130 Sentences With "tidal bore" | Random Sentence Generator

That's what I did when I eventually got home and relief rushed over me like a tidal bore.

Nor do they sing there, or write, or argue, or see the tidal bore on the Amazon, or touch their children.

This beast that they will ride is called a tidal bore, a wave that flows in from the ocean and propagates to dozens of rivers around the world.

The waves from the tidal bore can travel many miles inland, Newman said, and "could catch individuals upstream that are unsuspecting and cause damage to piers in the river."

People have been going to the shore of the Qiantang river in Zhejiang for hundreds of years during the Mid-Autumn Festival, to witness the extra-high tidal bore rising up over the harbour.

The next thing I'd do, I'd meet with all the Maritime premiers, and we'd work on harnessing the Bay of Fundy and get free energy out of turbines that run underneath with the tidal bore.

First came the unscrupulous false advertising, then the corrective of investigative journalism; first the tidal bore of broadcast television, then the corrective of the remote control; first the era of spam, then the development of filters and blockers.

What in the World The thundering waves of the Pororoca were legendary: Adventurers from the world over flew, drove, trekked, Jet-Skied and canoed to Brazil's remote Araguari River to ride the Amazon's stunning tidal bore that formed when water flowed in from the Atlantic.

This tidal area extends for approximately along this section and exhibits a tidal bore.

Very high spring tides can generate a tidal bore from Hale as far upstream as Warrington.

King Qian Liu shooting the tidal bore Tidal bore at the Qiantang River The river and Hangzhou Bay are known for the world's largest tidal bore. The oldest known tide table is for the Qiantang River and may have aided ancient travelers wishing to see the famous tidal bore. The tide rushing into the river mouth from the bay causes a bore which can reach up to 9 meters (30 ft) in height, and travel at up to 40 km per hour (25 miles an hour). Known locally as the Silver (or Black) Dragon, the wave sweeps past Hangzhou, menacing shipping in the harbor.

Both Satyajit Ray and Louis Malle helped Vijaya in making her first film – 'The Tidal Bore' (about the 15 feet tidal bore coming from Bay of Bengal like a wall of water on the Hooghly River). Malle sent negative stock from France and Ray voiced the commentary. Government of India selected 'The Tidal Bore' as the official entry to the Mannheim Film Festival. Later Film Federation of India screened the film in theatres across the country.

A recent tidal bore since the opening of the causeway gates measured a wave, unseen for many years.

However, the dredging of the river for the barge may be responsible for a weakening of the tidal bore.

Yanguan tidal bore (2017) The Bay is known for hosting the world's largest tidal bore, up to 9 meters (30 ft) high, and traveling up to per hour. Yanguan Town Tide Viewing Park (观潮胜地公园 Guān cháo shèngdì gōngyuán), on the north shore of Hangzhou Bay some 50 km east of the city of Hangzhou, is regarded as one of the best place to watch the Qiantang River Tidal Bore, especially on the 18th day of the eighth lunar month.

The principal tributaries of the Fly are the Strickland and the Ok Tedi. Close to its mouth, the flow of the Fly River encounters a tidal bore, where an incoming high tide pushes water upstream until the tide changes. The range of this tidal bore is still undocumented.p.159, Barrie R. Bolton. 2009.

Local tourism operators offer adventure seekers a chance to ride with the bore on high-horse power Zodiac Hurricanes. Tidal Bore Rafting was invented at the Tidal Bore Rafting Resort by H. Knoll. It is also a popular surfing spot for experienced Sea Kayakers.Nova Scotia Blogs Bridge over the Shubenacadie River at South Maitland.

Other tributaries include the Save and the Gers. 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 to Cadillac, although the tidal bore appears and disappears in response to changes in the channel bathymetry. In 2010 and 2012, some detailed field studies were conducted in the Garonne's Arcins channel between Arcins Island and the right bank close to Lastrene township.

Historically, there was a tidal bore on the Gulf of California in Mexico at the mouth of the Colorado River. It formed in the estuary about Montague Island and propagated upstream. Once very strong, later diversions of the river for irrigation have weakened the flow of the river to the point the tidal bore has nearly disappeared.

It was called locally 'El Burro' or 'burro'. Today the tidal bore is rarely seen although there are still some anecdotal observations.

The devastating cyclone and tidal bore of 29 April 1991 caused serious damage to the upazila with a death toll of 16705 persons.

Qiantang River Tidal Bore is an important scenic spot of Qiantang River. Generally, around August 15th, Lunar Calendar is the best time to observe the tides. At that time, the largest Qiantang river tidal bore can be several meters. Before the arrival of the sea tide, a tiny white dot appeared in the distance, which turned into a silver thread in a blink of an eye.

In August 2013, the tidal bore turned out stronger than expected due to Typhoon Trami, reaching more than twice its usual height as it broke on the flood barrier, sweeping it and injuring numerous spectators. There have been attempts to surf the tidal bore. The first person to ride the bore was Stuart Matthews from England. The 1988 record was 1.9 km by Stuart Matthews.

A striking feature of the field data sets was the large and rapid fluctuations in turbulent velocities and turbulent stresses during the tidal bore and flood flow.

The shield consists of: a beehive and wheat on the upper half, a locomotive on the lower left, and the Petitcodiac tidal bore on the lower right.

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.

Close-up of a tidal bore on the Petitcodiac River in Moncton. The River exhibits one of North America's few examples of a tidal bore. The Petitcodiac River exhibits one of North America's few tidal bores: a regularly occurring wave that travels up the river on the leading edge of the incoming tide. The bore is as a result of the extreme tides of the Bay of Fundy.

It is a trade center for the timber, oil palm, rubber, and pepper of its mostly agricultural district. Sri Aman is famous for the benak, or tidal bore, of the Batang Lupar River. The tidal bore comes in from the river mouth and fills up the river very rapidly in the course of about 10 minutes. The wave crest at Sri Aman is up to 2 to 3 metres high.

Prior to the mid 20th century, the Colorado River Delta provided a rich estuarine marshland; while today it is now essentially desiccated, the river is still an important salt-water estuary resource. The estuary of the Colorado River was subjected to a major tidal bore that has almost disappeared with the drastic reduction in the freshwater flow following the irrigation diversions of the Colorado River, and to a lesser extent because of some dredging of the estuary channel. The first historical record of the tidal bore was that of the Croatian missionary in Spanish service Father Ferdinand Konščak on 18 July 1746. During spring tide conditions, the tidal bore formed in the estuary about Montague Island and propagated upstream.

The Styx River is wide at its mouth, resulting in a tidal bore at certain times. Much of the river valley remains natural leaving the water quality in a healthy state.

