Datums for 9464961, CAPE CONSTANTINE, NUSHAGAK PENINSULA 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: 9464961, CAPE CONSTANTINE, NUSHAGAK PENINSULA, AK
Status: Accepted (Mar 19 2019)
Units: Feet
Control Station: 9463502 Port Moller, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW11.16Mean Higher-High Water
MHW10.08Mean High Water
MTL6.02Mean Tide Level
MSL6.05Mean Sea Level
DTL5.58Mean Diurnal Tide Level
MLW1.96Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-1.73Station Datum
GT11.16Great Diurnal Range
MN8.12Mean Range of Tide
DHQ1.08Mean Diurnal High Water Inequality
DLQ1.96Mean 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
HAT14.62Highest Astronomical Tide
HAT Date & Time11/17/1985 12:06HAT Date and Time
LAT-3.67Lowest Astronomical Tide
LAT Date & Time06/23/1986 13:42LAT Date and Time
Tidal Datum Analysis Periods
07/01/1986 - 07/31/1986




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