Datums for 8419317, Wells ME


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8419317, Wells, ME
Status: Superseded (Apr 17 2003) (Accepted Nov 12 1999)
Units: Feet
Control Station: 8418150 Portland, ME
T.M.: 0
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW9.55Mean Higher-High Water
MHW9.12Mean High Water
MTL4.72Mean Tide Level
MSL4.76Mean Sea Level
DTL4.78Mean Diurnal Tide Level
MLW0.32Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-14.65Station Datum
GT9.54Great Diurnal Range
MN8.79Mean Range of Tide
DHQ0.43Mean Diurnal High Water Inequality
DLQ0.32Mean Diurnal Low Water Inequality
HWI3.70Greenwich High Water Interval (in hours)
LWI9.80Greenwich Low Water Interval (in hours)
Max Tide13.47Highest Observed Tide
Max Tide Date & Time01/04/2018 17:48Highest Observed Tide Date & Time
Min Tide-2.95Lowest Observed Tide
Min Tide Date & Time02/20/2015 23:00Lowest Observed Tide Date & Time
HAT11.54Highest Astronomical Tide
HAT Date & Time05/19/2034 04:12HAT Date and Time
LAT-2.10Lowest Astronomical Tide
LAT Date & Time01/14/2036 22:42LAT Date and Time
Tidal Datum Analysis Periods
07/01/1999 - 07/31/1999




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