Attention Deficit Disorder Prosthetic Memory Program

Tidal Bore

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Tidal Bore - © Attention Deficit Disorder Prosthetic Memory Program
Tidal Bore - © Attention Deficit Disorder Prosthetic Memory Program

A tidal bore, 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 against the direction of the river or bay’s current.

Tidal bores can be dangerous. Certain rivers such as the Seine in France, the Petitcodiac River in Canada, and the Colorado River in Mexico to name a few, have had a sinister reputation in association with tidal bores. In China, despite warning signs erected along the banks of the Qiantang River, a number of fatalities occur each year by people who take too much risk with the bore. The tidal bores affect the shipping and navigation in the estuarine zone, for example, in Papua New Guinea (Fly and Bamu Rivers), Malaysia (Benak at Batang Lupar), and India (Hoogly bore).

On the other hand, tidal bore-affected estuaries are rich feeding zones and breeding grounds of several forms of wildlife. The estuarine zones are the spawning and breeding grounds of several native fish species, while the aeration induced by the tidal bore contributes to the abundant growth of many species of fish and shrimps (for example in the Rokan River). The tidal bores also provide opportunity for recreational inland surfing.

Pavarotti in Hyde Park - © Attention Deficit Disorder Prosthetic Memory Program
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Pavarotti in Hyde Park
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Pigeon Photography
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Geologic Calendar
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Expo’70 Osaka Demonstration Robot
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