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Datums for 9451204, Wrangell AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9451204, Wrangell, AK
Status: Accepted (Jul 9 2004)
Units: Feet
Control Station: 9450460 Ketchikan, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW15.96Mean Higher-High Water
MHW15.08Mean High Water
MTL8.30Mean Tide Level
MSL8.27Mean Sea Level
DTL7.98Mean Diurnal Tide Level
MLW1.51Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND8.51Station Datum
GT15.96Great Diurnal Range
MN13.57Mean Range of Tide
DHQ0.88Mean Diurnal High Water Inequality
DLQ1.51Mean Diurnal Low Water Inequality
HWI9.58Greenwich High Water Interval (in hours)
LWI3.11Greenwich 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
04/14/2001 - 05/15/2001
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 9451204 Wrangell, AK

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