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Datums for 9438772, Cathcart Landing OR


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9438772, Cathcart Landing, OR
Status: Accepted (Feb 3 2014)
Units: Feet
Control Station: 9439040 Astoria, OR
T.M.: 120
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW8.84Mean Higher-High Water
MHW8.14Mean High Water
MTL4.65Mean Tide Level
MSL4.66Mean Sea Level
DTL4.42Mean Diurnal Tide Level
MLW1.15Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88-0.06North American Vertical Datum of 1988
STND-30.67Station Datum
GT8.83Great Diurnal Range
MN6.99Mean Range of Tide
DHQ0.70Mean Diurnal High Water Inequality
DLQ1.14Mean Diurnal Low Water Inequality
HWI9.02Greenwich High Water Interval (in hours)
LWI2.85Greenwich 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
HAT11.25Highest Astronomical Tide
HAT Date & Time12/31/1986 20:36HAT Date and Time
LAT-2.36Lowest Astronomical Tide
LAT Date & Time07/02/2000 15:48LAT Date and Time
Tidal Datum Analysis Periods
06/01/2013 - 09/30/2013




Products available at 9438772 Cathcart Landing, OR

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