• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

As the water flow progresses downstream, the river channel should become wider and deeper due to lateral and vertical erosion

Extracts from this document...


Hypotheses I am testing that this is how the following hypotheses will change as you progress downstream: * The river will get wider and deeper * The velocity will increase * The discharge will increase * The gradient will decrease I will also test the following hypothesis: * Sediment size will decrease Predictions As the water flow progresses downstream, the river channel should become wider and deeper due to lateral and vertical erosion. ...read more.


The rivers discharge will also increase because of the rivers tributaries contributing to the water flow of the main river. These tributaries help collect water from inside the river basin and carry it to the main river where it joins at a confluence. The gradient of the river will decrease as the water flows further down the river. This is because the gradient is very steep in the Upper Course as the Source is always the highest point. ...read more.


This is due to rocks of large masses also being large in size. The significance of the mass of the sediment is that it can only be transported downstream if the velocity is large enough to carry it. For example, only a high velocity could carry heavy pieces of sediment. This means that large pieces will be found near to the Source and small ones close to the Mouth. I have made these predictions from theoretical background into the usual features of a river as so to make accurate predictions. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Hydrology & Fluvial Geomorphology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Hydrology & Fluvial Geomorphology essays

  1. Study the downstream changes of Loughton Brook.

    The river has more energy due to the large amount of water and so erodes the river. During the later stages of a river there is more horizontal or lateral erosion rather than vertical erosion. Corrasion will also occur and will widen the channel.

  2. An investigation into changes in channel parameters down the river Horner

    The same factors mean the pebble shape has also constantly been rounding. Pebble shape Continued rounding Conclusion The data and analyse broadly supports the hypotheses set out above. However there were some important exceptions, in particular velocity appears to be dependant on the volume of water and the efficiency of the channel rather than the gradient.

  1. How does Loughton Brook change as it moves downstream?

    We used the 1 m ruler to measure this. We used this technique so that we could use the results to draw a hydrograph and see the shape of the banks and bed. We recorded the results on our recording sheet.

  2. How Do River Characteristics Vary Downstream?

    As 4.1 demonstrates a possible reason for one of the weaker points in the correlation (site number 10) is the fact that a natural barrier/dam had built up in the river. This could have been due to debris not being able pass a certain obstacle during flood conditions or for another reason.

  1. Investigating the river Caerfanell

    This is because the channel is rougher and steeper near the source. There is an anomaly at site 2, with an increase of a slope angle to 4.5^o and I would assume that is an error from the method. This was probably caused by group 3's higher than usual reading

  2. Geograpgy glendun river

    If the pH is too high the same thing can occur. pH must be assessed because it affects the organisms living in it. Results and analysis Hypothesis 1 Stream Width The ideal stream would get wider as it gets closer to the mouth.

  1. River channel processes.

    This hence forms the v-sided valley. The steepness of slopes is affected by the rate of weathering with the shallow valley with wide slopes meaning that the area has a high rate of weathering and a low amount of down force cutting from the river. CASE STUDY - GRAND CANYON, ARIZONA, USA This river valley is

  2. Do the Characteristics of a river change downstream?

    Backstone Beck - The upper course of the river. Backstone Beck begins at grid reference 126460 and ends at 127483. Although the path taken by Backstone Beck is not completely straight it is neither particularly winding. There are a few large bends around interlocking spurs but most of the other bends in the beck are insignificant.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work