equinoctial tide

equinoctial tide

[‚ē·kwə′näk·shəl ′tīd]
(oceanography)
A tide occurring near an equinox.
References in periodicals archive ?
Lawrence occur at mid-year and at year end, contradicting the age-old notion that equinoctial tides (March and September) will be the larger tides.
Plinys oft quoted statement probably accounts for the assumption by most oceanographers that the so-called equinoctial tides (March and September) reach higher levels than tides close to the solstices (June and December).
The definition of tide type #1 implies that equinoctial tides are in a way special, but this rule is in no way universal.