Datums for 9451005, POINT HARRINGTON, CLARENCE STRAIT AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9451005, POINT HARRINGTON, CLARENCE STRAIT, AK
Status: Superseded (Apr 17 2003) (Accepted Jun 23 2000)
Units: Feet
Control Station: 9450460 Ketchikan, AK
T.M.: 135
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW15.92Mean Higher-High Water
MHW15.04Mean High Water
MTL8.27Mean Tide Level
MSL8.25Mean Sea Level
DTL7.96Mean Diurnal Tide Level
MLW1.52Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND2.28Station Datum
GT15.91Great Diurnal Range
MN13.53Mean Range of Tide
DHQ0.88Mean Diurnal High Water Inequality
DLQ1.51Mean Diurnal Low Water Inequality
HWI9.60Greenwich 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
HAT20.03Highest Astronomical Tide
HAT Date & Time11/15/2020 21:18HAT Date and Time
LAT-4.75Lowest Astronomical Tide
LAT Date & Time11/25/2003 04:00LAT Date and Time
Tidal Datum Analysis Periods
04/01/2000 - 04/30/2000




Products available at 9451005 POINT HARRINGTON, CLARENCE STRAIT, AK