Datums for 8419870, Seavey Island ME


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8419870, Seavey Island, ME
Status: Accepted (Aug 8 2016)
Units: Feet
Control Station: 8418150 Portland, ME
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW8.84Mean Higher-High Water
MHW8.43Mean High Water
MTL4.38Mean Tide Level
MSL4.43Mean Sea Level
DTL4.42Mean Diurnal Tide Level
MLW0.32Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD884.62North American Vertical Datum of 1988
STND-2.35Station Datum
GT8.84Great Diurnal Range
MN8.11Mean Range of Tide
DHQ0.41Mean Diurnal High Water Inequality
DLQ0.32Mean Diurnal Low Water Inequality
HWI3.92Greenwich High Water Interval (in hours)
LWI10.04Greenwich Low Water Interval (in hours)
Max Tide12.52Highest Observed Tide
Max Tide Date & Time02/07/1978 10:42Highest Observed Tide Date & Time
Min Tide-3.35Lowest Observed Tide
Min Tide Date & Time11/30/1955 00:00Lowest Observed Tide Date & Time
HAT10.52Highest Astronomical Tide
HAT Date & Time06/15/1995 05:12HAT Date and Time
LAT-1.67Lowest Astronomical Tide
LAT Date & Time01/21/1996 22:54LAT Date and Time
Tidal Datum Analysis Periods
11/01/2000 - 10/31/2001




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