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Datums for 9418767, North Spit CA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9418767, North Spit, CA
Status: Accepted (Sep 30 2011)
Units: Feet
Control Station:
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW6.85Mean Higher-High Water
MHW6.14Mean High Water
MTL3.70Mean Tide Level
MSL3.70Mean Sea Level
DTL3.43Mean Diurnal Tide Level
MLW1.25Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.34North American Vertical Datum of 1988
STND-14.55Station Datum
GT6.86Great Diurnal Range
MN4.89Mean Range of Tide
DHQ0.71Mean Diurnal High Water Inequality
DLQ1.26Mean Diurnal Low Water Inequality
HWI7.63Greenwich High Water Interval (in hours)
LWI1.18Greenwich Low Water Interval (in hours)
Max Tide9.88Highest Observed Tide
Max Tide Date & Time12/31/2005 18:54Highest Observed Tide Date & Time
Min Tide-2.90Lowest Observed Tide
Min Tide Date & Time01/20/1988 02:18Lowest Observed Tide Date & Time
HAT8.86Highest Astronomical Tide
HAT Date & Time12/31/1986 19:00HAT Date and Time
LAT-2.39Lowest Astronomical Tide
LAT Date & Time05/25/1990 14:12LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 12/31/2001
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 9418767 North Spit, CA

Revised: 08/08/2018
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