establishment of the port
English
Noun
establishment
of
the
port
(
hydrography
)
A
datum
on which the
tides
are
computed
at the given
port
, obtained by
observation
. It is the
interval
between the
Moon
's passage over the
meridian
and the time of
high water
at the port, on the days of
new moon
and
full moon
.
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