A tidal bore, [1] often simply given as bore in context, is a tidal phenomenon in which the leading edge of the incoming tide forms a wave (or waves) of water that travels up a river or narrow bay, reversing the direction of the river or bay's current. It is a strong tide that pushes up the river, against the current.

A tidal bore is a tidal phenomenon in which the leading edge of the incoming tide forms a standing wave of water that travels upstream, against the current of a river or narrow bay. The word bore derives through Old English from the Old Norse word bara, meaning a wave or swell.

tidal bore, body of water that, during exceptionally high sea tides, rushes up some rivers and estuaries near a coast where there is a large tidal range and the incoming tide is confined to a narrow channel.

2023年10月19日 · The tidal bore, called the pororoca, is so strong that the Amazon does not have a delta. Its sediment is emptied directly into the Atlantic and carried away by fast-moving currents. Tides are stable and can be predicted.

Turnagain's back-tracking waves are a well-known example of bore tides, also known as "tidal bores" or just "bores." While this phenomenon has been seen at numerous locales around the world, it requires a very specific set of conditions.

2018年10月25日 · A tidal bore is a tidal phenomenon that sends waves up a river against its natural direction of flow. Learn more about what causes tidal bores and where this occurs.

Tidal bores occur during flood tides when the tide is flowing towards land, often upstream. To an observer on the bank, an approaching tidal bore looks like a turbulent wave or “wall” of water that suddenly raises the water level.

A tidal bore, also known as a surge, is a massive and often single wave caused by the constriction of an incoming spring tide as it gets funneled up a narrow and shallow river.

2016年1月1日 · A tidal bore is a positive surge of tidal origin that may occur in an estuary when the tidal flow turns to rising; the existence of a tidal bore is linked with a large tidal range, an estuarine bathymetry that amplifies the tidal wave and a low freshwater level.

A tidal bore occurs along a coast where a river empties into an ocean or sea. A strong tide that pushes up the river is the tidal bore. This article will briefly throw light on the natural phenomenon known as a tidal bore.