Datums for 9496345, CAPE HALKETT AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9496345, CAPE HALKETT, AK
Status: Accepted (Apr 13 2026)
Units: Feet
Control Station: 9497645 Prudhoe Bay, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW0.74Mean Higher-High Water
MHW0.62Mean High Water
MTL0.35Mean Tide Level
MSL0.38Mean Sea Level
DTL0.38Mean Diurnal Tide Level
MLW0.08Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88-2.52North American Vertical Datum of 1988
STND-29.26Station Datum
GT0.74Great Diurnal Range
MN0.53Mean Range of Tide
DHQ0.13Mean Diurnal High Water Inequality
DLQ0.08Mean 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
HATHighest Astronomical Tide
HAT Date & Time HAT Date and Time
LATLowest Astronomical Tide
LAT Date & Time LAT Date and Time
Tidal Datum Analysis Periods
08/01/2025 - 08/31/2025




Products available at 9496345 CAPE HALKETT, AK