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Datums for 9418802, EUREKA SLOUGH, HUMBOLDT BAY CA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9418802, EUREKA SLOUGH, HUMBOLDT BAY, CA
Status: Accepted (Apr 24 2003)
Units: Feet
Control Station: 9419750 Crescent City, CA
T.M.: 120
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW7.40Mean Higher-High Water
MHW6.66Mean High Water
MTL3.97Mean Tide Level
MSL3.98Mean Sea Level
DTL3.70Mean Diurnal Tide Level
MLW1.29Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.77North American Vertical Datum of 1988
STND-2.64Station Datum
GT7.39Great Diurnal Range
MN5.37Mean Range of Tide
DHQ0.74Mean Diurnal High Water Inequality
DLQ1.28Mean Diurnal Low Water Inequality
HWI8.18Greenwich High Water Interval (in hours)
LWI1.40Greenwich 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
04/01/1978 - 09/30/1978
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 9418802 EUREKA SLOUGH, HUMBOLDT BAY, CA

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