BOSCASTLE CASE STUDY BBC BITESIZE

These factors led to a flash flood which caused over one thousand homes, cars and businesses to be swept away and damaged. 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. The ground was already saturated due to the previous 2 weeks of above average rainfall. Water on land – case studies. They increase the peak discharge. Steep valley sides – water flowed into the river channel very quickly. How many storms have occurred during one month.

British Isles case study: This had an impact on livelihoods and the local economy. A large quantity of water arrived within a short space of time causing the rivers to overflow. The rock in the local area is slate which does not allow percolation. The topography of the land. Small, low bridges over river trapped material and cars acting as a damn and causing more water to flow around the bridge leading to flooding.

Old sewer and drainage system with low capacity. Widening and deepening the river channel – this allowed the river to carry more water.

Steep valley sides – water flowed into the river channel very quickly. The rock stufy the local area is slate which does not allow percolation. They increase the peak rainfall.

MEDC CaseStudy – Boscastle Flooding

British Isles case study: Report Wed 3rd May, The ground was already saturated due to the previous 2 weeks of above average rainfall. What is a long-term response to flooding in Bangladesh? A depression brought a thunderstorm on 16 August with over mm of rain in 24 hours. How much rainfall an area has had in one week. What of these is a physical cause of flooding? Overall summary A small north Cornish town popular with tourists.

  CAPSTONE CASE STUDY NCOA

boscastle case study bbc bitesize

The topography of the land. They increase the lag time. People in LEDCs lack education so they do not understand that floods are dangerous.

Hit by catastrophic floods on 16th August A few old arch bridges got blocked up with the flood debris.

Boscastle is at the confluence of 3 rivers, Valency, Jordan and Paradise. The soils were quite thin and made up of impermeable peat soils.

River flooding and management issues – Revision 3 – GCSE Geography – BBC Bitesize

Small, low bridges over river trapped material and cars acting as a damn and causing more water to flow around the bridge leading to flooding. Land owners were encouraged to maintain vegetation and plant new trees.

Boscastle, Cornwall In Augustthe village of Boscastle saw a month’s biteslze of rain fall in two hours. Many trees had been cut down for farming. Rain for 12 out of 14 days in August. The drainage basin of Boscastle is steep and impermeable rock. Boscastle is also located on a confluence of three rivers. The flooding coincided with a high tide, making the impact much worse.

Increase in buildings within the drainage basin meant that there more impermeable surfaces which directed water back to the river faster. A large quantity of water all arrived within sstudy short space of time causing the rivers to overflow. What of these is a human cause of flooding? Rock that doesn’t allow water through it. How many storms have occurred during one month. Rock stduy does allow water through it. This had an impact on livelihoods and the local economy.

  NWABR ESSAY CONTEST

boscastle case study bbc bitesize

The bridge acted like a dam and eventually smashed through causing a surge of water up to 5m high.