The intertidal zone, the coastal area affected by the tides is about 200 km2 wide. During the highest tide, a tidal bore can be observedless so since the bay has been under restoration work.

A bore in alt= Video of the Arnside Bore, in the United Kingdom The tidal bore in Upper Cook Inlet, in Alaska A tidal bore,Sometimes also known as an aegir, eagre, or eygre in the context of specific instances in Britain. 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.

The city has a land area of 700.5 sq. kilometers and at the 2010 census, had a population of 806,966 inhabitants. Haining is known for its leather industry and spectacular tidal bore in the Qiantang River.

The view is oblique towards the mouth from airplane at approximately altitude.Figure 5 in: A tidal bore may take on various forms, ranging from a single breaking wavefront with a roller – somewhat like a hydraulic jump – to undular bores, comprising a smooth wavefront followed by a train of secondary waves known as whelps. Large bores can be particularly unsafe for shipping but also present opportunities for river surfing. Two key features of a tidal bore are the intense turbulence and turbulent mixing generated during the bore propagation, as well as its rumbling noise.

James Harvie Today, the St. Croix is a popular river for canoe and kayaking enthusiasts.Canoe Kayak Nova Scotia Description of Valley canoe routes The lower floodplains are dyked and farmed. The river's tidal bore may be viewed at Tidal View Farm.

Tourism is an important industry in Moncton and historically owes its origins to the presence of two natural attractions, the tidal bore of the Petitcodiac River (see above) and the optical illusion of Magnetic Hill. The tidal bore was the first phenomenon to become an attraction but the construction of the Petitcodiac causeway in the 1960s effectively extirpated the attraction. Magnetic Hill, on the city's northwest outskirts, is the city's most famous attraction. The Magnetic Hill area includes (in addition to the phenomenon itself), a golf course, major water park, zoo, and an outdoor concert facility.

The visual observations of tidal bores highlight the turbulent nature of the surging waters. The tidal bore induces a strong turbulent mixing in the estuarine zone, and the effects may be felt along considerable distances. The velocity observations indicate a rapid deceleration of the flow associated with the passage of the bore as well as large velocity fluctuations. A tidal bore creates a powerful roar that combines the sounds caused by the turbulence in the bore front and whelps, entrained air bubbles in the bore roller, sediment erosion beneath the bore front and of the banks, scouring of shoals and bars, and impacts on obstacles.

Canoeing on the Dordogne The Dordogne is one of the few rivers in the world that exhibit the phenomenon of a tidal bore, known as a mascaret.Tidal bores, Mascaret, Pororoca (1). Myths, Fables and Reality !!! The upper valley of the Dordogne is a series of deep gorges.

At Selby there is access to the Selby Canal. The river is tidal up to Naburn; the resultant tidal bore is known locally as "the Aegir". At Naburn there is a weir with locks, so that boats of length and beam can reach York.Szyca, G. (2011).

The river is also known, along with Hangzhou Bay, for having the world's largest tidal bore, a phenomenon where 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.

Annual flooding occurs in late northern latitude winter at high tide when the incoming waters of the Atlantic are funnelled into the Amazon delta. The resulting undular tidal bore is called the pororoca, with a leading wave that can be up to high and travel up to inland.

The Baía de São Marcos is a bay of the Atlantic Ocean in Maranhão state of northeastern Brazil. The bay is an estuary approximately long and up to wide. It receives several rivers, including the Grajaú, Mearim, and Pindaré. The Mearim is known for its pororoca, or tidal bore.

Canals with fishing areas are all over the city. The Qiantang river is nearby and often provides an ocean breeze as well as the largest "Tidal Bore" in the world. The river levee is completely paved and a car or bicycle can be ridden for miles on top of it.

Jiashao Bridge, six pylons under construction, along with the northern approach As with the Hangzhou Bay Bridge, the design of the Jiashao had to take into account the raging tidal bore and swift current of the Qiantang River estuary. To roll with the famous Qiantang tidal bore and to reduce the construction risks under difficult hydrologic conditions, the substructure foundation design for the southern and northern bridge approaches called for the elimination of the traditional pile cap and the use of a single pile and flexible column type with a large pile diameter of 3.8m and a very long pile length of 111m. This presented a relatively small water-blocking area for the 150 piles, which had a small influence on hydrology and avoided the risk of cofferdam construction from the tidal bore. For the main six-pylon bridge foundation, the large pile cap was moved down to below the mud surface of the riverbed, thus presenting only the single pylon column tied directly to the pile cap as the water-blocking area of each of the six main pylons of the cable-stayed bridge.

Surface salinity of 0.4% is common around Douala throughout the year. The Mungo river splits into numerous small channels that empty into the estuary complex. The tidal bore in the bay travels as far as up the Mungo. In this section of the river, large flats and sand banks are exposed at low tide.

East Stockwith is a village within the civil parish of East Stockwith, in the West Lindsey district of Lincolnshire, England. It lies on the River Trent, north-west of Gainsborough. The River Trent Aegir, a tidal bore, reaches the village. In 2001 it had a total resident population of 209, increasing to 314 at the 2011 census.

Later on, accompanied by waves of dull thunder, the white line rolled to the sea. In ancient Hangzhou, Phoenix mountain, Jianggan area were the best place to watch. Due to the change of geographical location, from the Ming dynasty, Haining, Hanguan was the first resort for tide observation, so it was also called "Haining Tidal Bore".

In later years, Churchill served as an instructor at the land-air warfare school in Australia, where he became a passionate devotee of the surfboard. Back in Britain, he was the first man to ride the River Severn's five-foot tidal bore and designed his own board. During this time back in Britain, he worked at a desk job in the army.

During the rainy season, much of the island becomes flooded as a large lake. There are 20 large rivers on the island. Because of the changing water levels and regular seasonal flooding, many settlements are built on stilts (Palafitas). The island is known for the pororoca, a tidal bore phenomenon in the river that creates large waves reaching in height.

England also has shores on the Irish Sea, North Sea and Atlantic Ocean. The ports of London, Liverpool, and Newcastle lie on the tidal rivers Thames, Mersey and Tyne respectively. At , the Severn is the longest river flowing through England. It empties into the Bristol Channel and is notable for its Severn Bore (a tidal bore), which can reach in height.

The Invincible arrived at the river mouth on December 25. Captain Wilcox then ascended the river but with difficulty. Invincible drawing 8 feet of water was grounded at every ebb tide which was extreme in the Colorado River Delta. The expedition encountered difficulty in the estuary of the Colorado when the Invincible was nearly sunk by the tidal bore that regularly occurred following the ebb tide there.

