• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14

"The Hydrological Study Of the River Conwy"

Extracts from this document...


GCSE Coursework "The Hydrological Study Of the River Conwy" This project will study the transition of the River Conwy as it flows downstream. It will concentrate on the following variables: * Water Width * Depth * Wetted Perimeter * Gradient * Flow Velocity * Float Velocity * Stone Roundness * Stone Size Another variable we could have measured is the pH value of the water in the river. This would have detected pollution levels as it goes downstream. These 8 variables will provide us with the sufficient information. Aims The aims of the project are: 1. To investigate changes in the channel form and river processes at different sites downstream on the River Conwy. 2. To identify landforms associated with river processes Hypothesis The following hypotheses were tested: 1. Downstream, the width will increase. 2. Downstream, the depth will increase 3. Downstream, the velocity will decrease 4. Downstream, the cross sectional area will increase 5. Downstream, the discharge will increase 6. Downstream, the gradient will decrease 7. Downstream, the wetted perimeter will increase 8. Downstream, the bed load size will decrease 9. Downstream, the bed load roundness will increase. ...read more.


One person has an instrument that measures the angle of the gradient 3. Find a point on the pole that is in the same place on the other pole and measure the angle from that point to the other point. Limitations: 1. Making sure your view is squared to the other post 2. Making sure the post is on the water surface Justification: The gradient is important to measure because if the angle is higher upstream than it is downstream then there will be other changes downstream and that is what we are looking for. Float Velocity 1. One person must have a stopwatch, another must throw in the float and another must catch the float. 2. On the ends on the 10 metre segment a cork must be thrown.(From upstream to downstream) 3. The person catching the float must be downstream. 4. Once the float is thrown and reaches the first post the stopwatch must be started. 5. When the float reaches the other post downstream the stop watch must be stopped 6. Record the time Limitations: 1. Cork gets stuck/ caught by certain obstructions 2. ...read more.


We were limited to how many times we saw the river. We only saw a snapshot of the river. We could have improved the results by: 1. Going back every season to see if there are any key changes that have taken place. 2. Having more sites downstream 3. We could have made more measurements using a different set of equipment such as measuring the gradient with a dumpy level. 4. Take the pH reading of the river, this would have told us the pollution level of the water in the river. 5. We could have checked the river life with indicators such as small animals/insects that can only survive in very clean water, or can survive in all waters. 6. We also may have compared the Conwy to another river; perhaps the Roding would have been good as it is near and will be interesting to see how the different rocks and the different climate will affect the river. My skills learnt: I think my skills have developed enormously after going to the Conwy sites. I am now much more precise with my readings and my teamwork skills are much more effective now. I can now carry out an experiment on a river and will be confident that my results would be accurate. 3 ...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)

    whereas riffles are shallower sections with a less efficient channel shape (low hydraulic radius). This means that more energy is required to overcome the friction of the riffles than that of the pools, and in a straight river this means there is an energy imbalance between pools and riffles.

  2. Explain how human activity can modify the hydrological cycle.

    another storage or another flow to which it may add a large volume. Cities also affect the ground water because surfaces such as tarmac allow no infiltration into the soil, but instantly transport water to a river or to the sea, so instead of slowly infiltrating towards a river, the

  1. Study the downstream changes of Loughton Brook.

    Pencils were needed to write our various measurements and results with, and recording sheets were supplied by the Epping Forest Field Studies Centre to write them on it. There were two types of recording sheets. One was a river recording sheet on which information on each site was to be written down.

  2. How does the Efficiency and Cross-Sectional Area of a River Change Down Stream?

    Then after the visit, the data was collected and observed in school to be used in our investigation. I found the day very successful, and found the results interesting to observe, and enjoyed collecting the data.

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

    2 18 4 18 3 19 4 19 3 20 5 20 4 Site 3 Site 4 Bed Load Sample Bed Load Shape Bed Load Sample Bed Load Shape 1 3 1 2 2 2 2 5 3 1 3 4 4 3 4 3 5 2 5 4 6

  2. River channel processes.

    eel grass which can also trap debris and silt sediment between their roots. Cord grass then grows on the salt levees which are loose trapped silt and soil. As we travel from the marsh condition in the soil get less saline and drier as the tide can't reach it.

  1. This project will study about the way the river Conwy in north Wales changes ...

    This is measured in cubic meters per second. > DISCHARGE: To study, how much water is flowing in cubic metres per second. > WETTEDPERIMTRE: If a cork were thrown across the riverbed distance it would cover in metres. NOTE: we have to throw substance that is not too heavy it will take time.

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

    Wetted Perimeter v Velocity (graph 12)- This graph had virtually no correlation with a value of - 0.05. I would have expected more of a negative correlation as the greater the wetted perimeter the more friction there would be and the slower the river would flow.

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