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Datums for 9448558, LA CONNER, SWINOMISH SLOUGH WA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9448558, LA CONNER, SWINOMISH SLOUGH, WA
Status: Accepted (Jul 9 2004)
Units: Feet
Control Station: 9447130 Seattle, WA
T.M.: 120
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW10.35Mean Higher-High Water
MHW9.43Mean High Water
MTL6.06Mean Tide Level
MSL5.96Mean Sea Level
DTL5.18Mean Diurnal Tide Level
MLW2.70Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-4.50Station 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)
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
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