In 1874, the Nina Tilden was retired, and tied up at Port Isabel, Sonora following the construction there of the Gila, its replacement in 1873. Soon after she broke her lines during a high tide, was caught broadside to the tidal bore and was capsized, destroying her upper works and blocking the channel of the port. She was chopped up to remove it from the channel.

The river has a tidal bore, similar to that in the River Severn. The Somerset Levels are only a few feet above sea level and liable to flooding. They are drained by ditches and channels that drain into the Parrett including the King's Sedgemoor Drain, just south of the Polden Hills. The River Tone rises in the Brendon Hills, and is dammed near its source to form the Clatworthy Reservoir.

The Maccan River is a small tidal river contained completely within Cumberland County, Nova Scotia. The river terminates at the confluence of River Hebert at Amherst Point, and empties into the Cumberland Basin. The river's tidal bore may be viewed from the Tidal Wetlands Park in Maccan. According to estimates by the Province of Nova Scotia, there are 9,092 people resident within the Maccan/Kelly/Hebert watershed in 2011.

The Kennetcook River is a river that flows through Hants County, Nova Scotia. From headwaters near the mouth of the Shubenacadie River, the Kennetcook traverses about 45 kilometres of mostly rural terrain, discharging into the Avon River at Windsor. The Kennetcook cuts through fossiliferous limestone rocks for part of its length. A tidal river near its mouth, the Kennetcook experiences a tidal bore which may be seen at Scotch Village.

Scientific studies have been carried out at the River Dee in Wales in the United Kingdom, the Garonne and Sélune in France, the Daly River in Australia, and the Qiantang River estuary in China. The force of the tidal bore flow often poses a challenge to scientific measurements, as evidenced by a number of field work incidents in the River Dee, Rio Mearim, Daly River, and Sélune River.

The runoff and precipitation in Qiantang river valley show obvious consistency in both regional distribution and annual variation. The average annual discharge is 2.905×1010 cubic meters, and the average annual sediment discharge is 6.68×10^6 tons. In addition, the annual runoff of the Qiantang River and its tributaries showed significant changes in abundance and drought. Tidal bore is one of the symbolic features of the Qiantang River.

The lower Parrett has a fall of only between Langport and Bridgwater. To the northeast of the River Parrett's mouth, the Bristol Channel becomes the Severn Estuary, which has a tidal range of . The rate and direction of flow of the Parrett is therefore dependent on the state of the tide on the River Severn. In common with the lower reaches of the River Severn, the Parrett experiences a tidal bore.

Living Heritage. History of the Parliamentary Estate: Anglo-Saxon origins Conflictingly, a sign on Southampton city centre's Canute Road reads, "Near this spot AD 1028 Canute reproved his courtiers". Bosham in West Sussex also claims to be the site of this episode, as does Gainsborough in Lincolnshire. As Gainsborough is inland, if the story is true then Canute would have been trying to turn back the tidal bore known as the aegir.

Although it flows through fairly flat country, the Sittaung has a notorious tidal bore at its mouth which has precluded any but very small craft navigating the river. The river is navigable for 40 km year round and for 90 km during three months of the year. The river is used primarily to float timber south for export. Strong currents make the river even less valuable as a means of transport in eastern Burma.

The main valleys between the hills are filled with alluvial deposits from the hills or sea. The county has many small rivers, most of which flow into the Bristol Channel. Many of the latter rivers now have clysts (the local name for a sluice) on them to control the sea, but formerly they were tidal for some way inland. The main exception to this is the River Parrett, which still has a tidal bore.

The Mearim River is a river in Maranhão state of northern Brazil. The river originates in the southern part of Maranhão, and drains north into the Baía de São Marcos, an estuary that also receives the Pindaré and Grajaú rivers, which are sometimes considered tributaries of the Mearim. The lower Mearim is known for its pororoca, or tidal bore. The Mearim is approximately 800 kilometers long, flowing through the marshlands of the Atlantic Coastal Plain.

Today, the island is known for its large water buffalo population, as well as the pororoca tidal bore periodically exhibited by high tides overcoming the usual complex hydrodynamic interactions in the surrounding reaches of Amazon delta. It is the second-largest island in South America, and the 35th largest island in the world. With a land area of Marajó is comparable in size to Switzerland. Its maximum span is long and in perpendicular width.

Tsunami aftermath in Aceh, Indonesia, December 2004. Tsunamis are sometimes referred to as tidal waves. This once-popular term derives from the most common appearance of a tsunami, which is that of an extraordinarily high tidal bore. Tsunamis and tides both produce waves of water that move inland, but in the case of a tsunami, the inland movement of water may be much greater, giving the impression of an incredibly high and forceful tide.

The Araguari River () is the primary river of Amapá state in north-eastern Brazil. It became famous among surfers when some decided to ride its constant tidal bore, characterizing waves that can last for several minutes.Surfers Village "Big-Wave Tow-in surfers on mile-long Pororoca wave" The river flows through the Uatuma-Trombetas moist forests ecoregion. The river defines the western boundary of the Amapá National Forest, a sustainable use conservation unit created in 1989.

The national park boundary then runs along the middle of the river channel. At Arnside, the final bridge is the Furness line railway viaduct. The River Winster flows into the estuary from the north, just before the Kent enters Morecambe Bay, a vast area of intertidal mudflats and sands. The tidal range at the mouth of the river and the shape of the estuary result in a tidal bore occurring near Arnside, which is known as the Arnside Bore.

If that is the case, this section of river can be known as a "tidal freshwater river" or a "river reach." In terms of tides, tidal rivers are classified as microtidal (<2 m), mesotidal (2-4 m), and macrotidal (>4 m). Areas of brackish water seaward of the tidal river section are often called estuaries. A phenomenon commonly associated with tidal rivers is a tidal bore, where a wall of water travels upriver during a flood tide.

Rail traffic often held up car crossings, causing long and often very lengthy waits, which were a part of daily life in the Central Valley until the new bridge was completed. Beneath the bridge's north abutment is an important river-level gauge monitored during the annual Fraser freshet. The bridge is also the location of the end of the Fraser's tidal bore - downstream from the bridge the river is increasingly influenced by tidal influences from the Georgia Strait.

Like the Saint John River, the Bay of Fundy tides causes another upstream phenomenon, known as a tidal bore. The construction of a causeway on the river at Moncton, approximately 50 kilometres upstream, has lessened the tidal bore's effect and changed the river's ecosystem. Other rivers that empty into the Bay of Fundy include the St. Croix River, Digdeguash River, Magaguadavic River, Lepreau River, Musquash River, and Big Salmon River. Bridge across the Miramichi River in northeastern New Brunswick.

