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Datums for 9454616, Montague Island AK


Elevations on Station Datum

Station: 9454616, Montague Island, AK
Status: Accepted (Apr 17 2003)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW10.28Mean Higher-High Water
MHW9.36Mean High Water
MTL4.79Mean Tide Level
MSL4.86Mean Sea Level
DTL4.52Mean Diurnal Tide Level
MLW0.22Mean Low Water
MLLW-1.22Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT11.51Great Diurnal Range
MN9.14Mean Range of Tide
DHQ0.92Mean Diurnal High Water Inequality
DLQ1.45Mean Diurnal Low Water Inequality
HWI10.03Greenwich High Water Interval (in hours)
LWI3.71Greenwich Low Water Interval (in hours)
Maximum11.59Highest Observed Water Level
Max Date & Time09/23/1999 08:18Highest Observed Water Level Date and Time
Minimum-3.25Lowest Observed Water Level
Min Date & Time09/28/1999 05:42Lowest Observed Water Level Date and 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
09/01/1999 - 09/30/1999




Products available at 9454616 Montague Island, AK

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