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Datums for 9462450, Nikolski AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9462450, Nikolski, AK
Status: Accepted (Sep 25 2017)
Units: Feet
Control Station: 9462620 Unalaska, AK
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW3.98Mean Higher-High Water
MHW3.65Mean High Water
MTL2.31Mean Tide Level
MSL2.27Mean Sea Level
DTL1.99Mean Diurnal Tide Level
MLW0.98Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.59North American Vertical Datum of 1988
STND-4.09Station Datum
GT3.98Great Diurnal Range
MN2.66Mean Range of Tide
DHQ0.34Mean Diurnal High Water Inequality
DLQ0.98Mean Diurnal Low Water Inequality
HWI2.54Greenwich High Water Interval (in hours)
LWI8.55Greenwich Low Water Interval (in hours)
Max Tide2.28Highest Observed Tide
Max Tide Date & Time12/08/2012 21:06Highest Observed Tide Date & Time
Min Tide-6.95Lowest Observed Tide
Min Tide Date & Time12/13/2008 08:30Lowest Observed Tide Date & Time
HAT5.17Highest Astronomical Tide
HAT Date & Time12/30/1990 23:00HAT Date and Time
LAT-2.12Lowest Astronomical Tide
LAT Date & Time06/22/1986 21:00LAT Date and Time
Tidal Datum Analysis Periods
12/01/2008 - 11/30/2009
08/01/2010 - 07/31/2012
01/01/2013 - 12/31/2016




Products available at 9462450 Nikolski, AK

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