Datums for 9449932, Armitage Island WA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9449932, Armitage Island, WA
Status: Superseded (Apr 17 2003) (Accepted Jun 26 2000)
Units: Feet
Control Station: 9449880 Friday Harbor, WA
T.M.: 120
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW7.84Mean Higher-High Water
MHW7.19Mean High Water
MTL4.82Mean Tide Level
MSL4.67Mean Sea Level
DTL3.92Mean Diurnal Tide Level
MLW2.45Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-3.92Station Datum
GT7.83Great Diurnal Range
MN4.73Mean Range of Tide
DHQ0.65Mean Diurnal High Water Inequality
DLQ2.45Mean Diurnal Low Water Inequality
HWI0.26Greenwich High Water Interval (in hours)
LWI6.22Greenwich Low Water Interval (in hours)
Max Tide10.58Highest Observed Tide
Max Tide Date & Time12/16/1997 15:36Highest Observed Tide Date & Time
Min Tide-3.53Lowest Observed Tide
Min Tide Date & Time12/25/1999 06:48Lowest Observed Tide Date & Time
HAT9.43Highest Astronomical Tide
HAT Date & Time12/16/2024 15:12HAT Date and Time
LAT-4.09Lowest Astronomical Tide
LAT Date & Time06/15/2026 18:00LAT Date and Time
Tidal Datum Analysis Periods
08/01/1997 - 04/30/2000




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