Datums for 8441551, ROCKPORT HARBOR MA

NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8441551, ROCKPORT HARBOR, MA
Status: Accepted (Apr 17 2003)
Units: Feet
Control Station: 8443970 Boston, MA
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
MHHW9.46Mean Higher-High Water
MHW9.03Mean High Water
MTL4.68Mean Tide Level
MSL4.71Mean Sea Level
DTL4.73Mean Diurnal Tide Level
MLW0.32Mean Low Water
MLLW0.00Mean Lower-Low Water
STND-3.31Station Datum
GT9.46Great Diurnal Range
MN8.70Mean Range of Tide
DHQ0.43Mean Diurnal High Water Inequality
DLQ0.32Mean Diurnal Low Water Inequality
HWI3.68Greenwich 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
HAT11.51Highest Astronomical Tide
HAT Date & Time11/16/2016 17:00HAT Date and Time
LAT-2.05Lowest Astronomical Tide
LAT Date & Time11/27/2034 23:06LAT Date and Time
Tidal Datum Analysis Periods
08/01/1992 - 09/30/1992

Products available at 8441551 ROCKPORT HARBOR, MA