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Datums for 9450815, Ratz Harbor AK


Elevations on Station Datum

Station: 9450815, Ratz Harbor, AK
Status: Accepted (Feb 14 2011)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW9.67Mean Higher-High Water
MHW8.80Mean High Water
MTL2.05Mean Tide Level
MSL2.05Mean Sea Level
DTL1.71Mean Diurnal Tide Level
MLW-4.70Mean Low Water
MLLW-6.25Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT15.91Great Diurnal Range
MN13.49Mean Range of Tide
DHQ0.87Mean Diurnal High Water Inequality
DLQ1.55Mean Diurnal Low Water Inequality
HWI9.52Greenwich High Water Interval (in hours)
LWI3.09Greenwich 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
04/20/2001 - 05/14/2001




Products available at 9450815 Ratz Harbor, AK

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