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Datums for 9450815, Ratz Harbor AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9450815, Ratz Harbor, AK
Status: Accepted (Feb 14 2011)
Units: Feet
Control Station: 9450460 Ketchikan, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW15.92Mean Higher-High Water
MHW15.05Mean High Water
MTL8.30Mean Tide Level
MSL8.30Mean Sea Level
DTL7.96Mean Diurnal Tide Level
MLW1.55Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND6.25Station 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)
Max TideHighest Observed Tide
Max Tide Date & Time Highest Observed Tide Date & Time
Min TideLowest Observed Tide
Min Tide Date & Time Lowest Observed Tide Date & 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