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Datums for 9451909, GOOD ISLAND, GAMBIER BAY AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9451909, GOOD ISLAND, GAMBIER BAY, AK
Status: Accepted (Jul 9 2004)
Units: Feet
Control Station: 9450460 Ketchikan, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW15.25Mean Higher-High Water
MHW14.29Mean High Water
MTL7.90Mean Tide Level
MSL7.99Mean Sea Level
DTL7.62Mean Diurnal Tide Level
MLW1.52Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND0.70Station Datum
GT15.25Great Diurnal Range
MN12.77Mean Range of Tide
DHQ0.96Mean Diurnal High Water Inequality
DLQ1.53Mean Diurnal Low Water Inequality
HWI9.75Greenwich High Water Interval (in hours)
LWI3.48Greenwich 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
04/11/1995 - 05/10/1995




Products available at 9451909 GOOD ISLAND, GAMBIER BAY, AK

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services