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Datums for 9440482, CAPE HORN, COLUMBIA RIVER WA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9440482, CAPE HORN, COLUMBIA RIVER, WA
Status: Accepted (Jan 9 2017)
Units: Feet
Control Station: 9439040 Astoria, OR
T.M.: 120
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW6.36Mean Higher-High Water
MHW5.78Mean High Water
MTL3.19Mean Tide Level
MSL2.99Mean Sea Level
DTL3.18Mean Diurnal Tide Level
MLW0.59Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-19.73Station Datum
GT6.36Great Diurnal Range
MN5.19Mean Range of Tide
DHQ0.58Mean Diurnal High Water Inequality
DLQ0.58Mean Diurnal Low Water Inequality
HWI10.50Greenwich High Water Interval (in hours)
LWI5.27Greenwich 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




Products available at 9440482 CAPE HORN, COLUMBIA RIVER, WA

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services