NOAA Web Site Link Tides and Currents Home Page Transparent placeholder image

Datums for 9450314, Metlakatla, Port Chester, AK AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9450314, Metlakatla, Port Chester, AK, AK
Status: Accepted (Apr 22 2010)
Units: Feet
Control Station: 9450460 Ketchikan, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW14.87Mean Higher-High Water
MHW13.98Mean High Water
MTL7.76Mean Tide Level
MSL7.75Mean Sea Level
DTL7.43Mean Diurnal Tide Level
MLW1.55Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-9.79Station Datum
GT14.86Great Diurnal Range
MN12.43Mean Range of Tide
DHQ0.89Mean Diurnal High Water Inequality
DLQ1.55Mean Diurnal Low Water Inequality
HWI9.35Greenwich High Water Interval (in hours)
LWI3.07Greenwich 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
11/12/2009 - 12/11/2009




Products available at 9450314 Metlakatla, Port Chester, AK, AK

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services