Who can tell me more about Thames, Danube and Rhine?

Classification: Education/Science >> Science and Technology

Problem description:

Can you give me the link to the map, too?

Analysis:

Thames is the longest river in Britain. Originated in the Cotswolds, England, it flows through Oxford, London and other important cities from west to east and flows into the North Sea, with a total length of 346 kilometers and a drainage area of 1 1400 km2.

Thames means "wide river" in Celtic. The river flow is stable, with large flow in winter and little icing. The river channel below Oxford is widened, and the widest point of the estuary is 20 kilometers. Because the estuary is close to the North Sea and the Atlantic Ocean, every time the tide rises, it will roar along the funnel-shaped estuary and return to a far place over London. In order to prevent the tidal bore from flooding London, the Thames tidal sluice project with complicated technology and huge cost was built at the downstream of London Bridge 13km. The navigation mileage of the Thames is 280 kilometers, and ships can reach London by tide (88 kilometers from the estuary). There are many highway bridges and railway bridges along the river, among which the Tower Bridge in London is one of the most famous bridges in the world. There are also many canals connected with other rivers. The Thames is also the main source of water in London.

Danube is a famous international river, and it is the largest river that flows through the country in the world. It originated in the eastern foot of Heilin Mountain, 679 meters above sea level in southwest Germany. It flows through Austria, Czech Republic, Slovakia, Hungary, Croatia, the former Yugoslavia, Bulgaria, Romania and Ukraine from west to east, and then flows into the Black Sea. With a total length of 2,860 kilometers, the Danube is the second longest river in Europe. The Danube meanders like a blue ribbon across Europe.

There are more than 300 tributaries along the Danube River, with a drainage area of 810.7 million square kilometers, which is larger than the Yellow River in China. The Danube has an average annual flow of 6,430 cubic meters per second, and the amount of water entering the sea is 203 cubic kilometers.

From the source to Vienna is the upper reaches of the Danube, where the Danube receives several tributaries of the melting snow in the Alps, and the water volume is greatly increased. Here, the scenery is beautiful and idyllic. From Vienna to Tiemen is the middle reaches of the river, where the river valley is generally wide, the riverbed slope is not big, the river channel is curved and there are many tributaries. In the Carpathian Mountains east of Belgrade, a canyon with a total length of1.30km has been formed, including Kasang Canyon and iron gate, which is rich in hydraulic resources. From below the iron gate to the estuary is the lower reaches of the river. The lower reaches of the river are wide and the water flow is stable, reaching 15 to 28 kilometers when approaching the estuary, and the shipping industry is very developed. The Danube Delta is rich in reeds (reeds are good raw materials for paper making). There are also a lot of birds and strange floating islands here, so scientists call it "the largest geological and biological laboratory in Europe".

There are many beautiful cities on both sides of the Danube. They are like bright pearls embedded in this blue ribbon.

Le Gensburg is the largest city in the upper reaches of the Danube. The natural environment here is beautiful, and there are ancient churches, villas and hotels everywhere. Now the machine building and electronic industry are also very developed. Vienna, the capital of Austria, is an upstream destination and a famous cultural city with a long history. The blue Danube slowly passes through the urban area, with beautiful mountains and rivers and beautiful scenery. The beautiful Vienna forest stretches in the suburbs, lush and tree-lined. Every June, a music festival is held here. Vienna has always enjoyed the reputation of "world famous music city". Bratislava, located in the middle reaches of the Danube, is the capital of Slovakia and one of the largest ports on the Danube route. It has been the main trade channel between northern and southern Europe since ancient times, and the Morava River joins the Danube here. Budapest, the capital of Hungary, is known as the "Pearl on the Danube". It consists of two cities, Buda on the west coast and Perth on the east coast, which are connected by eight beautiful bridges on the Danube. Buda is a mountainous city with hilly terrain, and many places of interest are concentrated in Castle Hill. Pace, with flat terrain, is a bustling business district and the seat of the * * * organ. Belgrade is the capital of the former Yugoslavia, located at the intersection of the Danube and sava river. The sparkling Danube River passes through the city and divides it into two parts. This is the plain in the middle reaches of the Danube, and it is known as the "barn". Galac, located in the lower reaches of the Danube, is a port city rebuilt on the ruins of World War II, and now it is the "steel capital" of Romania.

The Danube not only beautifies the homes of the people along the coast, but also provides them with a lot of electricity and convenient shipping. People along the coast are full of feelings for it and have been singing it for generations.

The Rhine River originated in 5 Onden, Glaub, a small administrative region in the Swiss Alps. Its two main countries of origin are called Vorderrhein and Hinterrhein. Vorderrhein (formerly known as Rhine) passes through Matu Lake near O 'Beullard in spring and passes through the impressive Ruinaulta (Swiss Grand Canyon). Hinterrein (post-Rhine) starts from the Paradies Glacier near Kohlhorn, Rhine, on the southern Swiss border. The two client countries met near Reichenau, still in Grisons.

When Grison left, the Rhine flowed northward along the border to Liechtenstein and Austria, and then flowed into Lake Constance. The Rhine then reappears and flows westward, mainly at the border between Switzerland and Germany. It falls into the Rhine in autumn, and its water volume more than doubles, then becomes the northern part in Basel, and forms the southern part of the border in a wide valley between Germany and France, and joins the Aar River before fully entering Germany.

The Rhine is 800 kilometers long and the longest river in the world, mainly located in Germany. The Rhine met some major vassals here, such as Neckar, Jianye and Mo Ze. The wider Rhine valley ends in confluence and conciseness, and the Rhine river then enters the narrower valley, widening south of Cologne. Although in Switzerland, many industries can be found along the Rhine, here, most industries are concentrated in the Ruhr area, and all their water is discharged into the Rhine, so the pollution is reduced, although it is considerable.

The Rhine turns the west into Holland, and forms a broad delta with the Meuse River. Crossing the border into the Netherlands, the Rhine is the widest, but it is divided into three main tributaries: IJssel, Waal and Nederrijn (the Rhine below). From here on, the situation becomes more complicated when the name "Rhine" is no longer consistent with the main flow direction of water. Most of the Rhine River flows westward through Val, then flows through Novotweg, joins the Meuse River, and enters the North Sea through the exits of Dieppe, Holland and Harif Park Jung Su. Part of the tributary of IJssel flows into IJsselmeer in the north, while Nederrijn runs parallel to Waal in the west.

However, the waterway outside Wijk bij Duurstede was renamed Lek. It flows further west into New Waterweg. The name "Rhine" has been further used from here, only for the smaller river pair that once formed the main river, that is, the Rhine River in northern Rome. Although they kept their names, these rivers no longer take water from the Rhine, but use it to discharge the surrounding land and polder fields. Starting from Wijk bij Duurstede, the old northern part of the Rhine River is called Kromme Rijn ("Curved Rhine"), which flows through Utrecht, the first Leidse Rijn ("Leiden Rhine") and then Oude Rijn ("Old Rhine"). In the west of the latter flow, Leiden enters the sluice, and its water may be released into the North Sea.