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

How does flooding affect the environment and the lives of people?

Extracts from this document...


By: katherine smith What is Flooding? Floods occur naturally on many rivers, forming an area known as the flood plain. A flood occurs when there is a large increase in water levels. A flood that rises and falls quickly with little or no advance warning is called a flash flood. Flash floods usually result from heavy rainfall in a very short space of time in a relatively small area. What causes Flooding? There are many factors for why Floods happen, such as: - The Weather- Heavy rainfall or monsoon rains can leave the land saturated and land cannot absorb it. Typhoons and Hurricanes can create extremely powerful storm surges, high tides and Tsunamis. This causes costal flooding Deposition of silt- this means a rise in river bed levels, reducing channel capacity. Mountain and Ice caps- As temperatures change Snow caps start to melt and water levels rise. How does flooding affect the environment and the lives of people? * Physical damage- Structures and buildings get damaged due to floodwater and a chance of possible Landslides. Roads can be blocked off and bridges can be destroyed. * Casualties- People and livestock die due to drowning. It can also lead to epidemics and diseases. * Water supplies- Contamination of water making it unclean to drink (drinking may cause diseases such as Typhoid and Cholera etc..) Clean water may become unavailable * Crops and food supplies- Shortage of food crops can be caused due to loss of entire harvest and fish. ...read more.


7:45 am: Two floodwall sections on the east side of the Industrial Canal fall, releasing a wall of water into the lower 9th Ward, crashing down on homes and cars. The water also pours into Arabi and Chalmette. 8:30 am: In Lake Borgne water rises and easily tops over at St.Bernard's 7-foot to 9-foot 40 Arpent Canal levee, filling neighbourhoods from Poydras to Chalmette. North, a one-mile stretch of floodwall on the south side of Lakefront Airport is topped by surge from Lake Pontchartrain, adding to already severe flooding in eastern New Orleans. 9:00 am: The Surge rises to 10 feet in the London Avenue Canal, its levee's wall panels start bending, water leaks into yards. Roughly two miles west the water reaches an embankment at the foot of Orleans Avenue Canal. It is 6 feet lower than the floodwalls. Water tips over and rushes into the City Park. 9:30 am: 1-wall panels on the east side of London Avenue Canal fail, releasing a wall of water and sand into homes and expanding the flooding of Gentilly. 9:45 am: Several 17th street Canal levee wall panels fail, releasing a rush of water into Lakeview. Water from this eventually fills much of midtown New Orleans and parts of Metairie. On the north shore, Katrina made landfall near Slidell. A 15-foot storm surge at the Lake Pontchartrain shoreline reaches more than 5 miles inland at some points. ...read more.


* An increased surface run-off results in soil erosion and more silt being built up in river beds (Brahmaputra river bed rising) * A total of 70 per cent land area is less than 1m above sea level. Effects * Over 57 per cent of the land area was flooded. * In the north-east of Assam more than 1 million people lost their homes. * 240 villages were submerged in the Nalbari district. * More than 1000 people were killed and millions were made homeless. * There were severe shortages of drinking water. * Diseases such as bronchitis and diarrhoea spread. * The Floods damaged fields (crops), buried villages in sand and silt and wrecked roads and bridges. * The floods cost the country almost $1 billion worth in damages. Short Term Relief * Farmers were provided with free seed from the government * Foreign aid (including 21 million from the UK government) and food aid was given. * Water Purification tablets were brought by money raised by the WHO (World Health Organisation) Long Term Flood Protection Measures * Flood protection shelters built, which can provide shelter in times of floods. Although can be swept away by them also. * Flood embankments built along the river. (7 500km built since 1947) * Upstream dams suggested. These would hold back the flow at its peak, but the costs of construction are very high. * Reduce deforestation in main water areas. * Providing emergency flood warning systems to give warnings and organise rescue and relief services (emergency medical and food supplies). ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Physical Geography 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 GCSE Physical Geography essays

  1. The Boscastle Flooding

    because the floodwater has blocked everywhere and crops, fields and farmer's livelihood are affected. To limit the damage we may perhaps be able to build a dam in the river and let only a little water out at a time, we, as people, could not build industries on floodplains as

  2. Bangladesh floods.

    However the government would be against this because they will find the scheme very expensive for them. Plan 2: Provide emergency medical stores in each village-train some villagers in basic health care. 2 It would have to enclose essential drugs, dressings and water purification tablets.

  1. A case study of the UK flooding: the river Uck, East Sussex, October 2000

    * a long term loss of trade, both for the flooded businesses, and for the wider business community; * widespread concerns about property values and insurance; * losses of agricultural crops and livestock; * impact on County Council Social Services provision due to the loss of day centres and buses;

  2. Floods of 1998 in Bangladesh and Shrewsbury

    The proposal of 'Ganga Barrage' is in the offing by the present government. The government may need foreign assistance and technical know how for these programmes, particularly for river dredging, land reclamation, and rehabilitation of the homeless flood affected people and the construction of the proposed 'Ganga Barrage'.

  1. Flooding in Bangladesh

    The tube wells will preserve fresh water whilst floods are happening, after the floods the water in the wells will still be fresh and good to drink. So the water in the wells will not harm any one when it is drunk after, people have caught fatal diseases in the

  2. Was it the human or natural causes that caused the 1998 floods in bangladesh?

    Plan 7 * Link up the emergency flood warning system-new communications centre would be built. Trained operators would be provided. All the villagers would be warned in time for preparations and evacuation * For: Villagers: they will have a chance of survival in the flood * Against: Farmers: it would

  1. Rainfall and Flooding

    the residence of York Effects of flooding: The effects of the flooding in the city of York in 1982 was tremendous. Many buildings are totally washed away and destroyed, shops were ruined and houses demolished. The floods were so severe that over 540 residential and industrial properties were flooded and a further 320 were put at risk.

  2. Case study of Bangladesh and Boscastle Floods.

    The absence of money in the country will inevitably mean certain amenities won?t get repaired. Immediate responses Boscastle Bangladesh 1. Buildings that were damaged were secured by building inspectors. This took 7 days, after which homeowners could retrieve there possessions.

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