Case Studies Flashcards
Typhoon Haiyan
IMPACTS on PEOPLE
6190 deaths
1785 missing
Damage to seed stocks resulted in food shortages for 2.5 million
Diseases such as cholera and dysentery spread from corpses
Raw sewage got into the water supply and contaminated it
Millions experienced black outs in the Philippines
The city of Bogo was blacked out and it took weeks to restore power
IMPACTS on PROPERTY
5 million homes were destroyed
90% of structures within a 500 mile radius were destroyed
Many took refuge in a stadium that later flooded
The main Tacloban airport was flooded up to its second storey
Yellowstone
Impact on People
Would kill anyone within 1,000km who inhale the resultant ash
Water supplies would be rendered undrinkable
Global rainfall/temperatures would decrease
Impact on Environment
Aerosols could stop sunlight from reaching the surface
Would raise the temperature by up to ten degrees
Local animals would die
Mississippi river
Hard engineering methods
Raised levees up to 15m
Straightening the river channel cutting through over 1750 km of meanders
Built over 100 dams
Soft engineering methods
Afforestation
Safe flood zones
Wash lands
Newcastle
Sea wall: Curved concrete wall
Advantages: The old wall protected Newcastle for many years, the new wall is curved so the energy travels back into the ocean
Disadvantages: Reflected wave energy erodes the beaches the wall is still impacted by energy
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Gabions: Wire boxes filled with stones
Advantages: Works better than walls or other methods
Disadvantages: Overtime they have to be replaced which is expensive
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Groynes: Long fences made of heavy wood
Advantages: It lasted about twenty years
Disadvantages: Eventually decayed and needed replaced
River Parret
Severe storms and high tides had been raising the water level
Lack of nearby vegetation
Low lying land
River was filled with other materials such as silt
