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Datums for 9469515, Outside Lopp Lagoon AK


NOTICE OF PROVISIONAL DATUM These datums and any data referred to said datum are PROVISIONAL and subject to revision until they have been thoroughly reviewed and received final approval. Subsequent review based on field inspections and additional measurements may result in revisions to the data and datums. Data users are cautioned to consider the conditional nature of this information before using it for critical decisions such as those that concern physical or public safety. Only after meeting all standards for quality control assurance will the datums be classified as Accepted Datums.
NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9469515, Outside Lopp Lagoon, AK
Status: Accepted (Dec 15 2015)
Units: Feet
Control Station: 9491094 Red Dog Dock, AK
T.M.: 135
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW0.97Mean Higher-High Water
MHW0.91Mean High Water
MTL0.49Mean Tide Level
MSL0.48Mean Sea Level
DTL0.49Mean Diurnal Tide Level
MLW0.07Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-56.41Station Datum
GT0.96Great Diurnal Range
MN0.83Mean Range of Tide
DHQ0.06Mean Diurnal High Water Inequality
DLQ0.07Mean Diurnal Low Water Inequality
HWI7.70Greenwich High Water Interval (in hours)
LWI1.42Greenwich 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
06/29/2015 - 07/28/2015




Products available at 9469515 Outside Lopp Lagoon, AK

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