• 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. 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).

  2. Case Study on The Three Gorges Dam in China

    It is intended that those that loose their job to the reservoir are to receive compensation. Those working on the dams' construction will eventually loose their livelihoods when the project is completed whilst it is likely that they will find jobs in the ongoing relocation and improvements in the area

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

    * Tables of Results Arncliffe Length Of River (cm) Depth Below Bankful (cm) 0 15 1350 133 50 35 1400 124 100 36 1450 121 150 33 1500 123 200 84 1550 118 250 112 1600 124 300 142 1650 119 350 139 1700 122 400 141 1750 126 450

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

    Bed Load Sample Bed Load Size (cm) 1 14 1 25 2 12 2 22 3 13 3 35 4 14 4 26 5 16 5 30 6 18 6 34 7 10 7 39 8 9 8 22 9 7 9 25 10 6 10 21 11 11 11

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

    I will have to get secondary data to help me see how much it conforms to the Bradshaw model of River characteristics. Fig. 5 Water + channel width. Fig. 6 Wetted perimeter. The way I measured the wetted perimeter, wasn't very accurate so I drew a cross-section of the River

  2. Compare the observations and recordings made at the two sites with predictions made from ...

    believe that they will be significant enough to make an important difference to my prediction. Bedload Size: I predict that the size of the river's bedload will be greater at Site 1 than at Site 2. This final hypothesis is based on the prediction that a river in its upper

  1. Geograpgy glendun river

    The gradient is not as high as it would be in the upper course of the river. On the inside of the bend, where the river flow is slower, material is deposited, slow flowing and shallow. This causes deposition to take place and a slip off slope is formed.

  2. Investigating the river Caerfanell

    laid tape measure along the river bank - Take the beginning tape measure and nail it down with the metal pin at 5m where the water has started to touch the riverbank side. - Someone with the other end of the tape measure walk across the river to the other side.

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