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Datums for 8444162, Boston Light MA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8444162, Boston Light, MA
Status: Accepted (Oct 14 2011)
Units: Feet
Control Station: 8443970 Boston, MA
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW9.81Mean Higher-High Water
MHW9.37Mean High Water
MTL4.85Mean Tide Level
MSL4.91Mean Sea Level
DTL4.90Mean Diurnal Tide Level
MLW0.32Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-7.39Station Datum
GT9.82Great Diurnal Range
MN9.05Mean Range of Tide
DHQ0.44Mean Diurnal High Water Inequality
DLQ0.33Mean Diurnal Low Water Inequality
HWI3.72Greenwich High Water Interval (in hours)
LWI9.90Greenwich Low Water Interval (in hours)
Max Tide11.79Highest Observed Tide
Max Tide Date & Time02/21/2004 16:48Highest Observed Tide Date & Time
Min Tide-2.85Lowest Observed Tide
Min Tide Date & Time02/12/2001 00:54Lowest 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
07/01/2001 - 06/30/2002




Products available at 8444162 Boston Light, MA

Revised: 08/08/2018
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