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Datums for 9457535, West Raspberry Island AK


Elevations on Station Datum

Station: 9457535, West Raspberry Island, AK
Status: Accepted (Jan 6 2015)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW14.38Mean Higher-High Water
MHW13.53Mean High Water
MTL7.76Mean Tide Level
MSL7.69Mean Sea Level
DTL7.36Mean Diurnal Tide Level
MLW1.98Mean Low Water
MLLW0.34Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT14.04Great Diurnal Range
MN11.56Mean Range of Tide
DHQ0.84Mean Diurnal High Water Inequality
DLQ1.64Mean Diurnal Low Water Inequality
HWI11.15Greenwich High Water Interval (in hours)
LWI5.01Greenwich 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
HAT18.61Highest Astronomical Tide
HAT Date & Time11/13/1985 23:18HAT Date and Time
LAT-4.20Lowest Astronomical Tide
LAT Date & Time05/25/1990 17:54LAT Date and Time
Tidal Datum Analysis Periods
05/01/2014 - 06/30/2014




Products available at 9457535 West Raspberry Island, AK

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