tidal excursion

tidal excursion

[′tīd·əl ik′skər·zhən]
(oceanography)
The net horizontal distance over which a water particle moves during one tidal cycle of flood and ebb; the distances traversed during ebb and flood are rarely equal in nature, since there is usually a layered circulation in an estuary, with a net surface flow in one direction compensated by an opposite flow at depth.
References in periodicals archive ?
A special surveillance zone of overlapping tidal excursion zones has also been established.
Period (Pi) and tidal excursion (Ti) were calculated for each constituent from amplitudes (Ai) and frequencies of the constituents as follows:
The mean current magnitude is dependent on the ratio of the width of the sloping region to the distance that a particle travels in half a tidal cycle (the tidal excursion, approximately 14 kilometers for a tide of 1 meter per second), and is strongest when these two length scales match.
Within the estuary, juvenile white shrimp, in contrast to other penaeid species, are found across a wider range of environmental conditions and habitats (Kutkuhn, 1966) and often make tidal excursions between subtidal and vegetated intertidal habitats to forage (Mayer, 1985; Kneib, 1995; 2000).