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Datums for 9418767, North Spit CA


Elevations on Station Datum

Station: 9418767, North Spit, CA
Status: Accepted (Sep 30 2011)
Units: Feet
T.M.: 120
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW21.40Mean Higher-High Water
MHW20.69Mean High Water
MTL18.25Mean Tide Level
MSL18.25Mean Sea Level
DTL17.98Mean Diurnal Tide Level
MLW15.80Mean Low Water
MLLW14.55Mean Lower-Low Water
NAVD8814.89North American Vertical Datum of 1988
STND0.00Station 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)
Maximum24.43Highest Observed Water Level
Max Date & Time12/31/2005 18:54Highest Observed Water Level Date and Time
Minimum11.65Lowest Observed Water Level
Min Date & Time01/20/1988 02:18Lowest Observed Water Level Date and Time
HAT23.41Highest Astronomical Tide
HAT Date & Time12/31/1986 19:00HAT Date and Time
LAT12.16Lowest 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: 10/15/2013
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Web site owner: Center for Operational Oceanographic Products and Services