Datums for 8419688, GERRISH ISLAND, KITTERY ME


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8419688, GERRISH ISLAND, KITTERY, ME
Status: Superseded (Apr 17 2003) (Accepted Dec 17 1997)
Units: Feet
Control Station: 8418150 Portland, ME
T.M.: 75
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW9.47Mean Higher-High Water
MHW9.04Mean High Water
MTL4.70Mean Tide Level
MSL4.72Mean Sea Level
DTL4.74Mean Diurnal Tide Level
MLW0.36Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-0.58Station Datum
GT9.47Great Diurnal Range
MN8.68Mean Range of Tide
DHQ0.44Mean Diurnal High Water Inequality
DLQ0.35Mean Diurnal Low Water Inequality
HWI3.69Greenwich High Water Interval (in hours)
LWI9.87Greenwich 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
08/01/1997 - 09/30/1997




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