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* The tidal bore – a wall or undulating wave of water moves upstream against water flowing downstream as shown in Figures 3 and 4.
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Some Related Sentences
tidal and bore
Waves suitable for surfing are found primarily in the ocean, but can occur in some lakes, or in rivers in the form a of a standing wave or tidal bore.
The once-popular term derives from their most common appearance, which is that of an extraordinarily high tidal bore.
Except for the very largest tsunamis, the approaching wave does not break, but rather appears like a fast-moving tidal bore.
The Garonne is one of the few rivers in the world that exhibit a tidal bore.
Surfers and jet skiers could ride the tidal bore at least as far as the village of Cambes, from the Atlantic and even further upstream, although the tidal bore appears and disappears in response to changes in the channel bathymmetry.
A striking feature of the present field data set was the large and rapid fluctuations in turbulent velocities and turbulent stresses during the tidal bore and flood flow.
Some types of tidal bore, a wave phenomenon of a few rivers including the River Severn, are ' undular ': a wavefront followed by a train of solitons.
The Severn bore is a tidal bore seen on the tidal reaches of the River Severn in England.
The Severn bore is not a self-reinforcing solitary wave or soliton but rather a shock wave which is formed because the wave is travelling faster than the wave speed in water above the Bore ( see tidal bore for more details ).
A very strong tidal bore or wave runs up the estuary of the Meghna at spring tides, and a singular sound like thunder, known as the Barisal guns, is often heard far out at sea, about the time it is coming in.
The Salmon River tidal bore October 22, 2009.
Another phenomenon which occurs in these rivers of the upper bay is a " tidal bore ", where a wave front of water " bores " its way up a river against its normal flow.
One of the better examples of a tidal bore can be seen on the Shubenacadie River near the town of Truro and the village of Maitland, where local ecotourism operators offer the chance to experience rafting the bore upriver.
Another good example of a tidal bore may be viewed on the Salmon River in the town of Truro.
After running dye tests in the bore hole, they concluded that the flooding was caused by a natural interaction between the island's freshwater lens and tidal pressures in the underlying geology, refuting the idea of artificially constructed flood tunnels.
* A tidal bore, which is a large movement of water formed by the funnelling of the incoming tide into a river or narrow bay
" The delta and estuary of the Colorado River were once also subjected to a major tidal bore that has almost disappeared with reductions in river flow and some dredging of the estuary channel.
tidal and –
The conservation of angular momentum in Earth – Moon system results in the transfer of angular momentum from Earth to Moon ( due to tidal torque the Moon exerts on the Earth ).
At that time, the orbit of Shoemaker – Levy 9 passed within Jupiter's Roche limit, and Jupiter's tidal forces had acted to pull the comet apart.
A diagram of the Earth – Moon system showing how the tidal bulge is pushed ahead by the Earth's rotation.
Because of this offset, a portion of the gravitational pull between Earth's tidal bulges and the Moon is perpendicular to the Earth – Moon line, i. e. there exists a torque between the Earth and the Moon.
* January 7 – The moat at the Tower of London, previously drained in 1843 ( and planted with grass ), is completely refilled by a tidal wave.
* July 5 – Isaac Newton publishes Philosophiæ Naturalis Principia Mathematica, ushering in a tidal wave of changes in thought that would significantly accelerate the already ongoing scientific revolution by giving it tools that produced technologically valuable results, which had theretofore been otherwise unobtainable.
* 1849 – Édouard Roche finds the limiting radius of tidal destruction and tidal creation for a body held together only by its self gravity, called the Roche limit, and uses it to explain why Saturn's rings do not condense into a satellite
The once-famous tidal bores on the Petitcodiac and Avon rivers have been severely disrupted as a result of causeway construction in the 1960s – 1970s which have caused excessive siltation.
Navigation in the strait can be extremely hazardous with strong tidal currents interacting with the Labrador Current, depths reaching several hundred metres in places, sea ice for 8 – 10 months of the year, and variable weather conditions including gales and fog.
* Shot buoy – used to mark dive sites for the boat safety cover of scuba divers so that the divers can descend to the dive site more easily in conditions of low visibility or tidal currents and more safely do decompression stops on their ascent
In a tidal delta, new distributaries are formed during times when there's a lot of water around – such as floods or storm surges.
The tidal range is moderate at 1. 5 – 2 m in range.
Figure 3 shows a tidal bore with the characteristics common to shallow upstream water – a large elevation difference is observed.
Figure 4 shows a tidal bore with the characteristics common to deep upstream water – a small elevation difference is observed and the wavefront undulates.
Coasts are classified into three groups based on tidal range: microtidal, 0 – 2 meter tidal range ; mesotidal, 2 – 4 meter tidal range ; and macrotidal, > 4 meter tidal range.
The world's first commercial-scale and grid-connected tidal stream generator – SeaGen – in Strangford Lough.
tidal and wall
Behind the sea wall, the marshes were drained after the war, and reverted to farmland, but the bank was breached in the North Sea flood of 1953, returning the whole area to tidal saltmarsh dominated by sea aster.
Subsequently, the airway pressure drops to zero, and the elastic recoil of the chest wall and lungs push the tidal volume — the breath — out through passive exhalation.
The village was originally a planned town built in 1810 on a tidal quay wall and named at that time " New Glanmire ".
The strong tidal surge following the earthquake caused the battery compartment to crash against the station's outer wall, allowing sea water to flood the station.
The hammerhead, its main attraction along with the coral gardens that form a wall below the tidal flat, has been complemented by the pygmy seahorse, a species endemic to Indonesia but first sighted in the Philippines in Cabilao.
The North Wall is a tidal defence wall which runs for several miles along the banks of the river Humber from Moody Lane in Grimsby along the coast to the offshore oil depot at Immingham.
tidal and wave
On the back nine he began to acquire the tidal wave of a gallery that stayed with him the rest of the tournament.
* The north-west areas of County Mayo have some of the best renewable energy resources in Europe, if not the world, in terms of wind resources, ocean wave, tidal and hydroelectric resources.
Bars are thought to be temporary structures that can occur as a result of a density wave radiating outward from the core, or else due to a tidal interaction with another galaxy.
His contemporary and friend, Braulio of Zaragoza, regarded him as a man raised up by God to save the Iberian peoples from the tidal wave of barbarism that threatened to inundate the ancient civilization of Hispania.
In contrast to Francia, who was lean, López was obese ( a " great tidal wave of human flesh ", according to one who knew him ).
Itaipú had prompted a tidal wave of Brazilian migration in the eastern border region of Paraguay.
Rather than appearing as a breaking wave, a tsunami may instead initially resemble a rapidly rising tide, and for this reason they are often referred to as tidal waves.
Although the meanings of " tidal " include " resembling " or " having the form or character of " the tides, and the term tsunami is no more accurate because tsunami are not limited to harbours, use of the term tidal wave is discouraged by geologists and oceanographers.
Renewable energy sources such as solar photovoltaics, wind, wave, and tidal are, due to their intermittency, not considered " base load " but can still add power to the grid.
The tidal wave sequence had originally been designed by ILM as a physical effect, using a plastic wave, but Cameron was dissatisfied with the end result, and the sequence was scrapped.
Terminator 2 screenwriter and frequent Cameron collaborator William Wisher had a cameo in the scene as a reporter in Santa Monica who catches the first tidal wave on camera.
Oceanographers attribute it to tidal resonance resulting from a coincidence of timing: the time it takes a large wave to go from the mouth of the bay to the inner shore and back is practically the same as the time from one high tide to the next.
0.440 seconds.