Datums for 9465283, NE SIDE SUMMIT ISLAND, TOGIAK BAY A 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.
NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9465283, NE SIDE SUMMIT ISLAND, TOGIAK BAY A, AK
Status: Accepted (Mar 19 2019)
Units: Feet
Control Station: 9463502 Port Moller, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW10.62Mean Higher-High Water
MHW9.44Mean High Water
MTL5.46Mean Tide Level
MSL5.69Mean Sea Level
DTL5.31Mean Diurnal Tide Level
MLW1.49Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-2.73Station Datum
GT10.63Great Diurnal Range
MN7.95Mean Range of Tide
DHQ1.18Mean Diurnal High Water Inequality
DLQ1.49Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich 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
HAT14.19Highest Astronomical Tide
HAT Date & Time12/15/1985 11:42HAT Date and Time
LAT-3.61Lowest Astronomical Tide
LAT Date & Time06/23/1986 14:18LAT Date and Time
Tidal Datum Analysis Periods
06/01/1988 - 07/31/1988




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