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45-556: The original circuit was built between 1971 and 1977 on the site of the Barra da Tijuca road course, which had itself been built on reclaimed marshland and was operational from 1964 to 1970. It was a relatively flat circuit, with a long pit straight and a longer back straight (which allowed the turbo -engined Formula One cars of the mid-1980s to reach speeds of 300 km/h (190 mph), and numerous mid-speed to slow-speed corners with plenty of room for overtaking. The maximum spectator capacity

90-581: A different set of organisms. Saltwater marshes are found around the world in mid to high latitudes , wherever there are sections of protected coastline. They are located close enough to the shoreline that the motion of the tides affects them, and, sporadically, they are covered with water. They flourish where the rate of sediment buildup is greater than the rate at which the land level is sinking. Salt marshes are dominated by specially adapted rooted vegetation, primarily salt-tolerant grasses. Salt marshes are most commonly found in lagoons , estuaries , and on

135-522: A freshwater marsh, the ocean tides affect this form of marsh. However, without the stresses of salinity at work in its saltwater counterpart, the diversity of the plants and animals that live in and use freshwater tidal marshes is much higher than in salt marshes. The most severe threats to this form of marsh are the increasing size and pollution of the cities surrounding them. Ranging greatly in size and geographic location, freshwater marshes make up North America's most common form of wetland. They are also

180-576: A habitat for many species of plants, animals, and insects that have adapted to living in flooded conditions or other environments. The plants must be able to survive in wet mud with low oxygen levels. Many of these plants, therefore, have aerenchyma , channels within the stem that allow air to move from the leaves into the rooting zone. Marsh plants also tend to have rhizomes for underground storage and reproduction. Common examples include cattails , sedges , papyrus and sawgrass . Aquatic animals, from fish to salamanders , are generally able to live with

225-505: A habitat free from fish, which eat the eggs and young of amphibians. An example is the endangered gopher frog . Similar temporary ponds occur in other world ecosystems, where they may have local names. However, vernal pool can be applied to all such temporary pool ecosystems. Playa lakes are a form of shallow freshwater marsh in the southern high plains of the United States. Like vernal pools, they are only present at certain times of

270-523: A hairpin that connects the previous main straight and back straight. It remained active, with races such as Stock Car's Corrida do Milhão . The track and adjacent motorsport facilities were finally demolished in November 2012 to make way for new facilities to be used during the 2016 Summer Olympics . In March 2013 Bernie Ecclestone, CEO of the Formula One Group, said discussions were taking place for

315-457: A low amount of oxygen in the water. Some can obtain oxygen from the air instead, while others can live indefinitely in conditions of low oxygen. The pH in marshes tends to be neutral to alkaline , as opposed to bogs , where peat accumulates under more acid conditions. Marshes provide habitats for many kinds of invertebrates, fish , amphibians, waterfowl and aquatic mammals. Marshes have extremely high levels of biological production, some of

360-473: A region in the East of England , the embanked marshes are also known as Fens . Some areas have already lost 90% of their wetlands, including marshes. They have been drained to create agricultural land or filled to accommodate urban sprawl . Restoration is returning marshes to the landscape to replace those lost in the past. Restoration can be done on a large scale, such as by allowing rivers to flood naturally in

405-559: A time of 38.565 (280 km/h (170 mph)) for the 3.000 km (1.864 mi) track. The long back straight of the road course which had grandstands running its entire 900 m (980 yd) length became the front straight of the Speedway, with the pits located in the area between the straight and the pit straight of the road course. The circuit also hosted the Rio de Janeiro motorcycle Grand Prix race from 1995 to 2004. Valentino Rossi won

450-416: Is dominated by herbaceous plants rather than by woody plants . More in general, the word can be used for any low-lying and seasonally waterlogged terrain. In Europe and in agricultural literature low-lying meadows that require draining and embanked polderlands are also referred to as marshes or marshland. Marshes can often be found at the edges of lakes and streams, where they form a transition between

495-403: The 1984 and 1985 races were won by Prost, now racing a McLaren - TAG . The 1984 race also saw the debut of Ayrton Senna , driving a Toleman TG183 - Hart where he had the unfortunate 'honour' of being the first retirement of the 1984 season. Piquet won the 1986 race in a Williams FW11 - Honda , with Senna making it a Brazilian 1–2 in a Lotus 98T -Renault, before Prost beat Piquet to win

