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Datums for 9414750, Alameda CA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9414750, Alameda, CA
Status: Accepted (Oct 6 2011)
Units: Feet
Control Station:
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW6.60Mean Higher-High Water
MHW5.98Mean High Water
MTL3.56Mean Tide Level
MSL3.45Mean Sea Level
DTL3.30Mean Diurnal Tide Level
MLW1.14Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.23North American Vertical Datum of 1988
STND-3.33Station 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)
Max Tide9.65Highest Observed Tide
Max Tide Date & Time12/03/1983 18:18Highest Observed Tide Date & Time
Min Tide-2.57Lowest Observed Tide
Min Tide Date & Time01/11/2009 01:42Lowest Observed Tide Date & Time
HAT7.98Highest Astronomical Tide
HAT Date & Time12/31/1986 19:18HAT Date and Time
LAT-1.94Lowest 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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