Cnut may have performed his unsuccessful attempt to turn the tide back in the River Trent at Gainsborough. Historians believe he may have been demonstrating on the aegir, a tidal bore. He and his supporters may have known Gainsborough was the furthest reach of the aegir, and ideal for his demonstration. However the story was only written down a century later by Henry of Huntingdon, who gives no location, and may have been a myth or a fable.

As the tsunami approaches the coast and the waters become shallow, wave shoaling compresses the wave and its speed decreases below . Its wavelength diminishes to less than and its amplitude grows enormously – in accord with Green's law. Since the wave still has the same very long period, the tsunami may take minutes to reach full height. Except for the very largest tsunamis, the approaching wave does not break, but rather appears like a fast-moving tidal bore.

The low pressure of the cyclone draws greater-than-normal quantities of water into the virtually land-locked Baltic. As the cyclone continues inland, long, low- frequency seiche waves with wavelengths up to several hundred kilometres are established in the Baltic. When the waves reach the narrow and shallow Neva Bay, they become much higher — ultimately flooding the Neva embankments.This behaves in a fashion similar to a tidal bore where incoming tides are funneled into a shallow, narrowing river via a broad bay.

Meanwhile, Mary becomes despondent, thinking Max has abandoned her. On the advice of his therapist, Max finally writes back to Mary and explains he has been diagnosed with Asperger syndrome. Mary is thrilled to hear from him again, and the two continue their correspondence for the next several years. When Noel retires from his job at a tea bag factory, he takes up metal detecting, but is soon swept away (and presumably killed) by a big tidal bore while on a beach.

Chakaria () is an Upazila of Cox's Bazar District in the Division of Chittagong, Bangladesh. Chakaria Upazila (cox's bazar district) with an area of 643.46 km2, is bounded by Lohagara, Banshkhali and Lama upazilas on the north, Cox's Bazar sadar, and ramu upazilas on the south, Lama and naikhongchhari upazilas on the east, maheshkhali and kutubdia upazila on the west. The upazila is surrounded by the Matamuhuri, Bara Matamuhuri, Maheshkhali and Kutubdia Channel. The upazila more often fall victim to cyclone and tidal bore.

Hangzhou Bay Bridge (section) The Hangzhou Bay Bridge is of the cable stayed bridge form. This form was chosen for this project because of the strength of the cable stayed bridge in adverse conditions. The bridge was constructed in the Qiantang River and Yangtze River Deltas and Hangzhou Bay, which all experience some of the highest tidal bore forces on the planet. The location of the bridge is also prone to earthquakes, as well as extremely high winds during typhoon season.

The ebb and flow of the tides produce a cyclical current along the coast, and the strength of this current can be quite dramatic along narrow estuaries. Incoming tides can also produce a tidal bore along a river or narrow bay as the water flow against the current results in a wave on the surface. Tide and Current (Wyban 1992) clearly illustrates the impact of these natural cycles on the lifestyle and livelihood of Native Hawaiians tending coastal fishponds. Aia ke ola ka hana meaning . . .

The Seine is divided into three sections, the lower or Oise section, middle or Paris Section, and upper or Marne section. Ships enter the river at Le Havre through a bad tidal bore. (Victor Hugo's favourite daughter was killed while travelling in a small boat across the bore.) Oceangoing ships can travel to Rouen, where small steamers take on loads for journey further up river. Continuous improvements to the shipping lane meant that regular traffic could be maintained and not just in periods of high water.

Near Sedgwick, the river passes through a rock gorge which produces a number of low waterfalls. This section is popular with kayakers as it offers high quality whitewater for several days after rain. The village of Arnside is situated on the east bank of the Kent estuary, just above Morecambe Bay, and a tidal bore known as the Arnside Bore forms in the estuary at this point on high spring tides. The river has been used as a source of power since at least the 13th century.

So, the phase velocity (propagation velocity relative to still water) of the undulations is just high enough to keep the undulations stationary relative to the bore front. Now, in water waves, the group velocity (which is also the energy-transport velocity) is less than the phase velocity. Therefore, on average, wave energy of the undulations is transported away from the front, and contributing to the energy loss in the region of the front. A related occurrence of positive surges is the tidal bore in estuaries.

The novelty became known as "Magnetic Hill" and was more-or-less an amusing local attraction for residents and visitors to try. Eventually with the rise in tourism after the Second World War, along with local highway construction which saw a "Mountain Road" bypass built further west from Magnetic Hill, the roughly 1 kilometre segment of gravel road became one of Moncton's prime tourist attractions (along with the tidal bore on the Petitcodiac River). Magnetic Hill is now a historic property.Historic Places, of Canada.

Haining is famous for its leather-silhouette show (also known as shadow play), colored lanterns, and tidal bore viewing. Haining began to be inhabited as early as the New Stone Age some 6,000 years ago. During the Spring and Autumn period (770-476BC), it became part of the State of the Wu and then belonged to the State of the Yue before coming under the State of the Chu. In 221BC, during the Qin Dynasty, it fell under the jurisdiction of Changshui County (present-day Jiaxing).

Rusty Long is an explorer, journalist, professional big wave surfer, and photographer. At an early age, he and his brother Greg Long were junior lifeguards as well as surfers in their hometown of San Clemente, California. This led to Rusty's quest for big waves; he has earned the reputation as being one of the most prominent big wave surfers in the world. To add to his big wave accomplishments Rusty has also surfed China's Qiantang River Tidal Bore known as the "Silver Dragon" along with his brother Greg and Mark Healey in September 2008.

The flood tide often begins with a tidal bore especially on large tides with a strong east wind, which has a height of at times, and runs in from the west at a speed of an hour. At low tide, the arm becomes a broad mud flat, cut by the stream channels. Historically small steamers entered and left on high water though the practice is rare at best since most if not all the places that they went are now connected by road. The region adjacent to Turnagain Arm is very rugged.

Among the longest rivers in Nova Scotia is the Shubenacadie, which runs from the Bay of Fundy into Grand Lake in Enfield. This river is one of few worldwide which experience a tidal bore, a visible rush of seawater twice daily during the incoming tide, caused by the funnel shape of the Bay of Fundy and the high tides which are experienced in the region. Gypsum mining is an industry in central Nova Scotia south of the Minas Basin. The world's largest gypsum mine is located at Milford.

The Middle Yeo Surf Life Saving Club swim every weekend of the year and the forthcoming swim times are published in their alcove in Top Beach, Clevedon. The Chester Frosties are an informal facebook group of over 1,000 swimmers who swim all year around Cheshire, Lancashire, Wirral, Merseyside and North Wales. Local specialities include tidal bore and surge swimming on the River Dee. Sheffield Outdoor Plungers are another informal Facebook group of 3,000 swimmers who swim in locations all over the Peak District and Sheffield area, and campaign for better access to waters.

