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Datums for 9448558, LA CONNER, SWINOMISH SLOUGH WA


Elevations on Station Datum

Station: 9448558, LA CONNER, SWINOMISH SLOUGH, WA
Status: Accepted (Jul 9 2004)
Units: Feet
T.M.: 120
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW14.85Mean Higher-High Water
MHW13.93Mean High Water
MTL10.56Mean Tide Level
MSL10.46Mean Sea Level
DTL9.68Mean Diurnal Tide Level
MLW7.20Mean Low Water
MLLW4.50Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT10.35Great Diurnal Range
MN6.73Mean Range of Tide
DHQ0.92Mean Diurnal High Water Inequality
DLQ2.70Mean Diurnal Low Water Inequality
HWI0.75Greenwich High Water Interval (in hours)
LWI7.29Greenwich 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
12/01/1972 - 01/31/1973
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 9448558 LA CONNER, SWINOMISH SLOUGH, WA

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