How do atmospheric systems cause heavy snowfall, intense cold spells, heatwaves and drought and in what ways do they represent a hazard to people? (cont)
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- Created on: 16-05-14 15:15
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- How do atmospheric systems cause heavy snowfall, intense cold spells, heatwaves and drought and in what ways do they represent a hazard to people? (cont)
- Europe 2003 summer heatwave
- 14802 heat-related deaths in France. However, effects on crops has caused estimates of up to 70000
- Hottest summer for 500 years
- Many countries experienced hottest temps on record
- 39 Degrees recorder in Kent on 10th August 2003. This stands as the hottest temp recorded in Britain
- Caused by a blocking anticyclone
- 215000 hedtares of forest destroyed in Portugal by fires
- Extreme snow and ice melt in the Alps led to increased rockfall and mudslides
- Livestock badly effected across Europe
- 2 power plants closed down in Germany
- Transport badly effected- Subways became unusable and some train tracks even buckled
- Boscastle floods 2004
- Monday 16th August 2004
- Causes
- Caused by a blocking anticyclone that was particularly warm. This was sat over the particularly warm Atlantic Ocean. The high pressure picked up high amounts of moisture
- Orographic uplift as the high pressure hi the coast caused rain
- 89mm of rain fell just uphill of Boscastle in 60 mins
- Steep relief and urban environments caused high surface runoff levels
- 2m rise in river levels in 1 hour
- 3m rushed through Boscastle main street
- Water speed of 4m/s
- 20,000,000 cubic metres of water and mud in one day
- Impacts
- 75 cars, 6 buildings, and several boats were washed into the sea
- 100 homes and businesses destroyed
- 7 Sea Kings rescued 150 people from mid-afternoon until 0230
- No deaths, only injury was broken hand
- Long-term responses
- River widened and deepened
- Flood defenses increased considerably
- New bridge constructed over river to increase flow of river
- Europe 2003 summer heatwave
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