Datums for 8446493, PLYMOUTH, PLYMOUTH HARBOR MA


NOTICE: All data values are relative to the NAVD88.

Elevations on NAVD88

Station: 8446493, PLYMOUTH, PLYMOUTH HARBOR, MA
Status: Accepted (Apr 17 2003)
Units: Meters
Control Station: 8443970 Boston, MA
T.M.: 75
Epoch: 1983-2001
Datum: NAVD88
DatumValueDescription
MHHW1.453Mean Higher-High Water
MHW1.319Mean High Water
MTL-0.168Mean Tide Level
MSL-0.118Mean Sea Level
DTL-0.153Mean Diurnal Tide Level
MLW-1.655Mean Low Water
MLLW-1.758Mean Lower-Low Water
NAVD880.000North American Vertical Datum of 1988
STND-2.687Station Datum
GT3.211Great Diurnal Range
MN2.974Mean Range of Tide
DHQ0.134Mean Diurnal High Water Inequality
DLQ0.104Mean Diurnal Low Water Inequality
HWI3.801Greenwich High Water Interval (in hours)
LWI10.232Greenwich 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
HAT2.102Highest Astronomical Tide
HAT Date & Time11/16/2016 17:12HAT Date and Time
LAT-2.341Lowest Astronomical Tide
LAT Date & Time11/27/2034 23:30LAT Date and Time
Tidal Datum Analysis Periods
06/01/1990 - 08/31/1990




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