Satellite image The thickest cloud is shown by the brightest white areas on the picture. Web page reproduced with the kind permission of the Met Office. The weight of water eroded river banks, damaged gardens and pavements. Flood management case study: Slide show of photographs of the Boscastle flood. The Environment Agency is responsible for warning people about floods and reducing the likelihood of future floods. Rainfall rates of at least 32 mm per hour are being measured.
Web page reproduced with the kind permission of the Met Office. The church was filled with six feet of mud and water. It remains over the area for about six hours. The Environment Agency has carried a major project to increase flood defences in Boscastle, with the aim of preventing a similar flood happening again. Both overflowed, and this caused a sudden rush of water to speed down the Valency — which runs through the middle of Boscastle. Boscastle is also located on a confluence of three rivers. Boscastle flood Emergency services on the scene of the flooded village of Boscastle.
River management – AQA – Revision 5 – GCSE Geography – BBC Bitesize
There were very few trees to absorb water and slow the amount of water going into the river. Rain for 12 out of 14 days in August. Rainfall Radar Animation of rainfall radar. The wind is blowing anticlockwise about the low pressure area, so the air is arriving into Boscastle from a south-westerly direction. The bridge acted like a boscasle and eventually smashed through causing a surge of water up to 5m high.
Web page reproduced with the kind permission of the Met Office. Cars, walls and even bridges were washed away.
Prince Charles, who is the Duke of Cornwall, made a large donation to a fund to help rebuild parts bbcc Boscastle. Human Impacts There was a huge financial cost to the floods.
Residents had little time to react. Animation of rainfall radar. The drainage basin of Boscastle is steep and impermeable rock.
Removing low bridges and replacing them with wider bridges – this meant large amounts of water could flow dtudy 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. The rock in the local area is slate which does not allow percolation.
Many trees had fllood cut down for farming. 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. Both overflowed, and this caused a sudden rush of water to speed down the Valency — which runs through the middle of Boscastle.
River flooding and management issues – Revision 3 – GCSE Geography – BBC Bitesize
Floods devastate village On 16 Lfooda devastating flood swept through the small Cornish village of Boscastle. Very heavy rain fell in storms close to the village, causing two rivers to burst their banks. Huge amounts of water from this sudden downpour flowed into two rivers, the Valency and Jordan which flows into the Valency just above Boscastle.
A trough is an area of localised boscsstle and thunderstorms. These became saturated so water became surface run-off very quickly. Flood management case study: It is a warm and moist tropical maritime air mass. There is more about surface pressure charts in the weather section of the Met Office website. A large quantity of water arrived within a short space of time causing the rivers to overflow. The line labelled known as a trough line caused very heavy rain and thunderstorms.
The flooding also had several other key impacts on Boscastle and its inhabitants. Destruction of houses, businesses and gardens Floodwater gushed into houses, shops and pubs. Tree management – dead trees were removed to prevent them being swept away, causing blockages under bridges.
Case Study – Boscastle Floods
Boscastle, Cornwall In Augustthe village of Boscastle saw a month’s worth of rain fall in two hours. British Isles case study: Raising the car park and using a permeable surface – this allowed cars to be much higher and so they were less likely to be swept away.
Boscastle is also located on a confluence of three rivers. 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 days following the disaster.