Datums for 8442645, SALEM, SALEM HARBOR MA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8442645, SALEM, SALEM HARBOR, MA
Status: Accepted (Apr 17 2003)
Units: Feet
Control Station: 8443970 Boston, MA
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW9.70Mean Higher-High Water
MHW9.26Mean High Water
MTL4.80Mean Tide Level
MSL4.85Mean Sea Level
DTL4.85Mean Diurnal Tide Level
MLW0.33Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-1.49Station Datum
GT9.70Great Diurnal Range
MN8.93Mean Range of Tide
DHQ0.44Mean Diurnal High Water Inequality
DLQ0.33Mean Diurnal Low Water Inequality
HWI3.70Greenwich High Water Interval (in hours)
LWI9.85Greenwich 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
09/01/1992 - 09/30/1992




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