Datums for 9451335, COSMOS POINT


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9451335, COSMOS POINT
Status: Superseded (Apr 17 2003) (Accepted Oct 20 1997)
Units: Feet
Control Station: 9450460 Ketchikan, AK
T.M.: 135
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW16.00Mean Higher-High Water
MHW15.03Mean High Water
MTL8.29Mean Tide Level
MSL8.43Mean Sea Level
DTL7.99Mean Diurnal Tide Level
MLW1.56Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-4.94Station Datum
GT15.97Great Diurnal Range
MN13.47Mean Range of Tide
DHQ0.97Mean Diurnal High Water Inequality
DLQ1.56Mean Diurnal Low Water Inequality
HWI9.78Greenwich High Water Interval (in hours)
LWI3.49Greenwich 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
05/20/1997 - 05/29/1997




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