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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.

Elevations on Station Datum

Station: 9469515, Outside Lopp Lagoon, AK
Status: Accepted (Dec 15 2015)
Units: Feet
T.M.: 135
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW57.38Mean Higher-High Water
MHW57.32Mean High Water
MTL56.90Mean Tide Level
MSL56.89Mean Sea Level
DTL56.90Mean Diurnal Tide Level
MLW56.48Mean Low Water
MLLW56.41Mean Lower-Low Water
NAVD88
STND0.00Station 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)
MaximumHighest Observed Water Level
Max Date & Time Highest Observed Water Level Date and Time
MinimumLowest Observed Water Level
Min Date & Time Lowest Observed Water Level Date and 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
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