The rainfall rate key shows how the colours in the image relate to the rate the rainfall is falling. Rainfall Radar Animation of rainfall radar. Hundreds killed Millions made homeless Contaminated water led to disease. No-one died mainly due to the rapid response of the emergency services. It remains over the area for about six hours. Fortunately, nobody died — thanks largely to a huge rescue operation involving helicopters — but there was millions of pounds worth of damage. 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.
Building along river Construction of small bridges across river trapped material behind them creating small dams River narrowed through Boscastle reducing capacity Deforestation in valleys. It is a warm and moist tropical maritime air mass. It remains over the area for about six hours. There is more about surface pressure charts in the weather section of the Met Office website. Small catchment area about 23km2 Impermeable upland area Bodmin Moor Steep-sided valleys Extremely wet summer, by August ground was saturated. The wind is blowing anticlockwise about the low pressure area, so the air is arriving into Boscastle from a south-westerly direction. Animation of rainfall radar.
Sort statements to show these causes, effects and responses, e. The Environment Agency has carried a major project to increase flood defences in Boscastle, with the aim of preventing a similar flood impavts again.
A line of very heavy rain starts at about 1 p.
The effects of and responses to floods vary between areas of contrasting levels of wealth.
The Environment Agency is responsible for warning people about floods and reducing the likelihood of future floods.
The rainfall rate key shows how the colours in the image relate to the rate the rainfall is falling. Fortunately, nobody died — thanks largely to a huge rescue operation involving helicopters — but there was millions of pounds worth of damage.
Cars, walls and even bridges were washed away. No-one died mainly due to the rapid ikpacts of the emergency services. Widening and deepening the river channel – this allowed the river to carry more water.
Web page reproduced with the kind permission of the Met Office. The flooding also had several other key impacts on Boscastle and its inhabitants.
Meghna, Ganges, Brahmaputra Video. In Augustthe village of Boscastle saw a month’s worth of rain fall in two hours. Severe floods in and Confluence of three rivers: There was a combination of human and physical causes contributing to a cass of effects and impacts.
Case Study – Boscastle Floods
Deforestation in Himalayas Ganges diverted for irrigation increasing silt deposition Rapid unplanned urbanisation in Dhaka. RAF search and rescue were alerted to boscastls trapped people.
Land owners were encouraged to maintain vegetation and plant new trees. Destruction of houses, businesses and gardens Food gushed into houses, shops and pubs. The drainage basin of Boscastle is steep and impermeable rock. 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.
Destroyed homes Stress and anxiety for local people Cars belonging to more than 1, people washed away. Floods dramatically affected tlood. Rainfall Radar Animation of rainfall radar.
River management – AQA – Revision 5 – GCSE Geography – BBC Bitesize
You need to be able to compare and explain the different effects of and responses to flooding. Both overflowed, and this caused a sudden rush of water to speed down the Valency — which runs through the middle of Boscastle.
A trough is an area of localised rain and thunderstorms. Boscastle is also located on a confluence of three rivers. Extract 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.
We are investing in new ways of predicting heavy rainfall events on a small scale to produce better warnings. Low bridges removed River widened through Boscastle New flood defence wall built in village centre River bed lowered by an average of 0. Cause, effect and response Floods More resources by this contributor bboscastle.
casee Satellite image The thickest cloud is shown by the brightest white areas on the picture. The effects of and responses to floods vary between areas of contrasting levels of wealth.
Weather system remained stationary over area due to converging winds.