Datums for 9451204, Wrangell


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9451204, Wrangell
Status: Superseded (Apr 17 2003) (Accepted Jul 26 2001)
Units: Feet
Control Station: 9450460 Ketchikan, AK
T.M.: 135
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW15.92Mean Higher-High Water
MHW15.06Mean High Water
MTL8.28Mean Tide Level
MSL8.30Mean Sea Level
DTL7.96Mean Diurnal Tide Level
MLW1.51Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND8.49Station Datum
GT15.94Great Diurnal Range
MN13.55Mean Range of Tide
DHQ0.87Mean Diurnal High Water Inequality
DLQ1.50Mean Diurnal Low Water Inequality
HWI9.62Greenwich High Water Interval (in hours)
LWI3.12Greenwich 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
HAT20.12Highest Astronomical Tide
HAT Date & Time11/15/2020 21:24HAT Date and Time
LAT-4.69Lowest Astronomical Tide
LAT Date & Time11/25/2003 03:54LAT Date and Time
Tidal Datum Analysis Periods
04/08/2001 - 05/16/2001




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