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540-480: The 1987 race in a McLaren MP4/3 -TAG. After Piquet won his third (and final) World Championship in 1987 , the circuit was named after him in 1988. However, he had to settle for third in a Lotus 100T -Honda in that year's race , as Prost once again won in a McLaren MP4/4 -Honda. 1988 was the last year of the original turbo era in Formula One. For Prost it was his 5th win in 9 races at the circuit. The 1989 race

585-617: The CART series staged events at Jacarepaguá in an accessory trapezoid -shaped speedway named " Emerson Fittipaldi Speedway", having approximately 3.000 km (1.864 mi) length. The race, originally the Rio 400 , before being shortened to the Rio 200 in 1999 , was first won in 1996 by Brazilian André Ribeiro . The circuit qualifying record for the Emerson Fittipaldi Speedway was set by Emerson's own nephew Christian Fittipaldi with

630-583: The FISA–FOCA war , was also shrouded in controversy. Rio born driver Nelson Piquet , who had won the World Championship the year before, finished first in a Brabham BT49 -Ford, with Finland 's Keke Rosberg second in a Williams FW07C-Ford. However, both drivers were disqualified for being underweight, having raced with "water-cooled brakes". This promoted Alain Prost , third in the turbocharged Renault RE30 , to

675-662: The McLaren car who would take out his second win in Brazil. He finished ahead of Keke Rosberg who was in the Williams with de Angelis finishing in third. Elio de Angelis claimed the first pole position of the season in his Lotus - Renault from the Ferrari of Michele Alboreto in his first race for the Prancing Horse . Derek Warwick , in his first race for Renault, was 3rd on the grid with

720-430: The McLaren - TAG of Alain Prost 4th, Prost returning to the team he started his career with after three seasons with Renault. Reigning World Champion (and local favourite) Nelson Piquet qualified 7th in his Brabham - BMW , while another Brazilian, a Formula One rookie by the name of Ayrton Senna qualified 17th for his first ever Grand Prix in his Toleman - Hart . With only 220 litres of fuel allowed, many teams on

765-471: The Brazilian Grand Prix was then held at Jacarepaguá for the remainder of the 1980s. The 1981 race was held in very wet conditions and was again won by Reutemann, this time driving a Williams FW07C -Ford, and in controversial circumstances: he disobeyed the team's orders to let teammate and then-reigning World Champion, Australia 's Alan Jones , take the win. The 1982 race , held at the height of

810-501: The Englishman when he made his second stop for tyres. He regained the lead for good following Warwick's retirement and ran out the winner by 40 seconds from the Williams - Honda of Keke Rosberg and the Lotus of de Angelis. For Rosberg it was his third successive second place in the Brazilian Grand Prix, though it was the only one in which he was not disqualified. Eddie Cheever finish 4th in

855-570: The Formula 1 Grand Prix to move from the Interlagos Circuit in São Paulo to Rio de Janeiro and a suitable time for this could be 2016, coinciding with the 2016 Olympic Games. Formula 1 last raced at Rio in 1989 before returning to São Paulo in 1990, where it has been held since. However, as of 2024 no Grand Prix was held in Rio since then. Marsh In ecology , a marsh is a wetland that

900-500: The McLarens of Niki Lauda 4th and Prost fighting back from a bad start. The Frenchman had bogged down at the green light with too few revs and was only 10th at the end of the first lap (Piquet also made a bad start after almost stalling at the green light and much to the agony of the crowd, was only in 23rd halfway through the first lap). Not having done a practice start in the car, during the warm-up Prost had asked Lauda what revs to use at

945-476: The Renault driver late in the race when running second. Senna was the first retirement of the 1984 season with turbo failure on lap 8. Alboreto's race was ruined by a loose bolt in his car's right front brake caliper which released all the brake fluid and caused the brake to overheat, resulting in a couple of spins and a pit stop where buckets of water were thrown over the brakes in a vain attempt at cooling it. Lauda

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990-983: The aquatic and terrestrial ecosystems . They are often dominated by grasses , rushes or reeds. If woody plants are present they tend to be low-growing shrubs, and the marsh is sometimes called a carr . This form of vegetation is what differentiates marshes from other types of wetland such as swamps , which are dominated by trees , and mires , which are wetlands that have accumulated deposits of acidic peat . Marshes provide habitats for many kinds of invertebrates , fish , amphibians , waterfowl and aquatic mammals . This biological productivity means that marshes contain 0.1% of global sequestered terrestrial carbon . Moreover, they have an outsized influence on climate resilience of coastal areas and waterways, absorbing high tides and other water changes due to extreme weather . Though some marshes are expected to migrate upland, most natural marshlands will be threatened by sea level rise and associated erosion . Marshes provide

