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

Introduction to study of the River Shuttle.

Extracts from this document...


Introduction to study of the River Shuttle. This geographical report will focus on the changes in the characteristics of the River Shuttle as it flows down stream. The River Shuttle is approximately 6.3km in length. It flows from New Eltham (grid reference 443 737, landranger 117 0rdnance survey map), through Bexly where it flows into the River Cray (501 702.) The aim of this investigation is to test three hypotheses. 1.) The velocity of the river increases as it moves down Stream. 2.) Bed load calibre decreases as you move down stream. 3.) There are no significant differences in the channel characteristics of a small river as it moves down Stream. Methodology. These hypotheses can be tested using several methods. Although the methods used are not completely reliable, due to lack of professional equipment, they can still give a fairly accurate reading for each hypotheses. Velocity was tested by timing the length it takes for a small and light object to travel over a 5m stretch at each site. Bed load calibre was tested by measuring five random pebbles from within the river, using callipers and taking an average. ...read more.


Research was carried out on the bend of the river. Site nine. This site is found in woodland area and backs on to nearby housing. A barrier has been built to try and protect these houses. There is little evidence of pollution. Site ten. The river is situated in a wood-land area so there is little pollution. This site is found near where the River Shuttle joins the River Cray. Hypothesis two. Bedload calibre decreases as you move down stream. The graph above disproves the hypothesis that bed load calibre decreases as you move down stream. There are no patterns, trends or relationships that occur when looking at the average bed load calibre for each site. Site two, for example has an average bed load calibre of 5.0cm. Site ten however has just an average of 3.32cm. This would not normally be expected. The averages vary greatly and there is no significant evidence of an increase or decrease of pebble size. Hypothesis three. There are no significant differences in the channel characteristics of a small river as it moves down stream. ...read more.


One explanation is that factors such as pollution levels, the situation of the site and the depth of water can affect the velocity. This could be overcome by using more professional equipment to collect our results. Although we took three velocity readings from three different parts of the river and worked out an average, if more readings were taken, the results may have been more accurate. I expected bedload calibre to decrease as I travelled down stream. There was, however, no trend in bedload calibre size. Although we took a random sample, they were from the same area of the river and this may have affected the results. If we had taken a random sample from five different areas within the site and worked out an average my results may have been more reliable. Also because its such a small river and velocity isn't extremely high, pebbles on the river floor bed are not as likely to decrease in size as predicted. Finally, I found that there were significant changes in the river characteristics as we moved down stream. Erosion, weathering and deposition are all factors which affect the characteristics of the River Shuttle and this is shown in the dramatic changes in the shape of land from site one through to site ten. ...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. Hydrology and Fluvial geomorphology. (Q&A)

    It is the amount of water passing a point in a river at a given time and it is measured in cubic metres per second (cumecs). It is very difficult to describe the Hjulstrom curve without a copy of the diagram!

  2. Case Study on The Three Gorges Dam in China

    Conclusion After researching the effects of building the Three Gorges Dam I have been made to think of many positives, such as economic advantage and the prevention of devastating floods, and many negatives, such as the ecological and environmental disaster that the dam may cause.

  1. 'To what extent does the River Lyn conform to the Bradshaw model of River ...

    out the Rs you use the calculation: 1-{(6?d2)�(n3-n)} With my data the sum will be 1-{(6 x 6)�125-5}} = 0.7 I looked up the Rs value in the significance table the published value from the significance table at the 5% level for five pairs of data is one.

  2. The river Gwaun: Investigating how the course of the river changes from the source ...

    5 19 3 19 2 20 2 20 1 Graphs Averages Site 1 - Angular/Sub-angular (5&4) Site 2 - Moderate (3) Site 3 - Moderate (3) Site 4 - Moderate (3) Description The most common shape(s) of bed load in: Site1are angular and sub-angular with 40% each and 80% (16 samples)

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

    In this case it's the river on the left as the wetted perimeter is smaller and thus the hydraulic radius is bigger. The measurement of hydraulic radius should show me how the river is changing as it flows downstream. Gradient I will measure the gradient at each site so I

  2. Geograpgy glendun river

    Pebbles carried by the river are swirled around on the riverbed. This erodes the rock on the riverbed forming potholes. Features include: Rapids, Waterfalls, Gorge and interlocking spurs Middle course - The river starts to widen at this stage of the course and due to vertical and lateral erosion the river also becomes deeper.

  1. Does the river Alyn follow Bradshaw's model?

    Knowing how river variables change can be useful in predicting how the river will react to heavy rainfall which can help with flood prediction and protection. Being able to measure the velocity and discharge at a point on a river is important when building dams so that your dam can provide the optimum amount of hydroelectric power.

  2. A study into the bed load of the River Lemon

    The Lemon has a stream order of 3. At Dartmoor, where the Lemon's source is, the bedrock is made from hard, impermeable granite. Granite is very difficult to erode, and as a result, the river has not reached its graded long profile.

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