Many exactly solvable models have soliton solutions, including the Korteweg–de Vries equation, the nonlinear Schrödinger equation, the coupled nonlinear Schrödinger equation, and the sine-Gordon equation. The soliton solutions are typically obtained by means of the inverse scattering transform, and owe their stability to the integrability of the field equations. The mathematical theory of these equations is a broad and very active field of mathematical research. 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.

It portrays a tidal bore, in which the incoming tide forms waves that travel up a river or inlet against the current. Hodgson's wood and shingle sculpture, All Fall Down (2009), which was exhibited in Contemporary Sculpture at Chesterwood 2013, likewise alludes to an "uncontrollable body of water that is open-mouthed and ready to consume and inundate anything that comes across its path." Her earliest undulating shingle sculpture, Surge (2003), was among the works in the Flux Art Fair (2016), in which art was positioned throughout the neighborhood in Harlem.

The pagoda was originally constructed by the ruler of the Wuyue Kingdom, whose capital was Hangzhou. The name Liuhe comes from the six Buddhist ordinances and it is said that the reason for building the pagoda was to calm the tidal bore of the Qiantang River and as a navigational aid. However, the pagoda was completely destroyed during warfare in the year 1121. After the current pagoda was constructed of wood and brick during the Southern Song dynasty, additional exterior eaves were added during the Ming (1368–1644) and Qing Dynasties (1644–1911).

Severn Bore Numerous tidal bore waves are known, some of which have also been surfed for several kilometres or more and many kilometres from the ocean, making them the longest rideable waves in the world. They are formed where stronger and larger tides enter a river or deltaic system, allowing the tide to forcefully push and extend up the river, sometimes forming rideable waves. The waves can be singular or multiple crested. They form at specific times of the day, month, and year due to tidal currents, and can be accurately predicted.

The first tide table in China was recorded in 1056 AD primarily for visitors wishing to see the famous tidal bore in the Qiantang River. The first known British tide table is thought to be that of John Wallingford, who died Abbot of St. Albans in 1213, based on high water occurring 48 minutes later each day, and three hours earlier at the Thames mouth than upriver at London.Cartwright, D.E. (1999). Tides, A Scientific History: 11, 18 William Thomson (Lord Kelvin) led the first systematic harmonic analysis of tidal records starting in 1867.

He accurately predicted that Yue would endanger Wu but did not have the ear of Helü's successor Fuchai. He was forced to commit suicide; his body placed in a leather bag and then thrown into a river. After the fall of Wu, Wu Zixu's spirit was worshipped as Taoshen, "God of the Waves",. & and particularly as the god of the Qiantang Tidal Bore at Hangzhou.. Wu Zixu had also been involved with the urban planning of King Helü's capital at Suzhou and is sometimes considered a culture hero credited with inventing the waterwheel.

During their Environmental Impact Assessment in September 2005, AMEC cited recreational fishing and birdwatching as major pre-causeway activities. A fishery for Atlantic salmon existed downstream from the causeway for several years post-1968. The Moncton Naturalists' Club also publishes their Birding in the Moncton Area, a birdwatching guide covering sites from Sackville to Mary's Point. Other activities downstream from the causeway include boating, canoeing, kayaking, seal and harbour-porpoise viewing, and tour boating. On 24 July 2013, the North American record for surfing a single river wave was set by Wessels and Whitbread of California, who rode the Petitcodiac River's tidal bore .

Joseph C. Ives, described it as it was in 1858, in his 1861 Report upon the Colorado river of the West Joseph C. Ives, Report upon the Colorado river of the West, Washington, Government Printing Office, 1861. p.26-27, illustration p.26 The river here was subject to a severe tidal bore that formed in the estuary about Montague Island and propagated upstream and could on occasion swamp barges, boats and ships. By 1865, a better location was found, ships offloaded their cargos on the east bank of the river at Port Isabel, Sonora, northeast of Montague Island.

The Salmon River flows past Stanfield's woolen mills in Truro, Nova ScotiaThe Salmon River is a Canadian river in central Nova Scotia's Colchester County. Rising in the Cobequid Hills in the central-northeastern part of the county, the river descends through a broad glacial valley at the head of Cobequid Bay, the eastern extremity of the Bay of Fundy. The river discharges into the bay at a point between Lower Truro and Lower Onslow, the historic head of navigation. A tidal bore is observed daily on the lower part of the river to the head of the tide at Truro.

Bore hitting the riverbank in 1994 A phenomenon associated with the lower reaches of the Severn is the tidal bore, which forms upstream of the port of Sharpness. It is frequently asserted that the river's estuary, which empties into the Bristol Channel, has the second largest tidal range in the world—, exceeded only by the Bay of Fundy. However a tidal range greater than that of the Severn is recorded from the lesser known Ungava Bay in Canada. During the highest tides, the rising water is funnelled up the Severn estuary into a wave that travels rapidly upstream against the river current.

It is now a Royal Canadian Mounted Police training facility. The waters of the lower Stave are semi-tidal, as the tidal bore on the Fraser River ends farther upstream at Mission City. During the spring freshet of the Fraser the volume and force of that river's flow blocks the Stave, causing it to back up and forming a lake between the Fraser and Ruskin Dam. North of Stave Lake the Stave's valley is intensely mountainous, containing some of the most rugged terrain in the province and also some of its highest rainfalls; access is extremely difficult.

This is one of approximately 48 rivers and estuaries in the world where this phenomenon happens. What is special about Sri Aman's benak is that it occurs everyday, the only river in the world that does that. There is a timetable at the river which has the time and dates for when the tidal bore will occur, but the really big ones occur only a couple of times a year. The author Somerset Maugham almost died at Simanggang during one of these tidal bores, an event commemorated the event in his short story The Yellow Streak.

Satellite picture by alt= Caviana Meridional, the Ilha Caviana Meridional, elonging to the Marajó Archipelago, it is located opposite the north coast of Marajó Island in the delta lowlands at the mouth of the Amazon in the state of Pará, Brazil. The island forms part of the low-lying marajó várzea, the inundated land in and around the mouth of the Amazon River. The island is an excellent place to observe the tidal bore called the pororoca, where the Amazon river waters meet the incoming Atlantic tides and form a standing wave, and is a birdwatchers' haven.

