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Datums for 8443970, Boston MA

Elevations on Station Datum

Station: 8443970, Boston, MA
Status: Accepted (Apr 17 2003)
Units: Feet
T.M.: 0
Epoch: 1983-2001
Datum: STND
MHHW13.80Mean Higher-High Water
MHW13.36Mean High Water
MTL8.61Mean Tide Level
MSL8.73Mean Sea Level
DTL8.66Mean Diurnal Tide Level
MLW3.87Mean Low Water
MLLW3.52Mean Lower-Low Water
NAVD889.03North American Vertical Datum of 1988
STND0.00Station Datum
GT10.27Great Diurnal Range
MN9.49Mean Range of Tide
DHQ0.44Mean Diurnal High Water Inequality
DLQ0.34Mean Diurnal Low Water Inequality
HWI3.74Greenwich High Water Interval (in hours)
LWI9.93Greenwich Low Water Interval (in hours)
Max Tide18.62Highest Observed Tide
Max Tide Date & Time02/07/1978 10:36Highest Observed Tide Date & Time
Min Tide-0.20Lowest Observed Tide
Min Tide Date & Time03/24/1940 00:00Lowest Observed Tide Date & Time
HAT15.95Highest Astronomical Tide
HAT Date & Time11/05/1998 16:30HAT Date and Time
LAT1.25Lowest Astronomical Tide
LAT Date & Time12/23/1999 22:30LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 12/31/2001

Products available at 8443970 Boston, MA

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services