Datums for 9440079, Beacon Rock State Park


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9440079, Beacon Rock State Park
Status: Accepted (Feb 9 2017)
Units: Feet
Control Station: 9439040 Astoria, OR
T.M.: 120
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.74Mean Higher-High Water
MHW1.34Mean High Water
MTL0.83Mean Tide Level
MSL0.78Mean Sea Level
DTL0.87Mean Diurnal Tide Level
MLW0.32Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-33.40Station Datum
GT1.74Great Diurnal Range
MN1.02Mean Range of Tide
DHQ0.39Mean Diurnal High Water Inequality
DLQ0.32Mean Diurnal Low Water Inequality
HWI4.23Greenwich High Water Interval (in hours)
LWI12.38Greenwich 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
HATHighest Astronomical Tide
HAT Date & Time HAT Date and Time
LATLowest Astronomical Tide
LAT Date & Time LAT Date and Time
Tidal Datum Analysis Periods
08/01/2016 - 10/31/2016




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