In 1864, the Esmerelda was now owned by the Union Line of Captain Thomas E. Trueworthy. He sent her and the Victoria, a four-masted schooner converted from a barge, under Captain Charles C. Overman, to the Colorado River to establish the Union Line as the opposition line to George A. Johnson & Company there. The Victoria was to be a store ship at the mouth of the river, but she was soon broken up by the tidal bore soon after it reached the mouth of the Colorado in March. After Overman arrived at the river he built the Black Crook, first tow barge to be used on the Colorado River.

The tidal bore tore loose Arno's anchors, driving the ship on a sandbar holing and sinking it in a half-hour with the ship and cargo a total loss. Without the steam engine providing water for washing out the gold at the mine, these American miners used to the plentiful water of California's placers in the north, could not work it profitably and the town soon was mostly abandoned. Only Sonora miners familiar with dry wash techniques stayed and made it pay.Sacramento Daily Union, Volume 17, Number 2500, 1 April 1859 p.5, Col. 2The Times-Picayune, NEW ORLEANS, FRIDAY MORNING, MAY 6, 1859. VOLUME XXIII, NUMBER 88, p.

The ship was built in Greenpoint, Brooklyn as the schooner Mohawk for the millionaire cotton merchant William T. Garner. At 140 feet (42.7 meters) she was the largest racing yacht of her generation. Garner, his wife, and all but 2 passengers and 1 crewman were lost when the yacht capsized in a squall during her maiden voyage in New York Harbor on 20 July 1876 off Stapleton, Staten Island. Mohawk was later raised at a cost of $25,000, and bought for the Coast Survey and renamed Eagre, taking its name from a term for a tidal bore, which is in turn derived from Ægir the Norse god of the sea.

Bores occur in relatively few locations worldwide, usually in areas with a large tidal range (typically more than between high and low tide) and where incoming tides are funneled into a shallow, narrowing river or lake via a broad bay. The funnel-like shape not only increases the tidal range, but it can also decrease the duration of the flood tide, down to a point where the flood appears as a sudden increase in the water level. A tidal bore takes place during the flood tide and never during the ebb tide. Undular bore and whelps near the mouth of Araguari River in northeastern Brazil.

M. R. Siddiqi was also known for his social work. He joined the Lions movement in the then East Pakistan when it was founded in 1958 and became President of Chittagong Lions Club. When a devastating cyclone and tidal bore hit the coastal areas of Chittagong (Halishahar, Kattali and Sitakunda) in 1960, it was under his leadership that a massive relief operation was undertaken, for which he was awarded "The Lions Humanitarian Award", the most prestigious in Lions International, and was also made an honorary "International Counselor". Through his initiative a separate provisional Lions District 305E (Pakistan) was formed in 1962, with him elected as the first District Governor.

Despite the training wall and a mini-lighthouse called 'Apex Light' which is situated at the end of the wall, navigation at Trent Falls is not simple. There are no real waterfalls, but there is a very rapid race of water at difficult stages of the tide (especially spring tides), and there is a tidal bore on the Trent (the Trent Aegir). Boats coming down one river with an ebbing tide often have to wait several hours (sometimes beached on the sand, and sometimes overnight) until the tide turns and the flood can carry them up the other river. The RSPB's Blacktoft Sands nature reserve lies immediately upstream of the Falls, on the south bank of the Ouse.

Caudebec-en-Caux is located W.N.W. of Rouen, on the right bank of the River Seine. The tidal bore in the estuary of the Seine which is known as the mascaret in French, but locally as the barre, used to be well seen at this point. The development of the industrial polder towards Harfleur has changed the geometry of the estuary so that mascaret now seems to be a phenomenon of the past. Since 1977 Caudebec has been served by the Pont de Brotonne, one of three bridges built across the Seine, downstream from Rouen since 1960, to replace the many ferries so making vehicular access between the Pays de Caux and the Autoroute A13 easier.

In one 12-hour tidal cycle, about of water flows in and out of the bay, which is twice as much as the combined total flow of all the rivers of the world over the same period. They are as powerful as 8,000 train engines or 25 million horses. The Annapolis Royal Generating Station, a 20 MW tidal power station on the Annapolis River upstream of Annapolis Royal, is one of the few tidal generating stations in the world, and the only one in North America. Most of the rivers have a tidal bore, a wave front of the incoming tide that "bores" its way up a river against its normal flow.

The Victoria was to be a store ship at the mouth of the river, but she was soon broken up by the tidal bore soon after it reached the mouth of the river at the Colorado River Delta in March 1864. Richard E. Lingenfelter, Steamboats on the Colorado River, 1852-1916, University of Arizona Press, Tucson, 1978 After Overman arrived at the river in March 1864, he built the Black Crook, first tow barge to be used on the Colorado River. From May 1864, its success in delivering large amounts of cargo up river forced the Johnson Company to lower rates, build another steamboat and to add tow barges to his steamboats in 1864.

A high tidal bore carried him across a strait into Lake Cahuilla, a postulated contemporaneous saltwater basin periodically connected to the gulf which was already in the process of drying up permanently. After exploring the lake for several days, Iturbe found himself unable to sail out again, whereupon he beached his craft and made his way back to the nearest Spanish settlement on foot, leaving behind a fortune in black pearls. Sixteenth-century records from New Spain indicate that the De La Cadena family had a pearl-diving monopoly in Baja California. Iturbe's alleged ship has been seen and lost several times, and there are several stories about it having been looted.

Its upper stretch near the AnhuiJiangxi border is also known as the Xin'an River (, "Newly Peaceful"); its middle stretch through the mountains of Zhejiang is also known as the Fuchun River (, "Abundant Spring River"); and the former name of its lower stretchthe Zhe () or Crooked Rivergave Zhejiang Province its name. Historically, it was first documented in the Classic of Mountains and Seas () as Zhejiang River (), later in Zhuangzi ()as Zhe River (), and in the Water Classic () as Jianjiang River (). All those names probably originate from the language of extinct Baiyue peoples. In the early 18th century, the Kangxi Dictionary () regarded Zhejiang River () as Crooked River for its crooked lower stretch and countercurrent tidal bore.

The Victoria was to be a store ship at the mouth of the river, but she was soon broken up by the tidal bore soon after it reached the mouth of the Colorado in March. After Overman arrived at the river mouth he built the Black Crook, first tow barge to be used on the Colorado River. Of a type commonly used on the San Francisco Bay and Sacramento River and its tributaries, the barge was 128 x 28 feet capable of carrying 100 tons of freight. These barges were towed on a 100-foot cable secured to a short mast atop the steamboat amid-ship to avoid fouling with the stern-wheel.

