Perigean tides

Related to Perigean tides: apogean tides
those spring tides which occur soon after the moon passes her perigee.

See also: Perigean

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The perigean tides' effect on the number of icebergs really was incidental.
A supermoon or perigee full Moon brings with it extra-high "perigean tides".
Overlapping of the cycles of spring and perigean tides every 206 days results in an annual progression of 1.5 months in the periods of especially high tides.
These so-called perigean tides recur every anomalistic month of 27.555 days.
Consequently, the tidal variations caused by once-monthly so-called perigean tides are much more prominent.
While in most waters, the largest tides occur in the same part of the year, in the Bay of Fundy they are more influenced by the shifting coincidence of spring and perigean tides with the result that each year they occur about 47 days later than in the previous year.
24, perigean tides at Herring Cove in 1998 coincided with one of the month's set of spring tides around 19 February.
The 206-day cycle of perigean tides coincident with spring tides occurs all over the world, but it is far more pronounced (and far more important) in the Bay of Fundy because of the great tidal range.
A 13th-century treatise described spring tides by saying that "when the Sun and Moon are in conjunction, the power of the Moon becomes stronger and the tide increases and becomes strong." The same work referred to perigean tides by observing that when the Moon "approaches the point nearest the Earth, its power increases, and then the rise of the sea is strong." Several treatises associated a period of high tides with the winter solstice and therefore, indirectly, with the time of closest approach between the Earth and the Sun.
Indeed, in this region, high perigean tides levels can be anticipated at intervals of 1 month, 7 months, 4.5 years and 18 years.
Perigean tide. A spring tide occurring monthly when the Moon is at or near perigee of its orbit.