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Datums for 9466057, Popokamute (Kokokamute), Kuskokwim River 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: 9466057, Popokamute (Kokokamute), Kuskokwim River, AK
Status: Accepted (Jan 11 2012)
Units: Feet
Control Station:
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW11.02Mean Higher-High Water
MHW8.92Mean High Water
MTL4.77Mean Tide Level
MSL5.05Mean Sea Level
DTL5.51Mean Diurnal Tide Level
MLW0.61Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-20.16Station Datum
GT11.02Great Diurnal Range
MN8.30Mean Range of Tide
DHQ2.10Mean Diurnal High Water Inequality
DLQ0.62Mean Diurnal Low Water Inequality
HWI8.86Greenwich High Water Interval (in hours)
LWI3.56Greenwich 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
HAT14.46Highest Astronomical Tide
HAT Date & Time12/14/1985 10:18HAT Date and Time
LAT-0.99Lowest Astronomical Tide
LAT Date & Time07/08/1996 09:00LAT Date and Time
Tidal Datum Analysis Periods
07/01/2011 - 08/31/2011




Products available at 9466057 Popokamute (Kokokamute), Kuskokwim River, AK

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services