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Datums for 9494935, Barrow Offshore AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9494935, Barrow Offshore, AK
Status: Accepted (May 18 2011)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW0.66Mean Higher-High Water
MHW0.55Mean High Water
MTL0.30Mean Tide Level
MSL0.31Mean Sea Level
DTL0.33Mean Diurnal Tide Level
MLW0.06Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-147.49Station Datum
GT0.66Great Diurnal Range
MN0.49Mean Range of Tide
DHQ0.12Mean Diurnal High Water Inequality
DLQ0.06Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide2.92Highest Observed Tide
Max Tide Date & Time12/14/2008 09:48Highest Observed Tide Date & Time
Min Tide-2.57Lowest Observed Tide
Min Tide Date & Time01/29/2010 15:18Lowest 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
09/01/2008 - 08/31/2009




Products available at 9494935 Barrow Offshore, AK

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services