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

Datums for 9450938, Thorne Island AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9450938, Thorne Island, AK
Status: Accepted (Feb 14 2011)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW15.95Mean Higher-High Water
MHW15.09Mean High Water
MTL8.32Mean Tide Level
MSL8.27Mean Sea Level
DTL7.98Mean Diurnal Tide Level
MLW1.54Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND6.92Station Datum
GT15.95Great Diurnal Range
MN13.55Mean Range of Tide
DHQ0.86Mean Diurnal High Water Inequality
DLQ1.54Mean Diurnal Low Water Inequality
HWI9.57Greenwich 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
04/19/2001 - 05/14/2001




Products available at 9450938 Thorne Island, AK

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