Datums for 9468863, ELIM, NORTON BAY

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: 9468863, ELIM, NORTON BAY
Status: Accepted (Nov 29 2019)
Units: Feet
Control Station: 9468756 Nome, Norton Sound, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW2.62Mean Higher-High Water
MHW2.36Mean High Water
MTL1.45Mean Tide Level
MSL1.28Mean Sea Level
DTL1.32Mean Diurnal Tide Level
MLW0.54Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88-2.56North American Vertical Datum of 1988
STND-1.51Station Datum
GT2.62Great Diurnal Range
MN1.81Mean Range of Tide
DHQ0.27Mean Diurnal High Water Inequality
DLQ0.54Mean 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
HAT5.37Highest Astronomical Tide
HAT Date & Time07/03/2004 20:54HAT Date and Time
LAT-2.13Lowest Astronomical Tide
LAT Date & Time11/27/2007 19:24LAT Date and Time
Tidal Datum Analysis Periods
09/01/2012 - 09/30/2012


Products available at 9468863 ELIM, NORTON BAY,
  • Meteorological/Other
  • Meteorological Observations
  • Water Temp/Conductivity
  • PORTS®
  • This station is not a member of PORTS®