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Datums for 9458907, Castle Bay AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9458907, Castle Bay, AK
Status: Accepted (Apr 17 2003)
Units: Feet
Control Station: 9459450 Sand Point, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW8.82Mean Higher-High Water
MHW8.00Mean High Water
MTL4.72Mean Tide Level
MSL4.64Mean Sea Level
DTL4.41Mean Diurnal Tide Level
MLW1.43Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-22.81Station Datum
GT8.82Great Diurnal Range
MN6.57Mean Range of Tide
DHQ0.81Mean Diurnal High Water Inequality
DLQ1.43Mean Diurnal Low Water Inequality
HWI11.22Greenwich High Water Interval (in hours)
LWI5.10Greenwich 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
HAT11.53Highest Astronomical Tide
HAT Date & Time12/12/1985 22:54HAT Date and Time
LAT-3.25Lowest Astronomical Tide
LAT Date & Time06/22/1986 17:36LAT Date and Time
Tidal Datum Analysis Periods
07/01/2001 - 07/31/2001




Products available at 9458907 Castle Bay, AK

Revised: 08/08/2018
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