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Datums for 9451853, Sergius Narrows AK


Elevations on Station Datum

Station: 9451853, Sergius Narrows, AK
Status: Accepted (Jan 21 2004)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW10.79Mean Higher-High Water
MHW9.92Mean High Water
MTL4.61Mean Tide Level
MSL4.72Mean Sea Level
DTL4.27Mean Diurnal Tide Level
MLW-0.70Mean Low Water
MLLW-2.25Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT13.03Great Diurnal Range
MN10.62Mean Range of Tide
DHQ0.87Mean Diurnal High Water Inequality
DLQ1.54Mean Diurnal Low Water Inequality
HWI9.82Greenwich High Water Interval (in hours)
LWI3.65Greenwich Low Water Interval (in hours)
MaximumHighest Observed Water Level
Max Date & Time Highest Observed Water Level Date and Time
MinimumLowest Observed Water Level
Min Date & Time Lowest Observed Water Level Date and 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
04/03/2002 - 05/25/2002
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 9451853 Sergius Narrows, AK

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