The wind direction out at sea is of more significance than the local air-flow. Being the onset of the flood tide, the bore is accompanied by a rapid rise in water level which continues for about one and a half hours after the bore has passed. 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). The passing of the bore causes a churning of the water, and the myriads of tiny bubbles popping contributes much of the roaring sound made by the bore.

In the process, various other railroads all became involved in the bridging scheme: the Canadian Northern Railway, Milwaukee Road, and the Pacific Great Eastern Railway. The bridge itself would be owned by the Federal Government as they had control of harbours and shipping, and would lease access to the railways as they did with the rail bridge in New Westminster. One of the main reasons was that there was very little space on the south shore for wharves, thus railways wanted to develop the North Shore as the south side was occupied by another railway, the Canadian Pacific. A company was floated, the Burrard Inlet Bridge and Tunnel Company, and contracts were issued to span the tidal bore.

The original Second Narrows Bridge was constructed in 1925, and was the first bridge to connect Vancouver with the North Shore over the tidal bore of the narrows. This bridge was constructed, by John Stewart and Northern Construction, with a car deck and a year later in 1926 trains began using the bridge as well. After being hit by a number of ships and being out of service for 4 years, in 1933 the provincial government bought the bridge and installed a lift section of the deck. In 1960, a new much larger and higher 6-lane Second Narrows Bridge with a span was completed alongside the original bridge, and the original bridge was converted exclusively for rail use.

The Petitcodiac River tidal bores—retrograde waves moving upstream over downstream waves—occur twice a day and come from the world's highest tides in the Bay of Fundy. The first European mention of the bore was by British Lieutenant Colonel George Scott on 17 November 1758, during a downstream voyage from Moncton to Fort Frederick, near Saint John. The Admiralty referred to the tidal bore in a hydrographic chart published in 1861, observing that "[after] its passage the rise of the tide is very rapid until high water is attained", and that "[during the lowest tides] the Bore still appears but its broken front usually is only a few inches high." The bores ranged from in height, with speeds from .

However, a study by the PWMG showed that fecal coliform levels in the headpond from June, July, and September 2009 exceeded 2,419 parts per 100 millilitres; more than 12 times the 200/100 ml recommended by the Canadian Water Quality Guidelines for recreational purposes. Bore Park, located in the area formerly known as La Chapelle, became a popular tourist location by 1907 for watching the Petitcodiac's tidal bore move up the river twice a day. The area features information about the wave, as well as a clock indicating the time of its next appearance. Bore Park is a part of Riverfront Park, Greater Moncton's section of the Trans Canada Trail, where tourists may walk, bike, or skate along the riverfront.

Colorado No. 2, built 1862, in the tidal dry dock at the former settlement of Port Isabel. Port Isabel was a seaport established on Port Isabel Slough in 1865 during the American Civil War in Sonora, Mexico in the mouth of the Colorado River on the Gulf of California. It was founded to support the increased river traffic caused by the gold rush that began in 1862 on the Colorado River and the Yuma Quartermaster Depot newly established in 1864 to support the Army posts in the Arizona Military District. The slough was discovered in 1865 by the Captain W. H. Pierson of the schooner Isabel, that first used the slough to transfer its cargo to steamboats safe from the tidal bore of the Colorado River.

However, Chemulpo, with its wide tidal bore, extensive mudflats, and narrow, winding channels, posed a number of tactical challenges for both attackers and defenders. The Japanese protected cruiser had been based at Chemulpo for the past 10 months, and had been keeping watch on the Russian protected cruiser and the aging gunboat , also based at Chemulpo to look after Russian interests. After the Russian transport Sungari arrived at Chemulpo on 7 February 1904, reporting the sighting of a large Japanese force approaching, the gunboat Korietz was ordered to Port Arthur to report and request instructions. In the early morning of 8 February, Korietz spotted Chiyoda outside the Chemulpo roadstead, and mistaking it for a fellow Russian ship, loaded its guns for a salute.

In 1961, Jean Délémontez designed a two-seat light aircraft for the Société Aeronautique Normande (SAN) at Bernay in Normandy to replace his earlier Jodel D.11, which SAN (amongst other manufacturers) were building to meet a requirement for aircraft to equip flying clubs subsidised by the French government. Délémontez based the new design on his three–four seat Jodel Ambassadeur, (also being built by SAN), with a reduced span wing and shorter fuselage. The new aircraft, the D.150 Mascaret - named after a tidal bore first flew on 2 June 1962, production beginning in 1963. Like all the light aircraft that Délémontez designed under the Jodel and Robin names, the D.150 is a low-winged monoplane of wooden construction, with distinctive upturned outer wings.

All the rivers in the district were subject to tidal action from the Meghna on the north, and from the Bay of Bengal on the south, and nearly all of them are navigable at high tide by country boats of all sizes. The rise of the tide was very considerable in the estuary of the Meghna, and many of the creeks and water-courses in the island of Dakshin Shahbazpur, which are almost dry at ebb tide, contain of water at the flood. A very strong tidal bore or wave ran up the estuary of the Meghna at spring tides, and a singular sound like thunder, known as the Barisal guns, was often heard far out at sea, about the time the tidal wave was coming in.

When the British withdrew in 1947, after creating the independent states of India and Pakistan, Sitakunda became a part of East Pakistan. The potential for a ship breaking industry first appeared in 1964 when Chittagong Steel House started scrapping MD Alpince, a Greek ship that had been accidentally beached near Fouzdarhat by a tidal bore four years earlier. On 15 February 1950, Hindu pilgrims form all over East Bengal, Tripura and Assam arriving for Maha Shivaratri were attacked by the Ansars and armed Muslim mobs and massacred at the Sitakunda railway station. During the Bangladesh Liberation War of 1971, Sitakunda was part of Sector 1, led by Ziaur Rahman and Major Rafiqul Islam of the Mukti Bahini, the forces fighting for the independence of Bangladesh.

It is joined by the Panjnad at Mithankot. Beyond this confluence, the river, at one time, was named the Satnad River (sat = "seven", nadī = "river"), as the river now carried the waters of the Kabul River, the Indus River and the five Punjab rivers. Passing by Jamshoro, it ends in a large delta to the South of Thatta in the Sindh province of Pakistan The Indus is one of the few rivers in the world to exhibit a tidal bore. The Indus system is largely fed by the snows and glaciers of the Himalayas, Karakoram and the Hindu Kush ranges of Tibet, the Indian states and union territories of Ladakh and Himachal Pradesh and the Gilgit-Baltistan region of Pakistan.

