BOSCASTLE FLOOD CASE STUDY IMPACTS

Human Impacts There was a huge financial cost to the floods. Both overflowed, and this caused a sudden rush of water to speed down the Valency — which runs through the middle of Boscastle. A line of very heavy rain starts at about 1 p. Keep me logged in. Physical Impacts Flooding On the day of the flood, about 75mm of rain fell in two hours — the same amount that normally falls in the whole of August.

The flood on 16 August in Boscastle in Cornwall was the worst in local memory and an Environment Agency report concluded that it was among the most extreme ever experienced in Britain. Over bridges destroyed 15,km road damaged Crops lost leading to food shortages Financial losses for businesses and shops Communications damaged making co-ordinating rescue efforts difficult. Gardens and pavements destroyed by weight of floodwater. Each shelter has space for over families and includes a toilet Radios to issue warnings Embankments to hold back rising water Sluice gates able to close channel when water rises Slope protection to reduce erosion of embankments. Cause, effect and response Floods More resources by this contributor 2.

These factors led to a flash flood which caused over one thousand homes, cars and businesses to be swept away and damaged. The flooding also had several other stuyd impacts on Boscastle and its inhabitants. It remains over the area for about six hours. Village built at the confluence of the River Jordan and the River Valency. Using the Teachit Geography template, this sorting exercise provides a framework for investigating cause of, effect of and response to the Boscastle studh.

Cars, walls and even bridges were washed away.

Rivers and flooding – Revision 3 – KS3 Geography – BBC Bitesize

Rainfall Radar Animation of rainfall radar. Physical Impacts Flooding On the day of the flood, about 75mm of rain fell in two hours — the same amount that normally falls in the whole of August. The Environment Agency is responsible for warning people about floods and reducing the likelihood of future floods. There is more about surface pressure charts in the weather section of the Met Office website.

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The Boscastle flood of – A case study of cause, effect and response

Dhaka Boscaslte Flood Protection Project Cluster villages raised by 2m and raised homesteads individual homes raised by 2m on earth banks Flood shelter: We use cookies czse deliver functionality and provide you with a better service. Weather system remained stationary over area due to converging winds. There is more about rainfall radar in the weather section of the Met Office website. Deforestation in Himalayas Ganges diverted for irrigation increasing silt deposition Rapid unplanned urbanisation in Dhaka.

Boscastle is also located on a confluence of three rivers. Sort statements to show these causes, effects and responses, e. Building along river Construction of small bridges across river trapped material behind them creating small tsudy River narrowed through Boscastle reducing capacity Deforestation in valleys.

The effects of and responses to floods vary between areas of contrasting levels of wealth.

Radar stusy Fig 2. We are investing in new ways of predicting heavy rainfall events on a small scale to produce better warnings. The responses to the flood were both short and long term.

Removing low bridges and replacing them with wider bridges – this meant large amounts of water could flow freely underneath the bridge and the bridge wouldn’t act like a dam in the flood, vegetation and debris became blocked, creating the effect of a dam. Agricultural land flooded and contaminated by polluted water.

The drainage basin of Boscastle is steep and impermeable rock.

Land owners were encouraged to maintain vegetation and plant new trees. Flooding On the day of the flood, about 75mm of rain fell in two hours — the same amount that normally falls in the whole of August. Casd catchment area about 23km2 Impermeable upland area Bodmin Impactx Steep-sided valleys Extremely wet summer, by August ground was saturated. The Boscastle flood of — A case study of cause, effect and response Using the Teachit Geography template, this sorting exercise provides a framework for investigating cause of, effect of and response to the Boscastle flood.

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Case Study – Boscastle Floods

Floods devastate village On 16 Augusta devastating flood swept through the small Cornish village of Boscastle. Huge amounts of water from this sudden downpour flowed into two rivers, the Valency and Jordan which flows into the Valency just above Boscastle.

boscastle flood case study impacts

The line labelled known as a trough line caused very heavy rain and thunderstorms. Hundreds killed Millions made homeless Contaminated water led to disease. Satellite image The thickest cloud is shown by the brightest white areas on the picture.

boscastle flood case study impacts

Each shelter has space for over families and includes a toilet Radios to issue warnings Embankments to hold back rising water Sluice gates able to close channel when water rises Slope protection to reduce erosion of embankments.

The wind is blowing anticlockwise about the low boscasgle area, so the air is arriving into Boscastle from a south-westerly direction. Boscastle, Cornwall In Augustthe village of Boscastle saw a month’s worth of rain fall in two hours.

Human Impacts There was a huge financial cost to the floods.