Datums for 9457391, Port Lions, AK AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9457391, Port Lions, AK, AK
Status: Accepted (Jun 11 2018)
Units: Feet
Control Station: 9457292 Kodiak Island, AK
T.M.: 135
Epoch: 2012-2016
Datum: MLLW
DatumValueDescription
MHHW9.36Mean Higher-High Water
MHW8.45Mean High Water
MTL4.80Mean Tide Level
MSL4.79Mean Sea Level
DTL4.68Mean Diurnal Tide Level
MLW1.15Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-21.82Station Datum
GT9.36Great Diurnal Range
MN7.31Mean Range of Tide
DHQ0.91Mean Diurnal High Water Inequality
DLQ1.15Mean Diurnal Low Water Inequality
HWI10.57Greenwich High Water Interval (in hours)
LWI4.29Greenwich 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
HAT12.18Highest Astronomical Tide
HAT Date & Time11/13/1985 22:48HAT Date and Time
LAT-3.00Lowest Astronomical Tide
LAT Date & Time05/24/1986 17:12LAT Date and Time
Tidal Datum Analysis Periods
07/07/2009 - 08/05/2009




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