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

Investigate how the river Breamish's characteristics change from source to mouth.

Extracts from this document...


Aim In our enquiry we are going to investigate how the Breamish's Characteristics change from source to mouth. We are going to see which aspects of the river will change. The aspects that we will be measuring are going to be whether or not the velocity, bedload, bedload shape or width will change as the river travels from the source to the mouth. Identifying questions and issues I have decided to examine and measure the changes in the rivers velocity, width, rock classes. I will be measuring these as different points downstream. We will be split into different groups, some will be measuring at the source, some at the mouth and some half way in-between. I am expecting that the rivers velocity will increase from the source to the mouth. The river will become faster flowing because of erosion, which will cause the bedload to become smoother, this means there is less friction acting on the water. This will make it flow faster and more freely. I predict that the river will become wider from the source to mouth. My reasoning behind this is that lateral erosion will cause the banks to wear down, meaning that the river will become wider as the river moves downstream. ...read more.


If this is not done properly we could get an inaccurate reading. We will repeat this at 5 intervals downstream. Bedload To get an accurate reading of the bedload, we will be using the callipers. If these are used correctly they will give us an accurate reading. We will be measuring the longest side of the rock. This could cause problems with the result if this is not followed. We are going to be using a chart to determine what kind of stones we are measuring. To get an accurate reading we are going to be sampling about 20 stones, at different parts of our site. We will be repeating this process at all of our site downstream. Depth To accurately get a reading of the depth we will have to go in the river to use rulers. We will also be using the tape measure, so that we can mark out at which intervals we will be measuring the depth at. Once we have determined the intervals we will use the ruler to measure the depth. The only problem with this being that we might not be always be measuring from the riverbed. ...read more.


I can now prove that as the river moves downstream the rocks become rounder and smoother. Which is what my theory states that should happen. I have decided to use this graph because of the fact that it is one constant line which doesnt break. This is easy to show how the average depth of the river changes from site 1 to site 11. This graph clearly shows us how the rivers depth changes from the shource to mouth, it gives us an idea of what is happening. If i was to compare site 1 with site 6, the result would be clear to see. The fact that at site 1 the depth is 0.22m, where is at site 6 the depth is 0.42m. This clearly shows us how the river depth does indeed change from source to mouth. The points which dont really fit my trend are site 7 and site 8. This is because these 2 sites were tributaries of the river breamish, so i cant really count these in my trend line. So in conclusion to my key question i can show how the rivers depth does indeed increase from source to mouth. Geographical enquiry on how a rivers characteristics change From source to mouth ...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. How a river changes from source to mouth

    Water flows around the bend in the river and as it does so, it swings to the outside of the bend this means the fastest flowing and highest volume of water is concentrated on the outside of the bend thus having the most energy to erode the bank at this point.

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

    amount of time I had, and the accuracy and reliability of the equipment I had. The flow and temperature of the River also could have made my results more unreliable. Data representation, analysis and explanation. Photographs of the five sites.

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

    This can be due to three types of erosion; it can be due to attrition, hydraulic action or abrasion. STREAM ORDER 2: Stream order 2 has a very low average depth of water (12.3cm) and it has a small water width (112cm).

  2. Study the downstream changes of Loughton Brook.

    This section illustrates the various results I have acquired in the survey. My results are displayed in the form of graphs, charts, diagrams and other means of graphical representation. Bank to water widths Cross-sectional Area Discharge Float Time Gradient Height of banks Surface Velocity Water Depths Water Width Wetted

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

    The method used to pick the 4 points on the river where we would sample was biased as these areas were picked to try and show certain trends in pollution levels. The areas I tested, Loggerheads, wasn't chosen at random which means that there may be some bias in my results.

  2. My hypotheses are:The character of the course of the River Bollin will change along ...

    66.9766cm� Mode Roundness classification = 4 Velocity of flow = 0.26m/s Gradient at site three: 0.86 degrees downstream Here is a pie chart showing the numbers of rocks falling into the "Class Categories" of the "Powers roundness index" Chapter IV, Data interpretation The decrease in gradient tells me that as

  1. To assess whether the modified channel of the river ash is effective in reducing ...

    In the natural channel there is a strong positive correlation apart from the anomaly at 0o. Graph 19 and 20 When the speed of flow was compared with the channel depth in the natural channel I noticed a negative correlation apart from an anomaly at zero point three two metres in depth.

  2. Investigate how the velocity of rivers changes.

    At this section of the river the river is beginning to erode laterally as well as vertically. The sides of the river have been reinforced in order to prevent flooding into the nearby factories and superstores. At this stage of the river the river is still carrying large particles opposing the movement of the water.

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