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Datums for 9444900, Port Townsend WA


Elevations on Station Datum

Station: 9444900, Port Townsend, WA
Status: Accepted (Apr 17 2003)
Units: Feet
T.M.: 120
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW11.88Mean Higher-High Water
MHW11.20Mean High Water
MTL8.53Mean Tide Level
MSL8.36Mean Sea Level
DTL7.62Mean Diurnal Tide Level
MLW5.86Mean Low Water
MLLW3.36Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT8.52Great Diurnal Range
MN5.34Mean Range of Tide
DHQ0.68Mean Diurnal High Water Inequality
DLQ2.49Mean Diurnal Low Water Inequality
HWI12.34Greenwich High Water Interval (in hours)
LWI5.67Greenwich Low Water Interval (in hours)
Maximum15.09Highest Observed Water Level
Max Date & Time12/10/1993 20:06Highest Observed Water Level Date and Time
Minimum-0.86Lowest Observed Water Level
Min Date & Time12/12/1985 22:06Lowest Observed Water Level Date and Time
HAT13.35Highest Astronomical Tide
HAT Date & Time12/14/1985 15:18HAT Date and Time
LAT-0.62Lowest Astronomical Tide
LAT Date & Time06/22/1986 17:36LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 12/31/2001




Products available at 9444900 Port Townsend, WA

Revised: 10/15/2013
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