what is the middle course of a river

middle course - The section of the river which comes between the upper and lower course. It is usually wider and deeper than the upper course and the water flows slowly. tributary - A stream or river that flows into another stream or river instead of flowing into the sea.

Full Answer

What happens in the middle course of a river?

Mar 22, 2021 · In the middle course of a river the gradient decreases (it flattens out) and the discharge increases. This is due to the fact that many more tributaries have joined the main channel, leading to an increased volume of water, as well as the fact that the high level of gravitational potential energy which was found in the upper course of the river has been …

What is the gradient of the middle course of the river?

In the middle course the river has more energy and a high volume of water. The gradient here is gentle and lateral (sideways) erosion has widened the river channel. The river channel has also...

What landforms are found in the middle course of a river?

Middle course of a river The middle course of a river has more energy and volume then in the upper course. The gradient is more gentle and lateral (sideways) erosion has widened the channel. The river channel has also become deeper. Meanders are typical landforms found in this stage of the river. Meanders

What is the difference between middle course and upper course?

middle course - The section of the river which comes between the upper and lower course. It is usually wider and deeper than the upper course and the water flows slowly. tributary - …

What is a river lower course?

The lower course of the river is where the it comes to meet the sea at the mouth, and starts at the relatively straightening path preceeding it, surrounded by flat land. Features of the Lower Course of Rivers: High Volume and Discharge - At the lower course of a river, the river is at its biggest volume capacity.Aug 23, 2017

What do you call the middle of a river?

The deepest part of a river bed is called a channel. The channel is usually located in the middle of a river. Here, the current is often strong. In large rivers, ships travel in channels.Dec 24, 2021

What is the parts of a river?

The upper course, middle course, and lower course are the three parts of the river. The source of a river can be found on the upper course. The land is usually high and mountainous, and the river has a steep gradient with fast-flowing water. There is a lot of weathering and erosion.

What is the course of a river?

A river is split up unto 3 parts - upper course, middle course and lower course. Each is defined by particular variations of features such as discharge speed, the width and depth of the river bed, the landscape and many more. The upper course of a river is where the river begins its path toward the sea.Aug 23, 2017

What is the Scottish outdoor access code?

Scottish outdoor access code - A set of Government guidelines about our rights and responsibilities when visiting Scotland's outdoors. middle course - The section of the river which comes between the upper and lower course. It is usually wider and deeper than the upper course and the water flows slowly.

What is the meaning of the word "burn"?

burn - A large stream or small river. This word is commonly used in Scotland and some parts of England. erosion - When a material, like rock, wears away over time. The powerful water in a river's upper course causes lots of erosion in the landscape.

What is meandering in a river?

A meander is a large bend in a river. Water flows fastest on the outside of the bend and slower on the inside of the bend. Fast water erodes a steep river cliff on the outside of the bend (on the left in the picture).

Where is the oxbow lake?

The meander gets blocked off and becomes an oxbow lake. This oxbow lake is on the Yavari River in Peru.

Where do beavers live?

Beavers mainly like to live in freshwater systems like rivers, streams, lochs and ponds. They are a native species to the UK, which means they naturally lived here without humans getting involved. They were hunted to extinction hundreds of years ago but were successfully reintroduced to the UK in 2009.

What are the most famous waterfalls in India?

The Jog or Gerosoppa falls of Kaveri river, Dhuandhar falls near Jabalpur, Indrawati falls of Baster of Madhya Pradesh, Hundroo falls of Ranchi and Bidan and Bishop falls of Shillong are some of the famous waterfalls of India. 2.

What are the three courses of a river?

Article shared by : ADVERTISEMENTS: If we look into the whole length of a river we will notice that it has three definite courses: 1. The Upper or Mountain Course 2. The Middle or Plain Course 3. The Lower or Deltaic Course. 1. The Upper Course: In the mountainous course, a river passes through a steep slope.

Where are oxbow lakes?

There are many ox-bow lakes on the two sides of Beki and Dhansiri rivers of Assam. At the time of flood, water inundates the low-lying area by the side of the river. The silt carried by the flood is thus deposited in this area year after year and a plain is built up. Such a plain is known as flood plain.

What happens when a river leaves a hilly area and enters a plain?

Hence, the speed of the current is also less, compared to the upper course. The river is fed by many tributaries and its volume of water increases.

Where is silt deposited in a river?

The silt carried by the river water is, therefore, deposited at the mouth. In the course of time, the silt thus deposited forms a triangular island at the mouth of the river. This is known as delta. When the tidal waves and sea currents constantly wash the river mouth a delta cannot be formed.

What is the last part of a river near its mouth called?

The last part of a river near its mouth is called the lower course. In this part the slope of the river bed is not very steep. The current is also very slow. Deposition is the main activity of a river at this stage.

What is the cycle of erosion?

At the start of the 20th century William Morris Davis devised the " cycle of erosion " method of classifying rivers based on their "age". Although Davis's system is still found in many books today, after the 1950s and 1960s it became increasingly criticized and rejected by geomorphologists. His scheme did not produce testable hypotheses and was therefore deemed non-scientific. Examples of Davis's river "ages" include: 1 Youthful river: A river with a steep gradient that has very few tributaries and flows quickly. Its channels erode deeper rather than wider. Examples are the Brazos, Trinity and Ebro rivers. 2 Mature river: A river with a gradient that is less steep than those of youthful rivers and flows more slowly. A mature river is fed by many tributaries and has more discharge than a youthful river. Its channels erode wider rather than deeper. Examples are the Mississippi, Saint Lawrence, Danube, Ohio, Thames and Paraná rivers. 3 Old river: A river with a low gradient and low erosive energy. Old rivers are characterized by flood plains. Examples are the Yellow, lower Ganges, Tigris, Euphrates, Indus and lower Nile rivers. 4 Rejuvenated river: A river with a gradient that is raised by tectonic uplift. Examples are the Rio Grande and Colorado River.

What is the name of the river that flows into the ocean?

The Amazon River (dark blue) and the rivers which flow into it (medium blue). The start of a mountain stream. A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river.

How does a river start and end?

A river begins at a source (or more often several sources), follows a path called a course and ends at a mouth or mouths. The water in a river is usually confined to a channel, made up of a stream bed between banks. In larger rivers there is often also a wider floodplain shaped by flood -waters over-topping the channel. Floodplains may be very wide in relation to the size of the river channel. This distinction between river channel and floodplain can be blurred, especially in urban areas where the floodplain of a river channel can become greatly developed by housing and industry.

Where does water come from?

Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, and the release of stored water in natural ice and snowpacks (e.g., from glaciers ).

What are the names of rivers?

Small rivers can be referred to using names such as stream, creek, brook, rivulet, and rill.

How do rivers flow?

Rivers can flow down mountains, through valleys ( depressions) or along plains, and can create canyons or gorges. The river channel typically contains a single stream of water, but some rivers flow as several interconnecting streams of water, producing a braided river.

Where does a river start?

A river begins at a source (or more often several sources) which is usually a watershed, dra ins all the streams in its drainage basin, follows a path called a rivercourse (or just course) and ends at either at mouth or mouths which could a confluence, river delta, etc.

Ecology

Cow moose ( Alces alces) feeding on aquatic vegetation at Lewes Marsh along Yukon River, near Whitehorse.

Brief History

The Yukon River was extensively explored by the Russia n explorers and fur traders in the 19 th century. Initially, till the 1830s, only the Delta of the river was known to Russians, while the headwaters of the river were not known till the next decade. By 1846, the Russians had successfully mapped about 970km of the lower river.