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Datums for 9454721, PERRY ISLAND (SOUTH BAY) AK


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9454721, PERRY ISLAND (SOUTH BAY), AK
Status: Accepted (Jun 8 2011)
Units: Feet
Control Station: 9454240 Valdez, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW11.95Mean Higher-High Water
MHW11.00Mean High Water
MTL6.24Mean Tide Level
MSL6.36Mean Sea Level
DTL5.98Mean Diurnal Tide Level
MLW1.48Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND1.33Station Datum
GT11.95Great Diurnal Range
MN9.53Mean Range of Tide
DHQ0.95Mean Diurnal High Water Inequality
DLQ1.48Mean Diurnal Low Water Inequality
HWI10.03Greenwich High Water Interval (in hours)
LWI3.74Greenwich 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
09/01/1995 - 10/31/1995




Products available at 9454721 PERRY ISLAND (SOUTH BAY), AK

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services