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Datums for 9462808, Scotch Cap, Unimak Island, AK AK


Elevations on Station Datum

Station: 9462808, Scotch Cap, Unimak Island, AK, AK
Status: Accepted (Apr 19 2010)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW8.67Mean Higher-High Water
MHW8.12Mean High Water
MTL6.11Mean Tide Level
MSL6.11Mean Sea Level
DTL5.58Mean Diurnal Tide Level
MLW4.11Mean Low Water
MLLW2.49Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT6.18Great Diurnal Range
MN4.00Mean Range of Tide
DHQ0.55Mean Diurnal High Water Inequality
DLQ1.62Mean Diurnal Low Water Inequality
HWI0.02Greenwich High Water Interval (in hours)
LWI6.09Greenwich 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
05/01/2009 - 08/31/2009




Products available at 9462808 Scotch Cap, Unimak Island, AK, AK

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