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Datums for 9462787, Cape Sarichef, Unimak Island AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9462787, Cape Sarichef, Unimak Island, AK
Status: Accepted (Mar 19 2009)
Units: Feet
Control Station: 9462620 Unalaska, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW4.98Mean Higher-High Water
MHW4.64Mean High Water
MTL3.30Mean Tide Level
MSL2.98Mean Sea Level
DTL2.49Mean Diurnal Tide Level
MLW1.97Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-3.95Station Datum
GT4.98Great Diurnal Range
MN2.66Mean Range of Tide
DHQ0.35Mean Diurnal High Water Inequality
DLQ1.97Mean 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
HAT5.98Highest Astronomical Tide
HAT Date & Time12/30/1990 23:24HAT Date and Time
LAT-2.13Lowest Astronomical Tide
LAT Date & Time06/22/1986 20:30LAT Date and Time
Tidal Datum Analysis Periods
07/01/2007 - 07/31/2007




Products available at 9462787 Cape Sarichef, Unimak Island, AK

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services