Datums for 9432780, Charleston OR


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9432780, Charleston, OR
Status: Accepted (Sep 22 2011)
Units: Feet
Control Station:
T.M.: 120
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW7.62Mean Higher-High Water
MHW6.96Mean High Water
MTL4.11Mean Tide Level
MSL4.08Mean Sea Level
DTL3.81Mean Diurnal Tide Level
MLW1.27Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD880.50North American Vertical Datum of 1988
STND-3.76Station Datum
GT7.62Great Diurnal Range
MN5.69Mean Range of Tide
DHQ0.67Mean Diurnal High Water Inequality
DLQ1.27Mean Diurnal Low Water Inequality
HWI7.92Greenwich High Water Interval (in hours)
LWI1.55Greenwich Low Water Interval (in hours)
Max Tide11.18Highest Observed Tide
Max Tide Date & Time01/26/1983 17:06Highest Observed Tide Date & Time
Min Tide-3.09Lowest Observed Tide
Min Tide Date & Time05/18/2003 15:36Lowest Observed Tide Date & Time
HAT9.74Highest Astronomical Tide
HAT Date & Time12/12/1985 19:24HAT Date and Time
LAT-2.65Lowest Astronomical Tide
LAT Date & Time06/23/1986 14:54LAT Date and Time
Tidal Datum Analysis Periods
01/01/1983 - 04/30/1991
10/01/1991 - 12/31/2001




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