There was a combination of human and physical causes contributing to a series of effects and impacts. 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. At the time of the floods, the operational forecast model had a resolution of 12 km, which was too large to be able to represent such a small scale collection of thunderstorms. Download the adaptable Word resource. 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.
Fortunately, nobody died — thanks largely to a huge rescue operation involving helicopters — but there was millions of pounds worth of damage. Combined with this the drainage basin has many steep slopes and there are areas of impermeable slate that led to rapid run-off.
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.
There is more about surface pressure charts in the weather section of the Met Office website. Map of the area affected What happened to cause this event? Related Topics Use the images below to explore related GeoTopics.
Flood Management Scheme – Boscastle – Internet Geography
Boscastle is at the confluence where tributaries meet of three rivers — Valency, Floodd, and Paradise. Cars were swept out to sea, buildings were badly damaged and people had to act quickly to survive.
The ground was already saturated due to above average rainfall during the previous two weeks. The pictures show cloud forming over Boscastle at about 1 p.
Case study of Bangladesh and Boscastle Floods.
Since the Boscastle case was re-run with a higher resolution research model which proved able to resolve the cqse of thunderstorms with much more accuracy and detail. A trough is an area of localised rain and thunderstorms.
Flooding On the day of the flood, about 75mm of rain fell in two hours flooxs the same amount that normally falls in the whole of August. About two billion litres of water then rushed acse the valley straight into Boscastle. Physical Impacts Responses to the flooding What happened to cause this event? The thickest cloud is shown by the brightest white areas on the picture. Land owners were encouraged to maintain vegetation and plant new trees. Boscastle, Cornwall In Augustthe village of Boscastle saw a month’s worth of rain fall in two hours.
Flood Management Scheme — Boscastle.
The site is self-funded and your support is really flods. Don’t show this message again. The drainage basin of Boscastle is steep and impermeable rock. The defences would not protect against a flood the same size as the one in Download the adaptable Word resource. Rainfall rates of at least 32 mm per hour are being measured.
Sorry, your blog cannot share posts by email.
Flood management case study: 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.
What was the management strategy? The risk of flooding has been reduced. 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.