Feet
Control Station: 8418150 Portland, ME
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW9.81Mean Higher-High Water
MHW9.38Mean High Water
MTL4.87Mean Tide Level
MSL4.90Mean Sea Level
DTL4.91Mean Diurnal Tide Level
MLW0.36Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD884.61North American Vertical Datum of 1988
STND-1.79Station Datum
GT9.81Great Diurnal Range
MN9.02Mean Range of Tide
DHQ0.43Mean Diurnal High Water Inequality
DLQ0.35Mean Diurnal Low Water Inequality
HWI3.60Greenwich High Water Interval (in hours)
LWI9.76Greenwich 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
09/01/1979 - 09/30/1979




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