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Datums for 9450938, Thorne Island AK


Elevations on Station Datum

Station: 9450938, Thorne Island, AK
Status: Accepted (Feb 14 2011)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW9.03Mean Higher-High Water
MHW8.17Mean High Water
MTL1.40Mean Tide Level
MSL1.35Mean Sea Level
DTL1.06Mean Diurnal Tide Level
MLW-5.38Mean Low Water
MLLW-6.92Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT15.95Great Diurnal Range
MN13.55Mean Range of Tide
DHQ0.86Mean Diurnal High Water Inequality
DLQ1.54Mean Diurnal Low Water Inequality
HWI9.57Greenwich High Water Interval (in hours)
LWI3.11Greenwich 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
04/19/2001 - 05/14/2001




Products available at 9450938 Thorne Island, AK

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