• 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

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.

Middle

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.

Conclusion

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)

    Precipitation falling directly onto the land surface (input) moves downslope by overland flow, or surface runoff, by which the water is transferred to surface stores such as lakes, reservoirs, or puddles or flows into the river channels. Some of the precipitation is intercepted by vegetation (interception)

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

    This graph compares the pebbles at site 1 and demonstrates that they become much more rounded downstream (for reasons already specified). I have been using the same explanation for pebble shape getting rounder as I have for pebble size getting smaller downstream (pebble size explanation is 2 pages on).

  1. Geography investigation - The River Skirfare located in the Littondale region in the Yorkshire ...

    The wetted perimeter though will be done very accurately using the hand drawn graphs and measuring the lines. The results from this can be seen below. This will hopefully give an insight in to the efficiency of the river at both locations being studied.

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

    D90 bedload. The D90 bedload was measuring by selecting 50 rocks, putting them in size order, and selecting the 45th largest. 100 rocks are usually selected, and then the 90th largest is recorded, but there was not enough time to do this so the 45th was used.

  1. Investigating the river Caerfanell

    I note this because the meter runs on batteries and can sometimes be temperamental, so if the batteries are low in power the meter may not function properly as it should. Also check that the timer and reading needle are working properly to ensure the accuracy of the velocity reading.

  2. I am going to study the characteristics of rivers and how they change as ...

    This graph shows the length of the left and right bank to water for each stream order. The measurements for all the stream orders are almost equal. The right side is higher than the left for stream order 2 and the left side is higher than the right for the third and the fourth stream order.

  1. Case Study on The Three Gorges Dam in China

    There is some debate to weather this is a good thing. One the one hand the Chinese government are putting money into the rebuilding and relocation of towns and villages that will perhaps make them a more desirable place to live in the future and more able to sustain economic development.

  2. Geograpgy glendun river

    There should only be vertical erosion at this part, because the river is trying to cut down to its base level also it's due to the large boulders and the high velocity. At this section you may also find potholes, they are formed by corrosion.

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