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Datums for 9451349, The Summit AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9451349, The Summit, AK
Status: Accepted (Jul 16 2009)
Units: Feet
Control Station: 9450460 Ketchikan, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW15.20Mean Higher-High Water
MHW14.33Mean High Water
MTL7.98Mean Tide Level
MSL8.04Mean Sea Level
DTL7.60Mean Diurnal Tide Level
MLW1.62Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND3.26Station Datum
GT15.19Great Diurnal Range
MN12.71Mean Range of Tide
DHQ0.87Mean Diurnal High Water Inequality
DLQ1.61Mean Diurnal Low Water Inequality
HWI9.82Greenwich High Water Interval (in hours)
LWI3.58Greenwich 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
HAT19.01Highest Astronomical Tide
HAT Date & Time11/04/1998 21:48HAT Date and Time
LAT-4.42Lowest Astronomical Tide
LAT Date & Time11/14/1985 04:42LAT Date and Time
Tidal Datum Analysis Periods
08/01/2007 - 08/31/2007




Products available at 9451349 The Summit, AK

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