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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: Meters
T.M.: 0
Epoch: 1983-2001
Datum: STND
MHHW3.621Mean Higher-High Water
MHW3.414Mean High Water
MTL2.599Mean Tide Level
MSL2.547Mean Sea Level
DTL2.323Mean Diurnal Tide Level
MLW1.785Mean Low Water
MLLW1.025Mean Lower-Low Water
STND0.000Station Datum
GT2.597Great Diurnal Range
MN1.629Mean Range of Tide
DHQ0.208Mean Diurnal High Water Inequality
DLQ0.760Mean Diurnal Low Water Inequality
HWI12.340Greenwich High Water Interval (in hours)
LWI5.670Greenwich Low Water Interval (in hours)
Max Tide4.599Highest Observed Tide
Max Tide Date & Time12/10/1993 20:06Highest Observed Tide Date & Time
Min Tide-0.262Lowest Observed Tide
Min Tide Date & Time12/12/1985 22:06Lowest Observed Tide Date & Time
HAT4.069Highest Astronomical Tide
HAT Date & Time12/14/1985 15:18HAT Date and Time
LAT-0.189Lowest 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
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services