Datums for 9761115, Barbuda Antigua and Barbuda

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: 9761115, Barbuda, Antigua and Barbuda
Status: Accepted (Sep 11 2017)
Units: Feet
Control Station: 9751401 Lime Tree Bay, VI
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
MHHW0.74Mean Higher-High Water
MHW0.72Mean High Water
MTL0.42Mean Tide Level
MSL0.44Mean Sea Level
DTL0.37Mean Diurnal Tide Level
MLW0.12Mean Low Water
MLLW0.00Mean Lower-Low Water
STND-27.99Station Datum
GT0.74Great Diurnal Range
MN0.61Mean Range of Tide
DHQ0.02Mean Diurnal High Water Inequality
DLQ0.12Mean Diurnal Low Water Inequality
HWIGreenwich High Water Interval (in hours)
LWIGreenwich Low Water Interval (in hours)
Max Tide1.79Highest Observed Tide
Max Tide Date & Time08/23/2012 00:42Highest Observed Tide Date & Time
Min Tide-0.58Lowest Observed Tide
Min Tide Date & Time12/25/2011 03:42Lowest Observed Tide Date & Time
HAT1.03Highest Astronomical Tide
HAT Date & Time11/07/2006 13:24HAT Date and Time
LAT-0.55Lowest Astronomical Tide
LAT Date & Time01/21/2023 02:54LAT Date and Time
Tidal Datum Analysis Periods
07/01/2011 - 06/30/2012

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