The effects of and responses to floods vary between areas of contrasting levels of wealth.
For this section of the unit you need two case studies, one from a richer area of the world - Boscastle, UK and one from a poorer part of the world - Dhaka, Bangladesh. You need to be able to compare and explain the different effects of and responses to flooding.
16th August 2004
Village built at the confluence of the River Jordan and the River Valency
Severe floods in 1998 and 2004
Confluence of three rivers: Meghna, Ganges, Brahmaputra
|Responses||Short-term||Major incident declared at 5pm. RAF search and rescue were alerted to rescue trapped people. No-one died mainly due to the rapid response of the emergency services.|
To reduce the risk of future floods, a £4.6 million flood defence scheme was completed in 2008.
Dhaka Integrated Flood Protection Project
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Case study: Bocastle
Flooding can cause problems in both developed [developed: Refers to a country that has a lot of wealth or a population that is healthy and well educated.] and developing [developing: Refers to a country that has little wealth or a population that lacks healthcare and education.] countries.
Boscastle is a small coastal settlement in the south west of England. It flooded in August 2004, washing cars and buildings into the sea and putting peoples' lives in danger.
Causes of flooding in Boscastle:
Heavy localised rainfall – 89 mm of rain fell in an hour.
Saturated ground from previous rainfall.
Topography [topography: The shape of the land.] of the land. The landscape upstream of Boscastle, a steep-sided valley, acted as a funnel directing vast volumes of water into the village.
Narrow river channels in the village itself.
What has Boscastle done to prevent flooding in the future?
£4.5 million has been spent on a flood defence scheme.
The scheme stretches along the valley, incorporating drainage, sewerage systems and land re-grading.
Boscastle car park has been raised in height, which will stop the river from bursting its banks so easily.
New drains allow water to run into the lower section of the river quickly.
The river channel has been made deeper and wider so that it can accommodate more water.