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Datums for 9450305, BOCA DE QUADRA AK


Elevations on Station Datum

Station: 9450305, BOCA DE QUADRA, AK
Status: Accepted (Jul 8 2004)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW28.65Mean Higher-High Water
MHW27.77Mean High Water
MTL21.41Mean Tide Level
MSL21.41Mean Sea Level
DTL21.08Mean Diurnal Tide Level
MLW15.05Mean Low Water
MLLW13.51Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT15.13Great Diurnal Range
MN12.72Mean Range of Tide
DHQ0.88Mean Diurnal High Water Inequality
DLQ1.53Mean Diurnal Low Water Inequality
HWI9.41Greenwich High Water Interval (in hours)
LWI3.13Greenwich Low Water Interval (in hours)
MaximumHighest Observed Water Level
Max Date & Time Highest Observed Water Level Date and Time
MinimumLowest Observed Water Level
Min Date & Time Lowest Observed Water Level Date and Time
HATHighest Astronomical Tide
HAT Date & Time HAT Date and Time
LATLowest Astronomical Tide
LAT Date & Time LAT Date and Time
Tidal Datum Analysis Periods
10/01/1982 - 10/31/1982




Products available at 9450305 BOCA DE QUADRA, AK

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