Datums for 9454691, HERRING POINT, KNIGHT ISLAND, PR WIL SND AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9454691, HERRING POINT, KNIGHT ISLAND, PR WIL SND, AK
Status: Superseded (Apr 17 2003) (Accepted Jan 21 1998)
Units: Feet
Control Station: 9454240 Valdez, AK
T.M.: 135
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW11.82Mean Higher-High Water
MHW10.91Mean High Water
MTL6.18Mean Tide Level
MSL6.34Mean Sea Level
DTL5.91Mean Diurnal Tide Level
MLW1.45Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-1.51Station Datum
GT11.82Great Diurnal Range
MN9.46Mean Range of Tide
DHQ0.91Mean Diurnal High Water Inequality
DLQ1.45Mean Diurnal Low Water Inequality
HWI10.09Greenwich High Water Interval (in hours)
LWI3.77Greenwich 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
HAT15.38Highest Astronomical Tide
HAT Date & Time11/24/2003 21:48HAT Date and Time
LAT-3.88Lowest Astronomical Tide
LAT Date & Time06/07/2039 16:36LAT Date and Time
Tidal Datum Analysis Periods
09/03/1997 - 10/25/1997




Products available at 9454691 HERRING POINT, KNIGHT ISLAND, PR WIL SND, AK