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Datums for 8452660, Newport RI


Elevations on Station Datum

Station: 8452660, Newport, RI
Status: Accepted (Apr 17 2003)
Units: Feet
T.M.: 75
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW5.74Mean Higher-High Water
MHW5.50Mean High Water
MTL3.77Mean Tide Level
MSL3.63Mean Sea Level
DTL3.82Mean Diurnal Tide Level
MLW2.03Mean Low Water
MLLW1.89Mean Lower-Low Water
NAVD883.93North American Vertical Datum of 1988
STND0.00Station Datum
GT3.85Great Diurnal Range
MN3.46Mean Range of Tide
DHQ0.25Mean Diurnal High Water Inequality
DLQ0.14Mean Diurnal Low Water Inequality
HWI0.27Greenwich High Water Interval (in hours)
LWI5.92Greenwich Low Water Interval (in hours)
Maximum15.20Highest Observed Water Level
Max Date & Time09/21/1938 00:00Highest Observed Water Level Date and Time
Minimum-1.20Lowest Observed Water Level
Min Date & Time02/03/1976 00:00Lowest Observed Water Level Date and Time
HAT7.05Highest Astronomical Tide
HAT Date & Time04/27/1994 01:18HAT Date and Time
LAT1.01Lowest Astronomical Tide
LAT Date & Time01/21/1992 06:42LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 12/31/2001
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 8452660 Newport, RI

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