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Datums for 9414750, Alameda CA


Elevations on Station Datum

Station: 9414750, Alameda, CA
Status: Accepted (Oct 6 2011)
Units: Feet
T.M.: 0
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW9.93Mean Higher-High Water
MHW9.31Mean High Water
MTL6.89Mean Tide Level
MSL6.78Mean Sea Level
DTL6.63Mean Diurnal Tide Level
MLW4.47Mean Low Water
MLLW3.33Mean Lower-Low Water
NAVD883.56North American Vertical Datum of 1988
STND0.00Station Datum
GT6.59Great Diurnal Range
MN4.84Mean Range of Tide
DHQ0.62Mean Diurnal High Water Inequality
DLQ1.13Mean Diurnal Low Water Inequality
HWI8.01Greenwich High Water Interval (in hours)
LWI1.50Greenwich Low Water Interval (in hours)
Maximum12.98Highest Observed Water Level
Max Date & Time12/03/1983 18:18Highest Observed Water Level Date and Time
Minimum0.76Lowest Observed Water Level
Min Date & Time01/11/2009 01:42Lowest Observed Water Level Date and Time
HAT11.31Highest Astronomical Tide
HAT Date & Time12/31/1986 19:18HAT Date and Time
LAT1.39Lowest Astronomical Tide
LAT Date & Time05/25/1990 14:24LAT 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 9414750 Alameda, CA

Revised: 10/15/2013
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