Boscastle flooding notes

The increase in discharge can be triggered by several events. The most common cause of flooding is prolonged rainfall.

Boscastle flooding notes

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. Huge amounts of water from this sudden downpour flowed into two rivers, the Valency and Jordan which flows into the Valency just above Boscastle.

Both overflowed, and this caused a sudden rush of water to speed down the Valency — which runs through the middle of Boscastle.

Boscastle flooding notes

Destruction of houses, businesses and gardens Floodwater gushed into houses, shops and pubs. Cars, walls and even bridges were washed away. The church was filled with six feet of mud and water. The weight of water eroded river banks, damaged gardens and pavements.

Human Impacts There was a huge financial cost to the floods. Responses to the flooding John Prescott, the Deputy Prime Minister, and Prince Charles visited members of the emergency services and the local GP surgery, which acted as the emergency centre, in the Boscastle flooding notes following the disaster.

Prince Charles, who is the Duke of Cornwall, made a large donation to a fund to help rebuild parts of Boscastle. The Environment Agency is responsible for warning people about floods and reducing the likelihood of future floods.

The Environment Agency has carried a major project to increase flood defences in Boscastle, with the aim of preventing a similar flood happening again.

Boscastle flood of - Wikipedia

We are investing in new ways of predicting heavy rainfall events on a small scale to produce better warnings. In pictures Slide show of photographs of the Boscastle flood. This link opens in a new window.

Map of the area affected What happened to cause this event? The wind is blowing anticlockwise about the low pressure area, so the air is arriving into Boscastle from a south-westerly direction. It is a warm and moist tropical maritime air mass.

The line labelled known as a trough line caused very heavy rain and thunderstorms.

Boscastle flooding notes

A trough is an area of localised rain and thunderstorms. A line of convergence formed near the coast line, where air moving in almost opposite directions collides, this helped to increase the rate of ascent and produced very heavy rain.

There is more about surface pressure charts in the weather section of the Met Office website. Weather chart Fig 1.

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The rainfall rate key shows how the colours in the image relate to the rate the rainfall is falling. For example, the red areas indicate that rain is falling at between eight and 16 mm per hour. A line of very heavy rain starts at about 1 p. It remains over the area for about six hours.

Rainfall rates of at least 32 mm per hour are being measured.

River Flooding - GEOGRAPHY FOR & BEYOND

There is more about rainfall radar in the weather section of the Met Office website. Radar imagery Animation of rainfall radar. Satellite image The thickest cloud is shown by the brightest white areas on the picture. The pictures show cloud forming over Boscastle at about 1 p.timberdesignmag.com is a personal, non-profit making website for Geography teaching resources.

Use this resource to teach KS4 pupils about flooding in Boscastle.4/4(5). the boscastle flood - RGS resource. The Case Study You will need a copy of the PDF worksheet above and pages of the OCR B textbook.

The Effects of Flooding

Task 2 - Make notes on the practical ways that flood proofing a house can happen in Bangladesh. Include annotated sketches too. Presentation on Boscastle flooding event that occured in UK in Provides some valuable information for A-level Geography students as a case study. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.

Causes - over 60mm of rainfall in 2 hours - ground was already saturated - drainage basin has steep slopes and impermeable slate causing rapid surface run off. Boscastle, England Flooding in MEDC Case Study Causes: · Dead trees blocked the river channel · Heavy rainfall continuously. Boscastle is a village popular with tourists on the North Cornish coast, see Figure 5.

The river Valency, with a catchment of 18km², flows through the village and joins with the river Jordan in the centre of Boscastle (Roseveare and Trapmore, ).

the boscastle flood - RGS resource. The Case Study You will need a copy of the PDF worksheet above and pages of the OCR B textbook. Task 2 - Make notes on the practical ways that flood proofing a house can happen in Bangladesh. Include annotated sketches too. Boscastle is a village popular with tourists on the North Cornish coast, see Figure 5. The river Valency, with a catchment of 18km², flows through the village and joins with the river Jordan in the centre of Boscastle (Roseveare and Trapmore, ). Boscastle, England Flooding in MEDC Case Study Causes: · Dead trees blocked the river channel · Heavy rainfall continuously.
Boscastle flood of - Wikipedia