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Datums for 9459251, Bird Island, Shumagin Bank AK


Elevations on Station Datum

Station: 9459251, Bird Island, Shumagin Bank, AK
Status: Accepted (Nov 7 2013)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW8.34Mean Higher-High Water
MHW7.61Mean High Water
MTL5.14Mean Tide Level
MSL5.09Mean Sea Level
DTL4.81Mean Diurnal Tide Level
MLW2.66Mean Low Water
MLLW1.29Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT7.05Great Diurnal Range
MN4.96Mean Range of Tide
DHQ0.72Mean Diurnal High Water Inequality
DLQ1.37Mean Diurnal Low Water Inequality
HWI11.11Greenwich High Water Interval (in hours)
LWI4.78Greenwich Low Water Interval (in hours)
MaximumHighest Observed Water Level
Max Date & Time Highest Observed Water Level Date and Time
MinimumLowest Observed Water Level
Min Date & Time Lowest Observed Water Level Date and Time
HAT10.53Highest Astronomical Tide
HAT Date & Time12/12/1985 22:30HAT Date and Time
LAT-1.60Lowest Astronomical Tide
LAT Date & Time06/22/1986 17:30LAT Date and Time
Tidal Datum Analysis Periods
07/14/2013 - 08/13/2013




Products available at 9459251 Bird Island, Shumagin Bank, AK

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