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

Geography Fieldwork Write-up

Extracts from this document...


Geography Fieldwork Write-up Analysis Size of the Channel - the channel width grew larger the further downstream you were. This is shown on the diagrams of cross sections of the channel at 3 different points in the river. This is because of the higher discharge in the lower course of the river due to tributaries adding more water to the main river, therefore the river widens to be able to transport this extra water. Relationship between Velocity and Discharge - The Spearman Rank Correlation Co-efficient suggested a strong positive relationship between velocity and discharge. In other words, the higher the velocity of the river, the higher the discharge of the river. Roundness of the Load - the further down the river, the rounder the load was. ...read more.


However, since it was found in the middle course, a possible explanation is that the rock may just have fallen into the river where it was found, for example it may have been glacial scree, in which case it would not have been exposed to these erosion and transportation processes, therefore this would explain it's angularity. Size of Load - the further upstream you are the smaller the load. This is because discharge is low in the upstream areas, therefore it cannot transport a large load, therefore large rocks are deposited here. Similarly, the further downstream you are, the larger the load because the discharge is higher here, therefore can transport a larger load without having to deposit it. ...read more.


Limits of Conclusions The major limit of the conclusions was that only a relatively small section of the river was surveyed (2km). However, other areas of the stream may have been different and may have given us significantly different results, and consequently conclusions. A much larger section of the stream should have been surveyed in order to give more accurate and reliable results and conclusions. Possible Improvements to Methodology * Increase sampling size for all data areas * Use flow meter instead of a float to measure velocity * Extend the section of stream studied * Survey the stream at a different time of year * Geology - could have specified the types of rock that were randomly selected, as the type of rock could have affected its resistance to erosion and therefore it's roundness index ?? ?? ?? ?? ...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 thought that this caused global sea levels to drop by 100 metres or more, as the frozen water was stored on the land surface instead of being liquid in the oceans. Q: Why the global hydrological cycle is an example of a closed system?

  2. River channel processes.

    CASE STUDY - RIVER RHONE, SWITZERLAND. FLOODPLAINS - These are the flat areas that border a river. They are mainly made up from deposits in the river, silt and sand. This happens when the river floods, it looses a lot of it energy so it will deposit most of its

  1. River cross sections

    Thames for many reasons; mainly because it is too big and deep, making it hard to get measurements from, and is heavily influenced by human activities; boats, pollution etc. Key Terms: Long Profile: The long profile of a river is a primitive side-on view of the entire river.

  2. Do the Characteristics of a river change downstream?

    (This method ties in with the Bipolar analysis study) Grounds for deciding these methods. * I feel they will provide me with good contrasting results of the two sites as they are not based on opinion but on fact. * The apparatus we required could be acquired easily. * The methods are relatively safe to carry out and deny

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

    People can then take the necessary precautions to protect themselves and their homes e.g. moving valuables upstairs, putting sandbags out and in the most severe cases- evacuation. This can reduce the cost of repairs and in the worst floods- save lives.

  2. Edexcel Geography B Unit 3 Coursework

    * Is there a slight or even strong connection between the variables, depth and hydraulic radius downstream during the course of the River Holford? Hypotheses 1. There is a gradual increase in the velocity downstream in the River Holford. 2.

  1. On Thursday 9th of September 1999, year 9 left for their Geography field trip ...

    * The fastest sub-surface current is in the middle and just below the surface. The study of the River Lemon was carried out at six different locations namely Haytor, Pinchaford farm, Bickington, Mallands, Chercombe Bridge and Bradley manor (as shown in figure 2).

  2. Rivers Survey.

    This is the reason I have chosen to word process all my work. For the tables I have used a sophisticated spreadsheet programme. I have created my hypothesis for the data. Hypothesis. 1. The wider the river the greater the discharge.

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