tidal difference

[′tīd·əl ′dif·rəns]

(oceanography)

The difference in time or height of a high or low water at a subordinate station and at a reference station for which predictions are given in the tide tables; the difference applied to the prediction at the reference station gives the corresponding time or height for the subordinate station.

References in periodicals archive ?

Engineers try to tap tides in two ways: one involves building barrages across tidal estuaries that use tidal differences in sea surface elevation, so that the flowing waters turn turbines in a similar fashion as hydropower installations.

Southampton Varsity research to support huge potential of tidal power

The protection system can span widths of up to 60 metres, sustain large tidal differences and be resistant to wind, currents and corrosion (seawater), according to the statement.

Swiss firm displays port barriers at Navdex

Capt Steve Gobbi, Peel Ports marine director, said: "The Mersey has one of the UK's largest tidal differences at 10m.

A DREDGER FIT FOR THE MERSEYOF THE FUTURE

The smallest tidal differences, called "neap tides," come at the first and third quarters of the lunar month, when the forces exerted by lunar and solar gravity do more to cancel each other.

Spring tide in fall

There are no planned or existing tidal power projects in the United States; in the United States only Alaska and Maine experience the large tidal differences that are necessary to make such plants feasible.

The state of the oceans, part 2: delving deeper into the sea's bounty

Tidal differences of up to 30 feet and the intricately convoluted shoreline of the Korean peninsula's west coast contribute to the existence of extensive and very rich tidal flats.