What are the features of the upper course of a river?
In the upper course of a river gradients are steep and river channels are narrow. Vertical erosion is greatest in the upper course of a river. As the result of this typical features include steep valley sides, interlocking spurs, rapids, gorges and waterfalls.
Which physical feature is formed during the upper course of a river?
The formation is known as Gorge. There are many gorges on the upper course of the Brahmaputra, the Indus, and the Ganges.
What features do you find in the lower course of the river Severn?
Lower course The land is flat and the river is at its widest. Channel The river bed and banks in which water flows. Tributaries Small streams that join the larger river. Transportation When eroded material is taken downstream.
What is the course of the River Severn?
The Severn rises near the River Wye on the northeastern slopes of Plynlimon (Welsh: Pumlumon), Wales, and follows a semicircular course basically southward to the Bristol Channel and the Atlantic Ocean.
What are the physical features of a river?
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.
What are the main river features found in the middle course of a river?
meanders
The middle course has two main features – meanders and ox-bow lakes. These are both results of varying speeds and friction levels in the faster moving water, compared to the upper course.
How are the waterfalls formed in the upper course of a river?
Waterfalls are formed in the upper stages of a river. They occur where a stretch of hard rock overlies a softer rock. Falling water and rock particles erode the soft rock below the waterfall, creating plunge pools e.g. River Congo.
What are the features of the 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.
How is the River Severn used?
The River Severn, like all rivers, provide us with food, energy, recreation, transportation routes, and water for irrigation and for drinking.
How does the volume of the river change from the upper to the middle course?
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.
