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Current Datum Value: 19.11

Datums for 8414721, Fort Point ME


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8414721, Fort Point, ME
Status: Accepted (Dec 12 2003)
Units: Feet
Control Station: 8418150 Portland, ME
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW11.15Mean Higher-High Water
MHW10.75Mean High Water
MTL5.56Mean Tide Level
MSL5.61Mean Sea Level
DTL5.57Mean Diurnal Tide Level
MLW0.36Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-19.11Station Datum
GT11.15Great Diurnal Range
MN10.39Mean Range of Tide
DHQ0.40Mean Diurnal High Water Inequality
DLQ0.36Mean Diurnal Low Water Inequality
HWI3.43Greenwich High Water Interval (in hours)
LWI9.62Greenwich 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
05/01/1999 - 07/31/1999
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8414721 Fort Point, ME

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services