Datums for 9497649, PRUDHOE BAY #2 AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9497649, PRUDHOE BAY #2, AK
Status: Superseded (Apr 17 2003) (Accepted Feb 4 1994)
Units: Feet
Control Station:
T.M.: 135
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW0.70Mean Higher-High Water
MHW0.60Mean High Water
MTL0.33Mean Tide Level
MSL0.35Mean Sea Level
DTL0.35Mean Diurnal Tide Level
MLW0.07Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-2.35Station Datum
GT0.70Great Diurnal Range
MN0.53Mean Range of Tide
DHQ0.10Mean Diurnal High Water Inequality
DLQ0.07Mean 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
HAT1.02Highest Astronomical Tide
HAT Date & Time10/18/2024 10:30HAT Date and Time
LAT-0.22Lowest Astronomical Tide
LAT Date & Time11/08/2025 04:54LAT Date and Time
Tidal Datum Analysis Periods




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