We are investing in new ways of predicting heavy rainfall events on a small scale to produce better warnings. Download the adaptable Word resource. 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. Cloudburst upon Hendraburnick Down: Human Impacts There was a huge financial cost to the floods. Hard impermeable surfaces increased bsurface run-off.
The danger of hypothermia, shock or even being swept away was great. The steepness of the valley accelerated the rainwater falling on the hills as it travelled down to the valley floor where Boscastle lies. Physical Impacts Responses to the flooding What happened to cause this event? Roseveare and Trapmore, Water on land – case studies. Weather chart Fig 1.
Cause, effect and response Floods More resources by this contributor 2.
The church was filled with six feet of mud and water. Human Impacts There was a huge financial cost to the floods. The rainfall rate key shows how the colours in the image relate to the rate the rainfall is falling.
Map of the area affected What happened to cause this event? In Augustthe village of Boscastle saw a month’s worth of rain fall in two hours.
Satellite image The studyy cloud is shown by the brightest white areas on the picture. Coastal Flooding in Towyn The river Valency had never had a major flood, so the residents of Boscastle saw no need to prepare for such an event.
The flooding also had several other key impacts on Boscastle and its inhabitants.
A Case Study of the Boscastle Floods
Weather chart Fig 1. There is more about rainfall radar in the weather section of the Met Office website. 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.
Roseveare and Trapmore, Fortunately, nobody died — thanks largely to a huge rescue operation involving helicopters — but there was millions of pounds worth of damage.
Flood management case study: In addition, the media coverage Boscastle received resulted intourists from April-October inan increase fromcse the floods, and tourists are still visiting, benefiting the local economy Cherrington, Boscastle Flood- 16th August Cars, walls and even bridges were washed away. The weight of water eroded river banks, damaged gardens and pavements. Effects Roads were blocked off by the floodwater, making emergency access difficult except from the air.
River management – AQA – Revision 5 – GCSE Geography – BBC Bitesize
It remains over the area for about six hours. Land owners were encouraged to maintain vegetation and plant new trees.
The drainage basin of Boscastle is steep and impermeable rock. For example, the red areas indicate that rain is falling at between eight and 16 mm per hour.
Boscastle flood – Causes and effects table in GCSE Geography
Boscastle, Cornwall In Augustthe village of Boscastle saw a month’s worth of rain facfs in two hours. Sign up to Comment. Weather60 8pp. Boscast le then and now [image online] Available at: Peter Report Mon 10th June, Boscastle is a village flooe with tourists on the North Cornish coast, see Figure 5.
We are investing in new ways of predicting heavy rainfall events on a small scale to produce better warnings. Meterorological analysis of the conditions leading to flooding on 16 August