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Datums for 9452368, SWANSON HARBOR AK


Elevations on Station Datum

Station: 9452368, SWANSON HARBOR, AK
Status: Accepted (Jun 11 2014)
Units: Feet
T.M.: 135
Epoch: 2007-2011
Datum: STND
DatumValueDescription
MHHW18.25Mean Higher-High Water
MHW17.23Mean High Water
MTL10.88Mean Tide Level
MSL10.97Mean Sea Level
DTL10.60Mean Diurnal Tide Level
MLW4.53Mean Low Water
MLLW2.95Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT15.30Great Diurnal Range
MN12.70Mean Range of Tide
DHQ1.02Mean Diurnal High Water Inequality
DLQ1.58Mean Diurnal Low Water Inequality
HWI9.75Greenwich High Water Interval (in hours)
LWI3.47Greenwich 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
10/01/1986 - 10/31/1986




Products available at 9452368 SWANSON HARBOR, AK

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