Datums for 9446491, ARLETTA WA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9446491, ARLETTA, WA
Status: Accepted (Jun 25 2004)
Units: Feet
Control Station: 9447130 Seattle, WA
T.M.: 120
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW13.30Mean Higher-High Water
MHW12.40Mean High Water
MTL7.67Mean Tide Level
MSL7.60Mean Sea Level
DTL6.65Mean Diurnal Tide Level
MLW2.95Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-1.49Station Datum
GT13.30Great Diurnal Range
MN9.46Mean Range of Tide
DHQ0.90Mean Diurnal High Water Inequality
DLQ2.95Mean Diurnal Low Water Inequality
HWI0.92Greenwich High Water Interval (in hours)
LWI7.31Greenwich 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
03/01/1978 - 03/31/1978




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