1035-406: The car parks of the park. That would have been designed by Hermann Tilke . In January 2008 it was announced that the track was to be demolished to allow the city to build an Olympic Training Centre venue for the Rio de Janeiro bid for the 2016 Summer Olympics which Rio was successful in winning. As of 2008, the 3.336 km (2.073 mi) track comprised the original circuit's second half with

1080-476: The circuit are listed as follows: As of early 2005, there were plans to partially demolish this racetrack to make room for a new sports complex to be used for the 2007 Pan American Games . It would have made the track approximately 3.336 km (2.073 mi) long, thus making it too short for most international racing series. However, the FIA 's ruling on a track's minimum length is ambiguous. In 2006, despite rumors of

1125-464: The circuit in qualifying with a time of 1:25.302 to take pole position in a V10 McLaren MP4/5 -Honda. After winning the race, Mansell joked that with the Ferrari's known reliability problems at the time he had booked an early flight out of Rio in anticipation of a short race for him. In 1990 , the Brazilian Grand Prix moved to a shortened Interlagos, where it has been held ever since. From 1996 to 2000

1170-411: The drivers below Rosberg were not promoted accordingly. The win was the first of two wins at the circuit for Piquet, who would go on to win his second World Championship that year. Piquet won the race in his Brabham - BMW turbo and went on to be the first ever F1 World Champion to be powered by a turbocharged engine. From 1983 until 1989, the Brazilian Grand Prix was the opening race of the season. Both

1215-553: The factory teams of Ferrari , Renault and Alfa Romeo (all who were on the FISA side of the war) boycotted the race and the results were eventually voided, the 1982 San Marino Grand Prix results without the FOCA teams were counted. Piquet and Rosberg again crossed the line first and second in the 1983 race , although this time only Rosberg was disqualified, having had a push start in the pits after his Williams FW08 -Ford caught fire. Unusually,

1260-627: The fringes of large rivers. The different types are produced by factors such as water level, nutrients, ice scour , and waves. Large tracts of tidal marsh have been embanked and artificially drained. They are usually known by the Dutch name of polders . In Northern Germany and Scandinavia they are called Marschland , Marsch or marsk ; in France marais maritime . In the Netherlands and Belgium, they are designated as marine clay districts. In East Anglia ,

1305-454: The grid tried various ways to save fuel from evaporating in the Rio heat. McLaren covered their cars in tin foil while others such as Lotus and Renault attempted to freeze their fuel in order to actually fit more in. The Renault team also had a sophisticated (for 1984) electronic fuel monitoring system which they hoped would give them an advantage over their rivals. Alboreto got the jump at the start and led early from Warwick and de Angelis, with

1350-447: The highest in the world, and therefore are important in supporting fisheries. Marshes also improve water quality by acting as a sink to filter pollutants and sediment from the water that flows through them. Marshes partake in water purification by providing nutrient and pollution consumption. Marshes (and other wetlands) are able to absorb water during periods of heavy rainfall and slowly release it into waterways and therefore reduce

1395-469: The magnitude of flooding. Marshes also provide the services of tourism, recreation, education, and research. Marshes differ depending mainly on their location and salinity . These factors greatly influence the range and scope of animal and plant life that can survive and reproduce in these environments. The three main types of marsh are salt marshes , freshwater tidal marshes , and freshwater marshes . These three can be found worldwide, and each contains

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1440-479: The most diverse of the three types of marsh. Some examples of freshwater marsh types in North America are: Wet meadows occur in shallow lake basins, low-lying depressions, and the land between shallow marshes and upland areas. They also happen on the edges of large lakes and rivers. Wet meadows often have very high plant diversity and high densities of buried seeds. They are regularly flooded but are often dry in

1485-441: The most races, winning four from 2000 to 2003, while Mick Doohan won the 1996 and 1997 races. The first Rio Motorcycle Grand Prix was won by Italian Luca Cadalora , riding a Yamaha YZR500 . The final race held at the circuit in 2004 , was won by Japanese rider Makoto Tamada riding a Honda RC211V . Honda won seven of the nine Rio Grands Prix held, with Yamaha winning two. The fastest official race lap records at

1530-599: The race being cancelled, the Brazilian Stock Car Rio event was contested on a temporary short circuit combining sections of the oval and normal circuits and the start/finish line was moved to the back stretch, which was cut short to make room for the Pan-American games venues. Another proposal for the circuit was to have both a club permanent circuit, and an international-length half-permanent, half-car park circuit involving that circuit and an extension which utilises

