Datums for 8441841, GLOUCESTER HARBOR MA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8441841, GLOUCESTER HARBOR, MA
Status: Superseded (Apr 17 2003) (Accepted Feb 24 2000)
Units: Feet
Control Station: 8443970 Boston, MA
T.M.: 75
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW9.63Mean Higher-High Water
MHW9.19Mean High Water
MTL4.76Mean Tide Level
MSL4.79Mean Sea Level
DTL4.82Mean Diurnal Tide Level
MLW0.34Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-3.89Station Datum
GT9.63Great Diurnal Range
MN8.85Mean Range of Tide
DHQ0.44Mean Diurnal High Water Inequality
DLQ0.33Mean Diurnal Low Water Inequality
HWI3.70Greenwich High Water Interval (in hours)
LWI9.84Greenwich 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
07/01/1992 - 09/30/1992




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