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Datums for 9457726, Geese Island GPS Tide Buoy AK


Data Quality Data from this station was collected using methodology that does not meet CO-OPS highest level of accuracy (no more than 10 cm, 95% Confidence Interval (CI) referenced to a tidal datum). Recognizing that lower quality data can be used for certain applications CO-OPS is making this data available to its users with restraint. The average six-minute water level observations derived from this system have an accuracy ranging from 10.0 - 30.0 cm, 95% CI on datum. Users are cautioned to consider the accuracy of these data before using them for critical navigational or coastal engineering purposes.

Elevations on Station Datum

Station: 9457726, Geese Island GPS Tide Buoy, AK
Status: Accepted (Oct 27 2016)
Units: Feet
T.M.: 135
Epoch: 2007-2011
Datum: STND
DatumValueDescription
MHHW48.67Mean Higher-High Water
MHW48.06Mean High Water
MTL44.60Mean Tide Level
MSL44.51Mean Sea Level
DTL44.29Mean Diurnal Tide Level
MLW41.14Mean Low Water
MLLW39.91Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT8.76Great Diurnal Range
MN6.92Mean Range of Tide
DHQ0.61Mean Diurnal High Water Inequality
DLQ1.23Mean Diurnal Low Water Inequality
HWI10.45Greenwich High Water Interval (in hours)
LWI4.26Greenwich 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
HATHighest Astronomical Tide
HAT Date & Time HAT Date and Time
LATLowest Astronomical Tide
LAT Date & Time LAT Date and Time
Tidal Datum Analysis Periods
06/28/2016 - 07/27/2016




Products available at 9457726 Geese Island GPS Tide Buoy, AK

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