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Datums for 9450970, Thoms Point AK


Elevations on Station Datum

Station: 9450970, Thoms Point, AK
Status: Accepted (May 26 2011)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW6.14Mean Higher-High Water
MHW5.26Mean High Water
MTL-1.69Mean Tide Level
MSL-1.70Mean Sea Level
DTL-2.02Mean Diurnal Tide Level
MLW-8.64Mean Low Water
MLLW-10.19Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT16.33Great Diurnal Range
MN13.90Mean Range of Tide
DHQ0.88Mean Diurnal High Water Inequality
DLQ1.55Mean Diurnal Low Water Inequality
HWI9.53Greenwich 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
HAT9.79Highest Astronomical Tide
HAT Date & Time11/13/1985 21:36HAT Date and Time
LAT-14.54Lowest Astronomical Tide
LAT Date & Time12/24/1999 04:12LAT Date and Time
Tidal Datum Analysis Periods
04/07/2001 - 05/06/2001




Products available at 9450970 Thoms Point, AK

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