Datums for 9449982, Richardson WA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9449982, Richardson, WA
Status: Superseded (Apr 17 2003) (Accepted Jun 26 2000)
Units: Feet
Control Station: 9449880 Friday Harbor, WA
T.M.: 120
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW7.16Mean Higher-High Water
MHW6.59Mean High Water
MTL4.40Mean Tide Level
MSL4.30Mean Sea Level
DTL3.58Mean Diurnal Tide Level
MLW2.21Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-3.06Station Datum
GT7.15Great Diurnal Range
MN4.38Mean Range of Tide
DHQ0.57Mean Diurnal High Water Inequality
DLQ2.21Mean Diurnal Low Water Inequality
HWI11.84Greenwich High Water Interval (in hours)
LWI5.51Greenwich Low Water Interval (in hours)
Max Tide9.69Highest Observed Tide
Max Tide Date & Time12/16/1997 14:36Highest Observed Tide Date & Time
Min Tide-3.74Lowest Observed Tide
Min Tide Date & Time12/24/1999 06:12Lowest Observed Tide Date & Time
HAT8.64Highest Astronomical Tide
HAT Date & Time12/22/2007 20:06HAT Date and Time
LAT-3.86Lowest Astronomical Tide
LAT Date & Time06/15/2026 17:36LAT Date and Time
Tidal Datum Analysis Periods
07/01/1997 - 04/30/2000




Products available at 9449982 Richardson, WA