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Datums for 9458762, UNAVIKSHAK ISLAND AK


Elevations on Station Datum

Station: 9458762, UNAVIKSHAK ISLAND, AK
Status: Accepted (Mar 16 2004)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW9.06Mean Higher-High Water
MHW8.21Mean High Water
MTL4.78Mean Tide Level
MSL4.68Mean Sea Level
DTL4.52Mean Diurnal Tide Level
MLW1.35Mean Low Water
MLLW-0.02Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT9.08Great Diurnal Range
MN6.86Mean Range of Tide
DHQ0.84Mean Diurnal High Water Inequality
DLQ1.38Mean Diurnal Low Water Inequality
HWI11.20Greenwich High Water Interval (in hours)
LWI5.05Greenwich 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
07/10/1997 - 08/27/1997




Products available at 9458762 UNAVIKSHAK ISLAND, AK

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