Bore hitting the riverbank in 1994 Parts of the River Severn affected by the bore The Severn bore is a tidal bore seen on the tidal reaches of the River Severn in south western England. It is formed when the rising tide moves into the funnel-shaped Bristol Channel and Severn Estuary and the surging water forces its way upstream in a series of waves, as far as Gloucester and beyond. The bore behaves differently in different stretches of the river; in the lower, wider parts it is more noticeable in the deep channels as a slight roller, while the water creeps across the sand and mudflats. In the narrower, upper reaches, the river occupies the whole area between its banks and the bore advances in a series of waves that move upstream.

The Shubenacadie River is a river in Nova Scotia, Canada. It has a meander length of approximately 72 kmColumbia Gazetteer from its source at Shubenacadie Grand Lake to its mouth at the historic seaport village of Maitland on Cobequid Bay, site of the building of the William D. Lawrence, the largest wooden ship ever built in Canada. In 2009, the I Backpack Canada blog named the Shubenacadie one of the top five whitewater rivers in Canada.Blog, "Top 5 Rivers for White Water Rafting in Canada", repeated at Lonely Planet, November 8, 2009 The lower 30 km of the river (from the point where the Stewiacke River meets to the mouth) is tidal and the river experiences a tidal bore twice daily, with some bores reaching up to 3 m in height at certain points along the river.

Until the Great Flood of 1862, what became Port Isabel Slough was a shallow tidewater slough, but the extreme flood waters of that year cut its channel much deeper, so that at low tide it still was three fathoms deep. The mouth of this slough was only 5 miles from the mouth of the river and 2 miles east of the main river at Philips Point, in the 1870s located at , marking the head of the eastern dis-tributary channel of the Colorado, separated by from the main river and the Gulf of California by Montague Island and Gore Island. The slough was sheltered from the extremes of the tidal bore of the Colorado River and deep enough to prevent stranding on shoals or mud flats at low tide. The Arizona Sentinel, 1882-01-14, p.

The main destinations of the gas pipelines are to Kenai where the gas is primarily used to fuel commercial fertilizer production and a liquified natural gas (LNG) plant and to Anchorage where the gas is consumed largely for domestic uses. Alaska has approximately half the known coal reserves in the U.S. For decades, there has been a proposal to build a large coal mine (the Chuitna Coal Mine) on the west side of Cook Inlet near the Chuitna River, and the native village of Tyonek, Alaska. American Rivers has placed the Chuitna River on its list of the 10 most endangered rivers for 2007, based on the threat of this mine. bore appears as a wall of turbulent water Turnagain Arm is one of only about 60 bodies of water worldwide to exhibit a tidal bore.

Until the Great Flood of 1862, what became Port Isabel Slough, in Sonora, Mexico, was a shallow tidewater slough, but the extreme flood waters of that year cut its channel much deeper, so that at low tide it still was three fathoms deep. The mouth of this slough was only from the mouth of the river and sheltered from the extremes of the tidal bore of the Colorado River and deep enough to prevent stranding on shoals or mud flats at low tide. This made it an ideal anchorage for maritime craft to load and unload their cargo and passengers from the steamboats that took them up and down river without the danger from the tides that they were having to risk in the estuary at Robinson's Landing. In the month of March 1865, the schooner Isabel, from San Francisco, commanded by W. H. Pierson, found and entered this slough and discharged her cargo there for the first time.

The Uncle Sam would be the first of many steamboats on the Colorado River. After arriving in early September, the Capacity then had to wait longer than expected, over two months, in the anchorage in the estuary of the river until the Uncle Sam was built and launched in mid-November and then again waited four more months to empty its hold of the Army supplies. The anchorage was a trial for a ship anchored in that location, subject to extreme tides that left the ship stranded at low tide and struck by a 4 to 6 foot tidal bore when the tide came back in twice a day. The long wait was due to the limited 35 ton cargo capacity and the weakness of the 20hp engine of the tug when pitted against the strong down stream current of the Colorado, that made a round trip to and from its destination at Fort Yuma take 12 days each.

12, 143) A day later, Cadamosto discovered a great river (grandissimo fiume), which they named Rio Grande (the Geba River – more precisely, the wide estuary it forms together with the Corubal River, it doesn't seem they actually entered the river itself) ().Although not seeming to witness the famous macareo or tidal bore of the Geba River, Cadamosto does refer to the asymmetry of the tide (4 hours rising, 8 hours falling) and the incredible strength of the current at the beginning of high tide, that even three anchors could barely hold the ship in place. After anchoring near the southern bank of the estuary, they were approached by a couple of long native canoes from the mainland (no identification given, probably Balantas or Biafares)Curiously, Cadamosto notes that the native canoes approached their ships holding up a white flag as a sign of peace – "levorono un fazzuol bianco, alto ligato ad un remo, quasi a mode di dimandar segurta'" (Cadamosto, Ital: p.120). It is probably a coincidence.

Geneva: Droz, 2006, , pages 182/183 It is noteworthy that no new legions were raised by Trajan before the Parthian campaign, maybe because the sources of new citizen recruits were already over- exploited. As far as the sources allow a description of this campaign, it seems that one Roman division crossed the Tigris into Adiabene, sweeping south and capturing Adenystrae; a second followed the river south, capturing Babylon; Trajan himself sailed down the Euphrates from Dura-Europoswhere a triumphal arch was erected in his honourthrough Ozogardana, where he erected a "tribunal" still to be seen at the time of Julian the Apostate's campaigns in the same area. Having come to the narrow strip of land between the Euphrates and the Tigris, he then dragged his fleet overland into the Tigris, capturing Seleucia and finally the Parthian capital of Ctesiphon. He continued southward to the Persian Gulf, when, after escaping with his fleet a tidal bore on the Tigris,Longden, "Notes on the Parthian Campaigns", 8 he received the submission of Athambelus, the ruler of Charax.

Geneva: Droz, 2006, , pages 182/183 It is noteworthy that no new legions were raised by Trajan before the Parthian campaign, maybe because the sources of new citizen recruits were already over- exploited. As far as the sources allow a description of this campaign, it seems that one Roman division crossed the Tigris into Adiabene, sweeping south and capturing Adenystrae; a second followed the river south, capturing Babylon; Trajan himself sailed down the Euphrates from Dura-Europoswhere a triumphal arch was erected in his honourthrough Ozogardana, where he erected a "tribunal" still to be seen at the time of Julian the Apostate's campaigns in the same area. Having come to the narrow strip of land between the Euphrates and the Tigris, he then dragged his fleet overland into the Tigris, capturing Seleucia and finally the Parthian capital of Ctesiphon. He continued southward to the Persian Gulf, when, after his fleet escaped a tidal bore on the Tigris,Longden, "Notes on the Parthian Campaigns", 8 he received the submission of Athambelus, the ruler of Charax.