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Datums for 9450973, Blashke Island AK


Elevations on Station Datum

Station: 9450973, Blashke Island, AK
Status: Accepted (Dec 1 2010)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW29.08Mean Higher-High Water
MHW28.18Mean High Water
MTL21.45Mean Tide Level
MSL21.36Mean Sea Level
DTL21.17Mean Diurnal Tide Level
MLW14.72Mean Low Water
MLLW13.26Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT15.82Great Diurnal Range
MN13.45Mean Range of Tide
DHQ0.90Mean Diurnal High Water Inequality
DLQ1.47Mean Diurnal Low Water Inequality
HWI9.64Greenwich High Water Interval (in hours)
LWI3.50Greenwich 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
08/26/2002 - 09/16/2002




Products available at 9450973 Blashke Island, AK

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