1575-591: The revolutionary ground-effect Lotus 78 - Ford . After the 1979 and 1980 races had been held at the Interlagos circuit in São Paulo , the F1 circus left the 7.873 km (4.892 mi) Interlagos circuit due to safety concerns with the circuit and the growing slums of the circuit's surrounding areas being at odds with Formula One's new glamour image. Rio's beaches and beautiful scenery were more suited to this new image, and

1620-463: The sheltered side of a shingle or sandspit . The currents there carry the fine particles around to the quiet side of the spit, and sediment begins to build up. These locations allow the marshes to absorb the excess nutrients from the water running through them before they reach the oceans and estuaries. These marshes are slowly declining. Coastal development and urban sprawl have caused significant loss of these essential habitats. Although considered

1665-495: The spring, or on a small scale by returning wetlands to urban landscapes. 1984 Brazilian Grand Prix The 1984 Brazilian Grand Prix , officially known as the XIII Grande Prêmio Brasil de Fórmula 1 was a Formula One motor race held on 25 March 1984 in Rio de Janeiro . The race was contested over 61 laps of Jacarepaguá Circuit and was the first race of the 1984 Formula One World Championship . This race

1710-546: The start. Lauda told him no less than 10,000 but on the grid Prost felt this was too high and dropped to 8,000 only to find Lauda had been correct. Despite this he was beginning to show the superior race speed which would become the story of the season. Lauda quickly passed de Angelis and when he passed Warwick for 2nd at the end of the back straight on lap 10, the McLaren's right rear hit the Renault's left front tyre. The hit damaged Warwick's suspension, leading to suspension failure for

1755-492: The summer. Vernal pools are a type of marsh found only seasonally in shallow depressions in the land. They can be covered in shallow water, but in the summer and fall, they can be completely dry. In western North America, vernal pools tend to form in open grasslands, whereas in the east, they often occur in forested landscapes. Further south, vernal pools form in pine savannas and flatwoods . Many amphibian species depend upon vernal pools for spring breeding; these ponds provide

1800-536: The win, the first of an eventual five for the Frenchman at the circuit and start a streak of 7 straight wins for turbo powered cars at the circuit until the original turbo era ended following the 1988 season. The disqualifications, however, prompted most FOCA -aligned teams – including Brabham and Williams – to boycott the San Marino Grand Prix two races later. However, unlike the 1980 Spanish Grand Prix where

1845-654: The year and generally have a circular shape. As the playa dries during the summer, conspicuous plant zonation develops along the shoreline. Prairie potholes are found in northern North America, such as the Prairie Pothole Region . Glaciers once covered these landscapes, and as a result, shallow depressions were formed in great numbers. These depressions fill with water in the spring. They provide important breeding habitats for many species of waterfowl. Some pools only occur seasonally, while others retain enough water to be present all year. Many kinds of marsh occur along

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1890-582: Was 90,000. With the exception of the 1978 race, the Formula One Grand Prixs were held in March or April in Rio's very hot and humid tropical early autumn weather. The first Brazilian Grand Prix at the circuit took place shortly after its opening in 1978 , and was won by Argentina 's Carlos Reutemann in a Flat-12 Ferrari 312T3 in the oppressive heat and humidity of Rio's January summer season, after Sweden 's Ronnie Peterson had taken pole position in

1935-454: Was leading by some 40 seconds on lap 34 when the wires to his McLaren's battery came loose causing electrical failure. After almost stalling his Brabham-BMW at the start, Piquet finished an unhappy race on lap 32 when the BMW engine failed coming onto the pit straight. After passing Warwick for the lead, Prost, who was in the pits for a tyre change when Lauda coasted in to retire, lost the lead back to

1980-542: Was the 13th edition of the Brazilian Grand Prix , the ninth time that the Jacarepaguá Circuit race held a Grand Prix, and marked the debut of Ayrton Senna in Formula One. In qualifying, Italian driver, Elio de Angelis from Team Lotus claimed pole for the second time in his career as he finished ahead of fellow Italian driver, Michele Alboreto who was in the Ferrari . In the race it was Alain Prost in

2025-417: Was the first to be held following the banning of turbo engines, and Great Britain 's Nigel Mansell took a surprise win in his V12 powered Ferrari 640 , complete with Formula 1's first semi-automatic gearbox . Another Brazilian driver, Maurício Gugelmin , finished third in a March 881 (Prost finished second), while Senna, who had won his first World Championship the year before, set the fastest ever lap of

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