Datums for 9449911, Upright Head WA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9449911, Upright Head, WA
Status: Accepted (Feb 19 2016)
Units: Feet
Control Station: 9449880 Friday Harbor, WA
T.M.: 120
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW7.84Mean Higher-High Water
MHW7.20Mean High Water
MTL4.75Mean Tide Level
MSL4.62Mean Sea Level
DTL3.92Mean Diurnal Tide Level
MLW2.30Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-20.18Station Datum
GT7.84Great Diurnal Range
MN4.89Mean Range of Tide
DHQ0.64Mean Diurnal High Water Inequality
DLQ2.30Mean Diurnal Low Water Inequality
HWI0.35Greenwich High Water Interval (in hours)
LWI6.37Greenwich Low Water Interval (in hours)
Max TideHighest Observed Tide
Max Tide Date & Time Highest Observed Tide Date & Time
Min TideLowest Observed Tide
Min Tide Date & Time Lowest Observed Tide Date & Time
HAT9.75Highest Astronomical Tide
HAT Date & Time01/01/1987 15:24HAT Date and Time
LAT-3.82Lowest Astronomical Tide
LAT Date & Time06/22/1986 18:24LAT Date and Time
Tidal Datum Analysis Periods
08/01/2015 - 10/31/2015




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