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Datums for 9418817, Samoa, Humboldt Bay CA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9418817, Samoa, Humboldt Bay, CA
Status: Accepted (Jun 30 2014)
Units: Feet
Control Station: 9418767 North Spit, CA
T.M.: 120
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW7.37Mean Higher-High Water
MHW6.65Mean High Water
MTL3.98Mean Tide Level
MSL3.99Mean Sea Level
DTL3.68Mean Diurnal Tide Level
MLW1.30Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.72North American Vertical Datum of 1988
STND-1.71Station Datum
GT7.36Great Diurnal Range
MN5.35Mean Range of Tide
DHQ0.72Mean Diurnal High Water Inequality
DLQ1.30Mean Diurnal Low Water Inequality
HWI7.86Greenwich High Water Interval (in hours)
LWI1.18Greenwich 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
HAT9.32Highest Astronomical Tide
HAT Date & Time12/31/1986 19:12HAT Date and Time
LAT-2.41Lowest Astronomical Tide
LAT Date & Time05/25/1990 14:24LAT Date and Time
Tidal Datum Analysis Periods
12/01/2010 - 02/28/2011




Products available at 9418817 Samoa, Humboldt Bay, CA

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services