Homework 13 - PowerPoint Presentation

Slide1

Homework 13

Complete the flash card sheets to illustrate the key ideas about your population and settlement case studies

One has been done for you, so you know what to do

Rivers

River’s long profile- River Tees/River Severn

Flooding in Bangladesh

Flooding in Australia/Yorkshire

Coasts

Holderness Coast-Features

Holderness Coast-Coastal

Management

Use your notes,

revision guides and

the internet to

help including

http://padlet.com/swo/geography11DSlide2

Holderness Coast- Coastal Management

2 Sentence Summary of the case study:

There are

groynes and Mappleton and Hornsea to trap sediment and build up a beach to protect the shore from erosion. There is also a sea wall at Hornsea to reflect the energy of the waves whereas in Aldborough, they are using managed retreat.Image:PLCs (PLaCe facts:The Holderness coast is eroding at an average rate of 2m per year.This material was deposited by glaciers around 12,000 years ago.Groynes at MappletonSlide3

Flooding in Bangladesh:

Bangladesh

– PLC facts:

Is one of the world's most densely populated countries! it also has a population of 125m inhabitants .Is one of the poorest countries in the world with a GNP of $200 per head .Has three of the world's most powerful rivers passing through its country - The Ganges, the Meghna & the Brahmaputra . In 2007 flooding made 9 million people homeless.Bangladesh is prone to flooding due to heavy monsoon rains, increasing urban areas, deforestation and lots of low-lying land.The South Asian country Bangladesh located next to India is prone to flooding due to being situated on the Ganges Delta and the many tributaries flowing into the Bay of Bengal. The coastal flooding twinned with the bursting of Bangladesh's river banks is common and severely affects the landscape and society of Bangladesh.Image:Slide4

Flooding in Australia-January 2011

A new year has brought another major flooding incident as a result of unexpectedly heavy

rainfall.

Earlier in the month the coastal town of Rockhampton was in the news when the town was almost cut off by floodwaters and residents were threatened by venomous snakes.Image:Australia plc facts- In Australia 1.3 million homes have a flood risk ratingThe estimated average annual cost of floods in Australia is $314 million*.The emergency services sector, as well as the insurance industry recommends that homeowners and organisations implement annual risk management strategies which include disaster planning and preparation.Slide5

River’s long profile- River

Tees

case studyThe river tees is located in the north-east england.Its source area is high in pennines in the west and the river flows eastwards into the north sea.The river tees is flashy meaning that water levels can rise very quickly following a rain storm, storing water in the reservoir helps to reduce flooding in the lower course. The high rainfall also gives a higher water supply.Image:Slide6

Holderness Coast-Features

The Holderness Coast is located on the east coast of England. It extends 61km from Flamborough in the north to Spurn Point in the south.

The

coasts total length is 37.9 miles.PLCs (PLaCe facts:A spit at Spurn Point.A headland made of Chalk at Flamborough.There are also caves, stacks and arches along the coastlineThe Holderness Coast is one of Europe's fastest eroding coastlines. The average annual rate of erosion is around 2 metres per year. This is around 2 million tonnes of material every year. Under lying the Holderness Coast is bedrock made up of Cretaceous Chalk. However, in most place this is covered by glacial till deposited over 18,000 years ago. It is this soft boulder clay that is being rapidly eroded.

Image: