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Datums for 9450973, Blashke Island AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9450973, Blashke Island, AK
Status: Accepted (Dec 1 2010)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW15.82Mean Higher-High Water
MHW14.92Mean High Water
MTL8.19Mean Tide Level
MSL8.10Mean Sea Level
DTL7.91Mean Diurnal Tide Level
MLW1.46Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-13.26Station Datum
GT15.82Great Diurnal Range
MN13.45Mean Range of Tide
DHQ0.90Mean Diurnal High Water Inequality
DLQ1.47Mean Diurnal Low Water Inequality
HWI9.64Greenwich High Water Interval (in hours)
LWI3.50Greenwich 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
08/26/2002 - 09/16/2002




Products available at 9450973 Blashke Island, AK

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