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

Explain How and Why the Ouse floods and its consequences.

Extracts from this document...


Explain How and Why the Ouse floods and its consequences. Over the years human influences have affected the Ouse. The river Ouse is the principle drainage basin in Yorkshire and is naturally very large, covering 10,770 square km. It has four main tributaries; they are the Wharfe, Derwent, Aire and Don, these all contribute to the Ouse having a large base flow. The relief of the Ouse section of the basin is almost uniformly flat. The annual precipitation varies very little as a result, ranging from between 540 and 640 mm. ...read more.


The upland areas like the Pennines and Yorkshire Moors are dominated by pastoral activities, while the Vale of York has a mixture of arable and dairy farming. There are large areas of moorland in the uplands, particularly to the West of the Ouse. Moor land 'Gripping' (grips are drains) was carried out extensively in the Swale, Ure and Ouse catchments in the 60's and 70's, the consequence of these works has been to lower the water table and increase stream base flows near the drained areas. ...read more.


New housing areas, out of town shopping centres, and infrastructural developments all create impermeable surfaces within the basin. This then leads to an increase in surface run-off as infiltration is reduced. Drains carry much of this water into local streams and rivers, which increases discharge and can contribute to a greater frequency and magnitude of flooding There have been numerous floods in the past in York and other parts of the basin. Recent floods include those on the Ure affecting the area around Boroughbridge in 1991, and major floods around Selby in 1995 and along the Derwent in 1999. ...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. Geography Coursework: Epping Forest

    The results would depend on where the cork floated. A more accurate way of measuring the velocity than using the cork would be using a flowmeter. Hypothesis 6 and 7: The bed load size will decrease with distance downstream but the shape (roundness and smoothness) should increase with distance downstream.

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

    This is what causes the short axis value to be higher than perhaps it would be had more results been taken. Measuring angularity used a very different method from measuring the size of material. The stone charts were a good simple way to describe how smooth or rough the material was.

  1. The use and abuse of Snowdonia, a glaciated upland region.

    I also think that "on the spot" fines should be introduced, so those visitors who are caught doing excessive damage to the environment would be punished. I also think that footpaths should be clearly marked because through my own experience the footpath is not always clearly marked and so I sympathise with the visitors who wonder off by mistake.

  2. Devestating floods hit Bangledesh!

    Personley I feel that its not a great cause of the floods, but it doesn't help' Below is a table showing some causes and effects of the floods in Bangladesh. Human Activity What is it and where is it?

  1. Do the Characteristics of a river change downstream?

    This was also the case on the opposite bank. The metre ruler was held side on to the river flow so that the water was disturbed as little as possible warranting fair results. Diagram Logic Metres and centimetres are an obvious choice for this type of experiment as they are both metric units and enable me to create a clear cross-section of the river channel.

  2. Geography Coursework How Does Farming Change Between Bredon Hill and Birlingham? ...

    test is that: * The battery might go on the PH meter. Another way of doing this test is to take a sample to a lab and do it in there. A Pershore High School student taking the reading of the acid in the soil taken from Bredon Hill.

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

    How flooding can be controlled There are many ways in which either the flooding of a river can be reduced or the amount of damage or cost can be minimised. There are both disadvantages and advantages to these options. One way the risk of flooding can be reduced is raising the lev´┐Żes on either side of the river.

  2. Consequences and Responses of Floods in the L.E.D.W and the M.E.D.W

    M.E.D.C's generally have better drainage systems than L.E.D.C's therefore they suffer less from this particular effect. * The combination of corpses floating in the river, with refuse and sewage of people and animals allows disease to spread extremely quickly. The disease has less chance of becoming a major hazard in

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